Hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function NiMo/γ–Al
The recent 0.5 wt% global sulfur cap on marine fuels increases the demand for low-sulfur marine fuels. Currently, marine fuels on the market contain up to 4.5 wt% of sulfur. The existing standalone desulfurization processes including hydrotreatment are not cost-effective for reducing the sulfur leve...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Vedachalam, Sundaramurthy [verfasserIn] Dalai, Ajay K. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Catalysis today - Amsterdam : Elsevier, 1987, 407, Seite 165-171 |
|---|---|
| Übergeordnetes Werk: |
volume:407 ; pages:165-171 |
| DOI / URN: |
10.1016/j.cattod.2022.01.013 |
|---|
| Katalog-ID: |
ELV008738718 |
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| 245 | 1 | 0 | |a Hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function NiMo/γ–Al |
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| 520 | |a The recent 0.5 wt% global sulfur cap on marine fuels increases the demand for low-sulfur marine fuels. Currently, marine fuels on the market contain up to 4.5 wt% of sulfur. The existing standalone desulfurization processes including hydrotreatment are not cost-effective for reducing the sulfur level of marine fuel to the mandated level. This study explored a new combination of desulfurization methods for marine fuels, first hydrotreatment under moderate process conditions, followed by oxidative desulfurization (ODS) to reduce the sulfur content to a desirable level of ≤ 0.5 wt%. The heavy fuel oil (HFO) feedstock of this study contains 3.4 wt% of S. Hydrotreating of HFO was performed in a trickle bed reactor using a commercial NiMo/γ–Al2O3 sulfide catalyst. Hydrotreating reduced the sulfur content of HFO to 1.14 wt%. It was further desulfurized by ODS using cumene hydroperoxide as an oxidant over the oxide form of NiMo/γ–Al2O3 catalyst. The FTIR analysis of the ODS product validated oxidation of sulfur compounds into sulfones and sulfoxides. The Box-Behnken design was applied to optimize ODS reaction variables such as temperature, oxidant concentration, and time. NiMo/γ–Al2O3 contains surface oxomolybdenum sites, which are expected to catalyze ODS by transferring oxygen from cumene hydroperoxide to sulfur compounds. The NiMo/γ–Al2O3 catalyst was found to be suitable for both hydrotreating and ODS. The upgraded heavy fuel oil of this two-step desulfurization process meets the IMO 2020 sulfur regulations. | ||
| 650 | 4 | |a Low sulfur marine fuel | |
| 650 | 4 | |a Heavy fuel oil | |
| 650 | 4 | |a Hydrotreatment | |
| 650 | 4 | |a Oxidative desulfurization | |
| 650 | 4 | |a NiMo/γ–Al | |
| 700 | 1 | |a Dalai, Ajay K. |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Catalysis today |d Amsterdam : Elsevier, 1987 |g 407, Seite 165-171 |h Online-Ressource |w (DE-627)320504255 |w (DE-600)2012626-8 |w (DE-576)096704268 |x 1873-4308 |7 nnns |
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10.1016/j.cattod.2022.01.013 doi (DE-627)ELV008738718 (ELSEVIER)S0920-5861(22)00021-9 DE-627 ger DE-627 rda eng 660 540 DE-600 35.17 bkl Vedachalam, Sundaramurthy verfasserin aut Hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function NiMo/γ–Al 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The recent 0.5 wt% global sulfur cap on marine fuels increases the demand for low-sulfur marine fuels. Currently, marine fuels on the market contain up to 4.5 wt% of sulfur. The existing standalone desulfurization processes including hydrotreatment are not cost-effective for reducing the sulfur level of marine fuel to the mandated level. This study explored a new combination of desulfurization methods for marine fuels, first hydrotreatment under moderate process conditions, followed by oxidative desulfurization (ODS) to reduce the sulfur content to a desirable level of ≤ 0.5 wt%. The heavy fuel oil (HFO) feedstock of this study contains 3.4 wt% of S. Hydrotreating of HFO was performed in a trickle bed reactor using a commercial NiMo/γ–Al2O3 sulfide catalyst. Hydrotreating reduced the sulfur content of HFO to 1.14 wt%. It was further desulfurized by ODS using cumene hydroperoxide as an oxidant over the oxide form of NiMo/γ–Al2O3 catalyst. The FTIR analysis of the ODS product validated oxidation of sulfur compounds into sulfones and sulfoxides. The Box-Behnken design was applied to optimize ODS reaction variables such as temperature, oxidant concentration, and time. NiMo/γ–Al2O3 contains surface oxomolybdenum sites, which are expected to catalyze ODS by transferring oxygen from cumene hydroperoxide to sulfur compounds. The NiMo/γ–Al2O3 catalyst was found to be suitable for both hydrotreating and ODS. The upgraded heavy fuel oil of this two-step desulfurization process meets the IMO 2020 sulfur regulations. Low sulfur marine fuel Heavy fuel oil Hydrotreatment Oxidative desulfurization NiMo/γ–Al Dalai, Ajay K. verfasserin aut Enthalten in Catalysis today Amsterdam : Elsevier, 1987 407, Seite 165-171 Online-Ressource (DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 1873-4308 nnns volume:407 pages:165-171 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.17 Katalyse AR 407 165-171 |
| spelling |
10.1016/j.cattod.2022.01.013 doi (DE-627)ELV008738718 (ELSEVIER)S0920-5861(22)00021-9 DE-627 ger DE-627 rda eng 660 540 DE-600 35.17 bkl Vedachalam, Sundaramurthy verfasserin aut Hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function NiMo/γ–Al 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The recent 0.5 wt% global sulfur cap on marine fuels increases the demand for low-sulfur marine fuels. Currently, marine fuels on the market contain up to 4.5 wt% of sulfur. The existing standalone desulfurization processes including hydrotreatment are not cost-effective for reducing the sulfur level of marine fuel to the mandated level. This study explored a new combination of desulfurization methods for marine fuels, first hydrotreatment under moderate process conditions, followed by oxidative desulfurization (ODS) to reduce the sulfur content to a desirable level of ≤ 0.5 wt%. The heavy fuel oil (HFO) feedstock of this study contains 3.4 wt% of S. Hydrotreating of HFO was performed in a trickle bed reactor using a commercial NiMo/γ–Al2O3 sulfide catalyst. Hydrotreating reduced the sulfur content of HFO to 1.14 wt%. It was further desulfurized by ODS using cumene hydroperoxide as an oxidant over the oxide form of NiMo/γ–Al2O3 catalyst. The FTIR analysis of the ODS product validated oxidation of sulfur compounds into sulfones and sulfoxides. The Box-Behnken design was applied to optimize ODS reaction variables such as temperature, oxidant concentration, and time. NiMo/γ–Al2O3 contains surface oxomolybdenum sites, which are expected to catalyze ODS by transferring oxygen from cumene hydroperoxide to sulfur compounds. The NiMo/γ–Al2O3 catalyst was found to be suitable for both hydrotreating and ODS. The upgraded heavy fuel oil of this two-step desulfurization process meets the IMO 2020 sulfur regulations. Low sulfur marine fuel Heavy fuel oil Hydrotreatment Oxidative desulfurization NiMo/γ–Al Dalai, Ajay K. verfasserin aut Enthalten in Catalysis today Amsterdam : Elsevier, 1987 407, Seite 165-171 Online-Ressource (DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 1873-4308 nnns volume:407 pages:165-171 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.17 Katalyse AR 407 165-171 |
| allfields_unstemmed |
10.1016/j.cattod.2022.01.013 doi (DE-627)ELV008738718 (ELSEVIER)S0920-5861(22)00021-9 DE-627 ger DE-627 rda eng 660 540 DE-600 35.17 bkl Vedachalam, Sundaramurthy verfasserin aut Hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function NiMo/γ–Al 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The recent 0.5 wt% global sulfur cap on marine fuels increases the demand for low-sulfur marine fuels. Currently, marine fuels on the market contain up to 4.5 wt% of sulfur. The existing standalone desulfurization processes including hydrotreatment are not cost-effective for reducing the sulfur level of marine fuel to the mandated level. This study explored a new combination of desulfurization methods for marine fuels, first hydrotreatment under moderate process conditions, followed by oxidative desulfurization (ODS) to reduce the sulfur content to a desirable level of ≤ 0.5 wt%. The heavy fuel oil (HFO) feedstock of this study contains 3.4 wt% of S. Hydrotreating of HFO was performed in a trickle bed reactor using a commercial NiMo/γ–Al2O3 sulfide catalyst. Hydrotreating reduced the sulfur content of HFO to 1.14 wt%. It was further desulfurized by ODS using cumene hydroperoxide as an oxidant over the oxide form of NiMo/γ–Al2O3 catalyst. The FTIR analysis of the ODS product validated oxidation of sulfur compounds into sulfones and sulfoxides. The Box-Behnken design was applied to optimize ODS reaction variables such as temperature, oxidant concentration, and time. NiMo/γ–Al2O3 contains surface oxomolybdenum sites, which are expected to catalyze ODS by transferring oxygen from cumene hydroperoxide to sulfur compounds. The NiMo/γ–Al2O3 catalyst was found to be suitable for both hydrotreating and ODS. The upgraded heavy fuel oil of this two-step desulfurization process meets the IMO 2020 sulfur regulations. Low sulfur marine fuel Heavy fuel oil Hydrotreatment Oxidative desulfurization NiMo/γ–Al Dalai, Ajay K. verfasserin aut Enthalten in Catalysis today Amsterdam : Elsevier, 1987 407, Seite 165-171 Online-Ressource (DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 1873-4308 nnns volume:407 pages:165-171 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.17 Katalyse AR 407 165-171 |
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10.1016/j.cattod.2022.01.013 doi (DE-627)ELV008738718 (ELSEVIER)S0920-5861(22)00021-9 DE-627 ger DE-627 rda eng 660 540 DE-600 35.17 bkl Vedachalam, Sundaramurthy verfasserin aut Hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function NiMo/γ–Al 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The recent 0.5 wt% global sulfur cap on marine fuels increases the demand for low-sulfur marine fuels. Currently, marine fuels on the market contain up to 4.5 wt% of sulfur. The existing standalone desulfurization processes including hydrotreatment are not cost-effective for reducing the sulfur level of marine fuel to the mandated level. This study explored a new combination of desulfurization methods for marine fuels, first hydrotreatment under moderate process conditions, followed by oxidative desulfurization (ODS) to reduce the sulfur content to a desirable level of ≤ 0.5 wt%. The heavy fuel oil (HFO) feedstock of this study contains 3.4 wt% of S. Hydrotreating of HFO was performed in a trickle bed reactor using a commercial NiMo/γ–Al2O3 sulfide catalyst. Hydrotreating reduced the sulfur content of HFO to 1.14 wt%. It was further desulfurized by ODS using cumene hydroperoxide as an oxidant over the oxide form of NiMo/γ–Al2O3 catalyst. The FTIR analysis of the ODS product validated oxidation of sulfur compounds into sulfones and sulfoxides. The Box-Behnken design was applied to optimize ODS reaction variables such as temperature, oxidant concentration, and time. NiMo/γ–Al2O3 contains surface oxomolybdenum sites, which are expected to catalyze ODS by transferring oxygen from cumene hydroperoxide to sulfur compounds. The NiMo/γ–Al2O3 catalyst was found to be suitable for both hydrotreating and ODS. The upgraded heavy fuel oil of this two-step desulfurization process meets the IMO 2020 sulfur regulations. Low sulfur marine fuel Heavy fuel oil Hydrotreatment Oxidative desulfurization NiMo/γ–Al Dalai, Ajay K. verfasserin aut Enthalten in Catalysis today Amsterdam : Elsevier, 1987 407, Seite 165-171 Online-Ressource (DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 1873-4308 nnns volume:407 pages:165-171 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.17 Katalyse AR 407 165-171 |
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10.1016/j.cattod.2022.01.013 doi (DE-627)ELV008738718 (ELSEVIER)S0920-5861(22)00021-9 DE-627 ger DE-627 rda eng 660 540 DE-600 35.17 bkl Vedachalam, Sundaramurthy verfasserin aut Hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function NiMo/γ–Al 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The recent 0.5 wt% global sulfur cap on marine fuels increases the demand for low-sulfur marine fuels. Currently, marine fuels on the market contain up to 4.5 wt% of sulfur. The existing standalone desulfurization processes including hydrotreatment are not cost-effective for reducing the sulfur level of marine fuel to the mandated level. This study explored a new combination of desulfurization methods for marine fuels, first hydrotreatment under moderate process conditions, followed by oxidative desulfurization (ODS) to reduce the sulfur content to a desirable level of ≤ 0.5 wt%. The heavy fuel oil (HFO) feedstock of this study contains 3.4 wt% of S. Hydrotreating of HFO was performed in a trickle bed reactor using a commercial NiMo/γ–Al2O3 sulfide catalyst. Hydrotreating reduced the sulfur content of HFO to 1.14 wt%. It was further desulfurized by ODS using cumene hydroperoxide as an oxidant over the oxide form of NiMo/γ–Al2O3 catalyst. The FTIR analysis of the ODS product validated oxidation of sulfur compounds into sulfones and sulfoxides. The Box-Behnken design was applied to optimize ODS reaction variables such as temperature, oxidant concentration, and time. NiMo/γ–Al2O3 contains surface oxomolybdenum sites, which are expected to catalyze ODS by transferring oxygen from cumene hydroperoxide to sulfur compounds. The NiMo/γ–Al2O3 catalyst was found to be suitable for both hydrotreating and ODS. The upgraded heavy fuel oil of this two-step desulfurization process meets the IMO 2020 sulfur regulations. Low sulfur marine fuel Heavy fuel oil Hydrotreatment Oxidative desulfurization NiMo/γ–Al Dalai, Ajay K. verfasserin aut Enthalten in Catalysis today Amsterdam : Elsevier, 1987 407, Seite 165-171 Online-Ressource (DE-627)320504255 (DE-600)2012626-8 (DE-576)096704268 1873-4308 nnns volume:407 pages:165-171 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.17 Katalyse AR 407 165-171 |
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Vedachalam, Sundaramurthy |
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Vedachalam, Sundaramurthy ddc 660 bkl 35.17 misc Low sulfur marine fuel misc Heavy fuel oil misc Hydrotreatment misc Oxidative desulfurization misc NiMo/γ–Al Hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function NiMo/γ–Al |
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660 540 DE-600 35.17 bkl Hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function NiMo/γ–Al Low sulfur marine fuel Heavy fuel oil Hydrotreatment Oxidative desulfurization NiMo/γ–Al |
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hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function nimo/γ–al |
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Hydrotreating and oxidative desulfurization of heavy fuel oil into low sulfur marine fuel over dual function NiMo/γ–Al |
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The recent 0.5 wt% global sulfur cap on marine fuels increases the demand for low-sulfur marine fuels. Currently, marine fuels on the market contain up to 4.5 wt% of sulfur. The existing standalone desulfurization processes including hydrotreatment are not cost-effective for reducing the sulfur level of marine fuel to the mandated level. This study explored a new combination of desulfurization methods for marine fuels, first hydrotreatment under moderate process conditions, followed by oxidative desulfurization (ODS) to reduce the sulfur content to a desirable level of ≤ 0.5 wt%. The heavy fuel oil (HFO) feedstock of this study contains 3.4 wt% of S. Hydrotreating of HFO was performed in a trickle bed reactor using a commercial NiMo/γ–Al2O3 sulfide catalyst. Hydrotreating reduced the sulfur content of HFO to 1.14 wt%. It was further desulfurized by ODS using cumene hydroperoxide as an oxidant over the oxide form of NiMo/γ–Al2O3 catalyst. The FTIR analysis of the ODS product validated oxidation of sulfur compounds into sulfones and sulfoxides. The Box-Behnken design was applied to optimize ODS reaction variables such as temperature, oxidant concentration, and time. NiMo/γ–Al2O3 contains surface oxomolybdenum sites, which are expected to catalyze ODS by transferring oxygen from cumene hydroperoxide to sulfur compounds. The NiMo/γ–Al2O3 catalyst was found to be suitable for both hydrotreating and ODS. The upgraded heavy fuel oil of this two-step desulfurization process meets the IMO 2020 sulfur regulations. |
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The recent 0.5 wt% global sulfur cap on marine fuels increases the demand for low-sulfur marine fuels. Currently, marine fuels on the market contain up to 4.5 wt% of sulfur. The existing standalone desulfurization processes including hydrotreatment are not cost-effective for reducing the sulfur level of marine fuel to the mandated level. This study explored a new combination of desulfurization methods for marine fuels, first hydrotreatment under moderate process conditions, followed by oxidative desulfurization (ODS) to reduce the sulfur content to a desirable level of ≤ 0.5 wt%. The heavy fuel oil (HFO) feedstock of this study contains 3.4 wt% of S. Hydrotreating of HFO was performed in a trickle bed reactor using a commercial NiMo/γ–Al2O3 sulfide catalyst. Hydrotreating reduced the sulfur content of HFO to 1.14 wt%. It was further desulfurized by ODS using cumene hydroperoxide as an oxidant over the oxide form of NiMo/γ–Al2O3 catalyst. The FTIR analysis of the ODS product validated oxidation of sulfur compounds into sulfones and sulfoxides. The Box-Behnken design was applied to optimize ODS reaction variables such as temperature, oxidant concentration, and time. NiMo/γ–Al2O3 contains surface oxomolybdenum sites, which are expected to catalyze ODS by transferring oxygen from cumene hydroperoxide to sulfur compounds. The NiMo/γ–Al2O3 catalyst was found to be suitable for both hydrotreating and ODS. The upgraded heavy fuel oil of this two-step desulfurization process meets the IMO 2020 sulfur regulations. |
| abstract_unstemmed |
The recent 0.5 wt% global sulfur cap on marine fuels increases the demand for low-sulfur marine fuels. Currently, marine fuels on the market contain up to 4.5 wt% of sulfur. The existing standalone desulfurization processes including hydrotreatment are not cost-effective for reducing the sulfur level of marine fuel to the mandated level. This study explored a new combination of desulfurization methods for marine fuels, first hydrotreatment under moderate process conditions, followed by oxidative desulfurization (ODS) to reduce the sulfur content to a desirable level of ≤ 0.5 wt%. The heavy fuel oil (HFO) feedstock of this study contains 3.4 wt% of S. Hydrotreating of HFO was performed in a trickle bed reactor using a commercial NiMo/γ–Al2O3 sulfide catalyst. Hydrotreating reduced the sulfur content of HFO to 1.14 wt%. It was further desulfurized by ODS using cumene hydroperoxide as an oxidant over the oxide form of NiMo/γ–Al2O3 catalyst. The FTIR analysis of the ODS product validated oxidation of sulfur compounds into sulfones and sulfoxides. The Box-Behnken design was applied to optimize ODS reaction variables such as temperature, oxidant concentration, and time. NiMo/γ–Al2O3 contains surface oxomolybdenum sites, which are expected to catalyze ODS by transferring oxygen from cumene hydroperoxide to sulfur compounds. The NiMo/γ–Al2O3 catalyst was found to be suitable for both hydrotreating and ODS. The upgraded heavy fuel oil of this two-step desulfurization process meets the IMO 2020 sulfur regulations. |
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| score |
7.400177 |