Carbon-Energy Impact Analysis of Heavy Residue Gasification Plant Integration into Oil Refinery
A gasification plant may partially replace an industrial thermal plant and hydrogen production plant by polygenerating valuable products (hydrogen, power, steam) from low-value materials. Carbon energy analysis is one way of conceptually evaluating such processes. In this paper, the integration of a...
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MDPI AG
2023-05-01
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| Online Access: | https://www.mdpi.com/2079-9276/12/6/66 |
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| author | Slavomír Podolský Miroslav Variny Tomáš Kurák |
| author_facet | Slavomír Podolský Miroslav Variny Tomáš Kurák |
| author_sort | Slavomír Podolský |
| collection | DOAJ |
| description | A gasification plant may partially replace an industrial thermal plant and hydrogen production plant by polygenerating valuable products (hydrogen, power, steam) from low-value materials. Carbon energy analysis is one way of conceptually evaluating such processes. In this paper, the integration of a heavy residue (HR) gasification plant into a mid-size oil refinery (5 million t per year crude processing rate) is conceptually assessed via the comparison of electricity, natural gas and heavy residue consumption, and CO<sub>2</sub> emissions. The main purpose of the integration is to reduce the consumption of natural gas currently used for hydrogen production at the expense of increased HR consumption and to achieve a reduction in CO<sub>2</sub> emissions. Two case studies with different modes of operation were compared to base case showing that annual reduction of 2280 GWh in natural gas consumption with constant heat and hydrogen production is possible, accompanied with a slight increase in electricity purchase by 28 GWh per year. HR processing in the refinery increases by over 2800 GWh per year. The refinery’s CO<sub>2</sub> emissions increase by more than 20% (up to 350 kt per year) as a result, while, after incorporating external emissions into the balance, a decrease of more than 460 kt CO<sub>2</sub> per year can be achieved. This confirms that the integration of gasification plants within industrial enterprises and clusters has a positive environmental and energy impact and supports the idea of converting low-value material to more valuable products in polygeneration plants. The economics of HR gasifier integration in varying operations under real refinery conditions remain to be explored. |
| first_indexed | 2024-03-11T01:58:26Z |
| format | Article |
| id | doaj.art-e06152a69b60434393bb73c3bc2deaae |
| institution | Directory Open Access Journal |
| issn | 2079-9276 |
| language | English |
| last_indexed | 2024-03-11T01:58:26Z |
| publishDate | 2023-05-01 |
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| spelling | doaj.art-e06152a69b60434393bb73c3bc2deaae2023-11-18T12:28:18ZengMDPI AGResources2079-92762023-05-011266610.3390/resources12060066Carbon-Energy Impact Analysis of Heavy Residue Gasification Plant Integration into Oil RefinerySlavomír Podolský0Miroslav Variny1Tomáš Kurák2Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, SlovakiaDepartment of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, SlovakiaDepartment of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, SlovakiaA gasification plant may partially replace an industrial thermal plant and hydrogen production plant by polygenerating valuable products (hydrogen, power, steam) from low-value materials. Carbon energy analysis is one way of conceptually evaluating such processes. In this paper, the integration of a heavy residue (HR) gasification plant into a mid-size oil refinery (5 million t per year crude processing rate) is conceptually assessed via the comparison of electricity, natural gas and heavy residue consumption, and CO<sub>2</sub> emissions. The main purpose of the integration is to reduce the consumption of natural gas currently used for hydrogen production at the expense of increased HR consumption and to achieve a reduction in CO<sub>2</sub> emissions. Two case studies with different modes of operation were compared to base case showing that annual reduction of 2280 GWh in natural gas consumption with constant heat and hydrogen production is possible, accompanied with a slight increase in electricity purchase by 28 GWh per year. HR processing in the refinery increases by over 2800 GWh per year. The refinery’s CO<sub>2</sub> emissions increase by more than 20% (up to 350 kt per year) as a result, while, after incorporating external emissions into the balance, a decrease of more than 460 kt CO<sub>2</sub> per year can be achieved. This confirms that the integration of gasification plants within industrial enterprises and clusters has a positive environmental and energy impact and supports the idea of converting low-value material to more valuable products in polygeneration plants. The economics of HR gasifier integration in varying operations under real refinery conditions remain to be explored.https://www.mdpi.com/2079-9276/12/6/66byproduct upgradepolygenerationCO<sub>2</sub> emissionshydrogengasification |
| spellingShingle | Slavomír Podolský Miroslav Variny Tomáš Kurák Carbon-Energy Impact Analysis of Heavy Residue Gasification Plant Integration into Oil Refinery Resources byproduct upgrade polygeneration CO<sub>2</sub> emissions hydrogen gasification |
| title | Carbon-Energy Impact Analysis of Heavy Residue Gasification Plant Integration into Oil Refinery |
| title_full | Carbon-Energy Impact Analysis of Heavy Residue Gasification Plant Integration into Oil Refinery |
| title_fullStr | Carbon-Energy Impact Analysis of Heavy Residue Gasification Plant Integration into Oil Refinery |
| title_full_unstemmed | Carbon-Energy Impact Analysis of Heavy Residue Gasification Plant Integration into Oil Refinery |
| title_short | Carbon-Energy Impact Analysis of Heavy Residue Gasification Plant Integration into Oil Refinery |
| title_sort | carbon energy impact analysis of heavy residue gasification plant integration into oil refinery |
| topic | byproduct upgrade polygeneration CO<sub>2</sub> emissions hydrogen gasification |
| url | https://www.mdpi.com/2079-9276/12/6/66 |
| work_keys_str_mv | AT slavomirpodolsky carbonenergyimpactanalysisofheavyresiduegasificationplantintegrationintooilrefinery AT miroslavvariny carbonenergyimpactanalysisofheavyresiduegasificationplantintegrationintooilrefinery AT tomaskurak carbonenergyimpactanalysisofheavyresiduegasificationplantintegrationintooilrefinery |