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Recent Advances in Industrial Sulfur Tolerant Water Gas Shift Catalysts for Syngas Hydrogen Enrichment: Application of Lean (Low) Steam/Gas Ratio

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State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Changping District, Beijing 102249, China
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Industrial Engineering Laboratory of Sulfur Tolerant Water Gas Shift Catalyst Subjected to China Petroleum and Chemical Industry Federation (CPCIF), Qingdao Lianxin Catalyst Company, Yunxi Road, Jiaozhou 266300, Shandong Province, China
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Materials Research Institute, KACST, PO Box 6086, Riyadh 11442, Saudi Arabia
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State Key Laboratory of Advanced Materials for Smart Sensing, General Research Institute for Nonferrous Metals, 11 Xingkedong Street, Huairou District, Beijing 101402, China
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KACST-Oxford Petrochemical Research Centre, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, UK
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Authors to whom correspondence should be addressed.
Catalysts 2019, 9(9), 772; https://doi.org/10.3390/catal9090772
Received: 16 July 2019 / Revised: 29 August 2019 / Accepted: 10 September 2019 / Published: 14 September 2019
(This article belongs to the Special Issue Catalysts for Syngas Production)
A novel sulfur tolerant water gas shift (SWGS) catalyst has been developed for the applications under lean (low) steam/gas ratio conditions, which has been extensively used for H2/CO adjustment of syngas and H2 enrichment in the world since 2000s with safer operation and lower steam consumption. Technology design and catalyst performances under different lean steam/gas conditions were comprehensively reported. Industrial data were collected from several large scale running plants with a variety of served catalysts characterized and precisely re-examined in the laboratory. It is shown that the developed Mo–Co/alkali/Al2O3 SWGS catalyst can operate very steadily even with the steam/gas ratio as low as 0.2–0.3, and the main deactivation factors are accidental caking, sintering, as well as poisoning impurities, such as As or Cl. The adoption of lean steam/gas SWGS catalyst can significantly improve the plant efficiency & safety and remarkably reduce the actual steam consumption for H2 production, which can decrease CO2 emission correspondingly. The work helps to evaluate how specially designed SWGS catalysts performed under applied lean steam/gas conditions, providing important references for researchers and industry. View Full-Text
Keywords: Sulfur tolerant water gas shift catalyst; steam/gas ratio; Mo–Co/alkali/Al2O3 catalyst; catalyst deactivation; syngas; H2 production Sulfur tolerant water gas shift catalyst; steam/gas ratio; Mo–Co/alkali/Al2O3 catalyst; catalyst deactivation; syngas; H2 production
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MDPI and ACS Style

Liu, B.; Zhao, L.; Wu, Z.; Zhang, J.; Zong, Q.; Almegren, H.; Wei, F.; Zhang, X.; Zhao, Z.; Gao, J.; Xiao, T. Recent Advances in Industrial Sulfur Tolerant Water Gas Shift Catalysts for Syngas Hydrogen Enrichment: Application of Lean (Low) Steam/Gas Ratio. Catalysts 2019, 9, 772.

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