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Production of hydrogen from coal and petroleum coke: technical and economic perspectives

1986; Elsevier BV; Volume: 11; Issue: 12 Linguagem: Inglês

10.1016/0360-3199(86)90174-6

1879-3487

Y.K. Ahn, Werner K. Fischer,

Coal and Coke Industries Research

This paper examines the technical and economic feasibility of producing hydrogen at a refinery from coal and petroleum coke via gasification-shift-purification steps. A number of potential gasifiers were analyzed for their applicability to gasify a high sulfur bituminous coal and a high sulfur delayed coke. A pressurized entrained bed process was selected from the analysis for production of 50 MM SCFD hydrogen. A conceptual design was performed to develop overall materials and energy balances and major equipment lists for use in the conceptual cost estimates. Gilbert/Commonwealth's proprietary project analysis model was used to calculate the product costs. Sensitivity of the product costs with the coke and coal costs was also analyzed and compared with those from natural gas reforming. It was found that coke is highly competitive with natural gas for the production of hydrogen.