Production of High-Btu Gas From Coal

Linden, H.R.; Bodle, W. W.; Lee, B. S.; Vyas, K.C.

doi:10.1146/annurev.eg.01.110176.000433

Cited by 8 publications

(3 citation statements)

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“…(1) WGS activity (CO conversion) versus space velocity (2) Clean stability test for the WGS reaction over HTS -Catalyst (3) Effect of KCl concentrations on the stability of HTS -WGS catalyst (4) Effect of NaCl concentrations on the stability of HTS -WGS catalyst (1) Effect of GHSV on WGS activity (CO conversion) over FeCr -HTS catalyst GHSV (hr …”

Section: Year 2009 Results After Correctionmentioning

confidence: 99%

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Sensitivity of Fischer-Tropsch Synthesis and Water-Gas Shift Catalysts to Poisons from High-Temperature High-Pressure Entrained-Flow (EF) Oxygen-Blown Gasifier Gasification of Coal/Biomass Mixtures

Davis¹,

Jacobs²,

Ma³

et al. 2011

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The successful adaptation of conventional cobalt and iron-based Fischer-Tropsch synthesis catalysts for use in converting biomass-derived syngas hinges in part on understanding their susceptibility to byproducts produced during the biomass gasification process. With the possibility that oil production will peak in the near future, and due to concerns in maintaining energy security, the conversion of biomass-derived syngas and syngas derived from coal/biomass blends to Fischer-Tropsch synthesis products to liquid fuels may provide a sustainable path forward, especially considering if carbon sequestration can be successfully demonstrated.However, one current drawback is that it is unknown whether conventional catalysts based on iron and cobalt will be suitable without proper development because, while ash, sulfur compounds, traces of metals, halide compounds, and nitrogen-containing chemicals will likely be lower in concentration in syngas derived from mixtures of coal and biomass (i.e., using an entrained-flow oxygen-blown gasifier) than solely from coal, other byproducts may be present in higher concentrations. The current project examines the impact of a number of potential byproducts of concern from the gasification of biomass process, including compounds containing alkali chemicals like the chlorides of sodium and potassium.In the second year, researchers from the University of Kentucky Center for Applied Energy Research (UK-CAER) continued the project by evaluating the sensitivity of a commercial iron-chromia high temperature water-gas shift catalyst (WGS) to a number of different compounds, including KHCO 3 , NaHCO 3 , HCl, HBr, HF, H 2 S, NH 3 , and a combination of H 2 S and NH 3 . Cobalt and iron-based Fischer-Tropsch synthesis (FT) catalysts were also subjected to a number of the same compounds in order to evaluate their sensitivities.

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Section: Year 2009 Results After Correctionmentioning

confidence: 99%

“…However, the catalyst was activated in-situ in 2.0 Nl/g-cat/h CO at 270 o C and 1 atm for 24 h. During testing, the syngas H 2 /CO ratio was approximately 0.77 [1 ]. The temperature was 270 o C and the pressure was 175 psig.…”

Section: Reactor Testingmentioning

confidence: 99%

Sensitivity of Fischer-Tropsch Synthesis and Water-Gas Shift Catalysts to Poisons from High-Temperature High-Pressure Entrained-Flow (EF) Oxygen-Blown Gasifier Gasification of Coal/Biomass Mixtures

Davis¹,

Jacobs²,

Ma³

et al. 2011

View full text Add to dashboard Cite

show abstract

“…However, the catalyst was activated in-situ in 2.0 Nl/g-cat/h CO at 270 o C and 1 atm for 24 h. During testing, the syngas H 2 /CO ratio was approximately 0.77 [2]. The temperature was 270 o C and the pressure was 175 psig.…”

Section: Hydrogen Chemisorption With Pulse Reoxidationmentioning

confidence: 99%

Sensitivity of Fischer-Tropsch Synthesis and Water-Gas Shift Catalystes to Poisons form High-Temperature High-Pressure Entrained-Flow (EF) Oxygen-Blown Gasifier Gasification of Coal/Biomass Mixtures

Davis¹,

Jacobs²,

Ma³

et al. 2009

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There has been a recent shift in interest in converting not only natural gas and coal derived syngas to Fischer-Tropsch synthesis products, but also converting biomass-derived syngas, as well as syngas derived from coal and biomass mixtures. As such, conventional catalysts based on iron and cobalt may not be suitable without proper development. This is because, while ash, sulfur compounds, traces of metals, halide compounds, and nitrogencontaining chemicals will likely be lower in concentration in syngas derived from mixtures of coal and biomass (i.e., using entrained-flow oxygen-blown gasifier gasification gasification) than solely from coal, other compounds may actually be increased. Of particular concern are compounds containing alkali chemicals like the chlorides of sodium and potassium.In the first year, University of Kentucky Center for Applied Energy Research (UK-CAER) researchers completed a number of tasks aimed at evaluating the sensitivity of cobalt and iron-based Fischer-Tropsch synthesis (FT) catalysts and a commercial iron-chromia high temperature water-gas shift catalyst (WGS) to alkali halides. This included the preparation of large batches of 0.5%Pt-25%Co/Al 2 O 3 and 100Fe: 5.1Si: 3.0K: 2.0Cu (high alpha) catalysts that were split up among the four different entities participating in the overall project; the testing of the catalysts under clean FT and WGS conditions; the testing of the Fe-Cr WGS catalyst under conditions of co-feeding NaCl and KCl; and the construction and start-up of the continuously stirred tank reactors (CSTRs) for poisoning investigations.

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Lignite and Brown Coal

Vorres¹

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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Lignite and brown coal are intermediate between peat and bituminous coal. These coals are high in moisture content, low in density, and frequently low in sulfur, and tend toward spontaneous ignition in air. The brown coals are geologically younger than the firmer, fibrous lignite. Deposits, from 2–60 million years old, are found mainly in Russia, central Europe, Australia, and the United States. Proved reserves, about 300 billion metric tons, represent close to a 290 year supply at 1990 production rates. Most lignite and brown coal is burned for electric power generation and mines are usually close to utilization sites for both economic and safety reasons. Lignite briquettes are also used for domestic heating in various parts of the world. Processes for lignite and brown coal conversion to synthesis gas for feedstock utilization, to both gaseous and liquid fuels, and to materials for use as soil conditioners, wax, and so on, are described.

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Production of High-Btu Gas From Coal

Abstract: Co ntrol ling Company( s) � A. HIGH-Btu Gas PROJECTS El Paso Natural Gas Co, WESCO, Texas Easte rn Transmission Corp •• and Pacific Lighting Co rp. (Utah International Co rp. ) Panhandle Eastern Pipe Line Co, (Peabody Coal Co, ) Colorado Interstate Gas COl"p. (Westmoreland Coal Co, )

Cited by 8 publications

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Sensitivity of Fischer-Tropsch Synthesis and Water-Gas Shift Catalysts to Poisons from High-Temperature High-Pressure Entrained-Flow (EF) Oxygen-Blown Gasifier Gasification of Coal/Biomass Mixtures

Sensitivity of Fischer-Tropsch Synthesis and Water-Gas Shift Catalysts to Poisons from High-Temperature High-Pressure Entrained-Flow (EF) Oxygen-Blown Gasifier Gasification of Coal/Biomass Mixtures

Sensitivity of Fischer-Tropsch Synthesis and Water-Gas Shift Catalystes to Poisons form High-Temperature High-Pressure Entrained-Flow (EF) Oxygen-Blown Gasifier Gasification of Coal/Biomass Mixtures

Lignite and Brown Coal

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