Coal gasification by the coal/CH4-ZnO-Zn-H2O solar energy conversion system

M. Tsuji; Y. Wada; Y. Tamaura; A. Steinfeld; P. Kuhn; R. Palumbo

Coal gasification by the coal/CH₄-ZnO-Zn-H₂O solar energy conversion system

M. Tsuji, Y. Wada, Y. Tamaura, A. Steinfeld, P. Kuhn, R. Palumbo

Mechanical & Industrial Engineering

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Abstract

The coal/CH₄-ZnO-Zn-H₂O system has been proposed for the 2-step efficient chemical conversion system of the fossil fuels using a solar energy as the process heat and fossil fuel/ZnO redox system. The overall reaction is represented by CH_x(coal) + CH4 + 2H₂O(g) = 2CO + (4 + x/2)H₂ The complete coal gasification to H₂/CO gas mixture with the coal/ZnO redox system could be demonstrated with zero CO₂ emissions at 1000-1100°C, eliminating the need to separate, while the steam gasification efficiency of coal remained 47% on a carbon basis. Zn-H₂O reaction was conducted to generate H₂ gas successfully. In the overall reaction, the product gas of the H₂/CO mole ratio 2 could be obtained and can be directly used for synthesis of methanol and other chemicals.

Original language	English (US)
Pages (from-to)	1315-1320
Number of pages	6
Journal	Energy Conversion and Management
Volume	37
Issue number	6-8
State	Published - Jan 1 1996

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title = "Coal gasification by the coal/CH4-ZnO-Zn-H2O solar energy conversion system",

abstract = "The coal/CH4-ZnO-Zn-H2O system has been proposed for the 2-step efficient chemical conversion system of the fossil fuels using a solar energy as the process heat and fossil fuel/ZnO redox system. The overall reaction is represented by CHx(coal) + CH4 + 2H2O(g) = 2CO + (4 + x/2)H2 The complete coal gasification to H2/CO gas mixture with the coal/ZnO redox system could be demonstrated with zero CO2 emissions at 1000-1100°C, eliminating the need to separate, while the steam gasification efficiency of coal remained 47% on a carbon basis. Zn-H2O reaction was conducted to generate H2 gas successfully. In the overall reaction, the product gas of the H2/CO mole ratio 2 could be obtained and can be directly used for synthesis of methanol and other chemicals.",

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TY - JOUR

T1 - Coal gasification by the coal/CH4-ZnO-Zn-H2O solar energy conversion system

AU - Tsuji, M.

AU - Wada, Y.

AU - Tamaura, Y.

AU - Steinfeld, A.

AU - Kuhn, P.

AU - Palumbo, R.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - The coal/CH4-ZnO-Zn-H2O system has been proposed for the 2-step efficient chemical conversion system of the fossil fuels using a solar energy as the process heat and fossil fuel/ZnO redox system. The overall reaction is represented by CHx(coal) + CH4 + 2H2O(g) = 2CO + (4 + x/2)H2 The complete coal gasification to H2/CO gas mixture with the coal/ZnO redox system could be demonstrated with zero CO2 emissions at 1000-1100°C, eliminating the need to separate, while the steam gasification efficiency of coal remained 47% on a carbon basis. Zn-H2O reaction was conducted to generate H2 gas successfully. In the overall reaction, the product gas of the H2/CO mole ratio 2 could be obtained and can be directly used for synthesis of methanol and other chemicals.

AB - The coal/CH4-ZnO-Zn-H2O system has been proposed for the 2-step efficient chemical conversion system of the fossil fuels using a solar energy as the process heat and fossil fuel/ZnO redox system. The overall reaction is represented by CHx(coal) + CH4 + 2H2O(g) = 2CO + (4 + x/2)H2 The complete coal gasification to H2/CO gas mixture with the coal/ZnO redox system could be demonstrated with zero CO2 emissions at 1000-1100°C, eliminating the need to separate, while the steam gasification efficiency of coal remained 47% on a carbon basis. Zn-H2O reaction was conducted to generate H2 gas successfully. In the overall reaction, the product gas of the H2/CO mole ratio 2 could be obtained and can be directly used for synthesis of methanol and other chemicals.

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JO - Energy Conversion and Management

JF - Energy Conversion and Management

SN - 0196-8904

IS - 6-8

ER -

Coal gasification by the coal/CH₄-ZnO-Zn-H₂O solar energy conversion system

Abstract

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