Gas: heating and illuminating – Processes – Fuel mixtures
Patent
1988-05-26
1990-05-22
Woodard, Joye L.
Gas: heating and illuminating
Processes
Fuel mixtures
48203, 48210, 55 73, 55 79, 201 25, 201 16, 423230, C10J 362
Patent
active
049274309
ABSTRACT:
A method of generating a de-sulphurized volatile matter and a relatively low Btu gas includes the initial step of pyrolyzing coal to produce volatile matter and a char. The volatile matter is fed to a first de-sulphurizer containing a de-sulphurizing agent to remove sulphur therefrom. At the same time, the char is gasified to produce a relatively low Btu gas. The low Btu gas is fed to a second de-sulphurizer containing the de-sulphurizing agent to remove sulphur therefrom. A regenerator is provided for removing sulphur from the de-sulphurizing agent. Portions of the de-sulphurizing agent are moved among the first de-sulphurizer, the second de-sulphurizer, and the regenerator such that the regenerator regenerates the de-sulphurizing agent. Preferably, the portions of the de-sulphurizing agent are moved from the second de-sulphurizer to the first de-sulphurizer, from the first de-sulphurizer to the regenerator, and from the regenerator to the second de-sulphurizer.
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Electric Power Research Institute Report, AP-3109, Project 2207, "Coal Gasification Systems: A Guide to Status, Applications, and Economics", Jun. 1983, pp. (5-153)-(5-156).
U.S. Dept. of Energy, Progress Report One, Jan. 1988, "Assessment of Costs and Benefits of Flexible and Alternative Fuel Use in the U.S. Transportation Sector", pp. 10 and 11.
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