Process for making low-sulfur and low-ash fuels

Details Process for making low-sulfur and low-ash fuels Process for making low-sulfur and low-ash fuels

C - Chemistry, Metallurgy

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C10L 5/00 (2006.01) C10B 53/08 (2006.01) C10G 1/00 (2006.01) C10G 1/04 (2006.01) C10G 1/06 (2006.01) C10L 9/02 (2006.01)

Patent

CA 1052719

PROCESS FOR MAKING LOW-SULFUR AND LOW-ASH FUELS . . ABSTRACT OF THE DISCLOSURE Low-sulfur and low-ash gaseous, liquid and solid fuels are made from coal by a process which first subjects the coal to solvent extraction and hydrotreatment under hydrodesul- furizing conditions in a coal liquefaction zone to reduce the organic sulfur content of the coal. The effluent is divided into a low-solids product which contains most of the extract and a high-solids product which contains most of the remaining inorganic sulfur and other mineral matter. The low-solids product stream which contains extract and solvent is subjected to a forming step to yield low-ash and low-sulfur pellets. The high-solids product stream is subjected to gasification to yield hydrogen for use in the liquefaction step. The process is particularly adapted to supply the energy needs of a steel plant, including the required coke.

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