Mild coal pretreatment to improve liquefaction reactivity. Quarterly technical progress report, June--August 1991

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This report describes work completed during the fourth quarter of a three year project to study the effects of mild chemical pretreatment on coal dissolution reactivity during low severity liquefaction or coal/oil coprocessing. The overall objective of this research is to elucidate changes in the chemical and physical structure of coal by pretreating with methanol or other simple organic solvent and a trace amount of hydrochloric acid and measure the influence of these changes on coal dissolution reactivity. This work is part of a larger effort to develop a new coal liquefaction or coal/oil coprocessing scheme consisting of three main … continued below

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26 p.

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Miller, R. L. 1991-09~.

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This report describes work completed during the fourth quarter of a three year project to study the effects of mild chemical pretreatment on coal dissolution reactivity during low severity liquefaction or coal/oil coprocessing. The overall objective of this research is to elucidate changes in the chemical and physical structure of coal by pretreating with methanol or other simple organic solvent and a trace amount of hydrochloric acid and measure the influence of these changes on coal dissolution reactivity. This work is part of a larger effort to develop a new coal liquefaction or coal/oil coprocessing scheme consisting of three main process steps: (1) mile pretreatment of the feed coal to enhance dissolution reactivity and dry the coal, (2) low severity thermal dissolution of the pretreated coal to obtain a very reactive coal-derived residual material amenable to upgrading, and (3) catalytic upgrading of the residual products to distillate liquids.

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26 p.

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OSTI; NTIS; GPO Dep.

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  • 1991-09~

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  • Nov. 3, 2018, 11:47 a.m.

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  • Dec. 12, 2024, 12:25 a.m.

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Miller, R. L. Mild coal pretreatment to improve liquefaction reactivity. Quarterly technical progress report, June--August 1991, report, 1991-09~; Golden, Colorado. (https://digital.library.unt.edu/ark:/67531/metadc1312260/: accessed April 13, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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