Two-stage coal liquefaction process with interstage guard bed
An improved coal liquefaction process is disclosed wherein subdivided coal is substantially dissolved in a process-derived solvent in the presence of added hydrogen, thereby forming a mixture of dissolved coal, solvent and insoluble solids, and said mixture is passed through a guard bed of solid por...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
11.08.1981
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Subjects | |
Online Access | Get full text |
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Summary: | An improved coal liquefaction process is disclosed wherein subdivided coal is substantially dissolved in a process-derived solvent in the presence of added hydrogen, thereby forming a mixture of dissolved coal, solvent and insoluble solids, and said mixture is passed through a guard bed of solid porous contact material, such as alumina, in the presence of hydrogen, to deposit titanium, iron and calcium from the mixture prior to hydrocracking. |
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Bibliography: | Application Number: US19780943586 |