公开(公告)号：US3574065A

公开(公告)日：1971-04-06

申请号：US3574065D

申请日：1969-08-05

申请人： FMC CORP

发明人： EDDINGER RALPH TRACY ,  SEGLIN LEONARD ,  JONES JOHN FREDERICK JR

IPC分类号： C10B49/22 ,  C10B49/10

CPC分类号： C10B49/22

摘要： A PROCESS OF PYROLYZING COAL, BY HEATING IT IN A FIRST STAGE FLUIDIZED BED IN THE ABSENCE OF ADDED OXYGEN AND VAPORS FROM COAL PYROLYSIS CONTAINING MATERIAL CONDENSABLE AS OILY LIQUID, AT A TEMPERATURE BELOW THE FUSION TEMPERATURE, BUT SUFFICIENTLY HIGH TO REMOVE SOME VOLATILES FROM THE DRY COAL UNTIL ABOUT 1-10% OF THE DRY COAL ARE REMOVED OVERHEAD AS VOLATILES; IN AT LEAST A SECOND DEVOLATIZING STAGE, PASSING THE THUS TREATED COAL INTO AT LEAST ONE OTHER FLUIDIZED BED AT A TEMPERATURE ABOVE THAT OF THE FIRST BED AND BELOW THE FUSION POINT OF THE SOLIDS FED TO THAT STAGE, IN THE ABSENCE OF OXYGEN FOR A TIME SUFFICIENT TO NEARLY REMOVE ALL OF THE VOLATILES FROM THE COAL CONDENSABLE TO OILY LIQUIDS; DIVIDING THE NEARLY DEVOLATILIZED CHAR INTO A PRODUCT STREAM, A RECYCLE STREAM AND A COMBUSTION STREAM; COMPLETELY BURNING THE COMBUSTION STREAM, ENTRAINING THE RECYCLE STREAM IN THE HOT GASES FROM THE COMBUSTION STREAM, SEPARATING THE ENTRAINED RECYCLE CHAR FROM THE HOT GASES, AND RECIRCULATING THE HEATED RECYCLE STREAM INTO THE FINAL DEVOLATIZING STAGE, AND RECOVERING THE CONDENSABLES FROM THE OVERHEADS FROM THE FIRST STAGE AND ALL OF THE DEVOLATILIZING STAGES.

公开(公告)号：US3453202A

公开(公告)日：1969-07-01

申请号：US3453202D

申请日：1966-11-28

申请人： FMC CORP

发明人： FRIEDMAN LOUIS D ,  EDDINGER RALPH TRACY

IPC分类号： C10G1/08 ,  C10G49/00 ,  C10G65/12 ,  C10G23/02 ,  C10C1/00 ,  C10G1/06

CPC分类号： C10G49/007 ,  C10G1/08 ,  C10G65/12