A FLOWING SOLVENT REACTOR FOR COAL-LIQUEFACTION WITH DIRECT ELECTRICAL-RESISTANCE HEATING

被引:21
作者
GIBBINS, J [1 ]
KANDIYOTI, R [1 ]
机构
[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT CHEM ENGN,LONDON SW7 2AZ,ENGLAND
关键词
D O I
10.1063/1.1142342
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A flowing solvent reactor for coal liquefaction has been developed, which uses direct electrical resistance heating of the reactor tube wall to achieve rapid, controllable heating. A computerized control system previously developed for a wire-mesh pyrolysis apparatus is used for temperature control; heating rates between 0.1 and 10 K/s, peak temperatures up to 450-degrees-C, and isothermal holding times from 5 to 1600 s have been obtained. Alternating current is used for heating, allowing a simple thyristor bridge to be used for power control. Solvent is fed from a pressurized reservoir at up to 100 bars, obviating the need for a supply pump. Using this apparatus the effects of a variety of parameters on primary coal liquefaction processes can be examined; the design of the system and typical results are presented.
引用
收藏
页码:2234 / 2242
页数:9
相关论文
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