Improvement in coal liquefaction solvent quality by dewaxing
نویسندگان
چکیده
منابع مشابه
Kinetics of Coal Liquefaction
Information on t h e r a t e s o f coa l d i s s o l u t i o n which i s needed i n t h e design o f r e a c t o r s i n a c o a l l i q u e f a c t i o n p l a n t has been very l i m i t e d ; t h e r e f o r e , mcthods a r e needed by which d i s s o l u t i o n r a t e d a t a can be ex t r apo la t ed t o o t h e r o p e r a t i o n cond i t ions . In t h i s s e c t i o n , t h e r a t e...
متن کاملReaction Engineering of Coal Liquefaction
INTRODUCTION A Brief History of Coal Liquefaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Process Overview: What Goes In and What Goes Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Need to Motivate Remaining Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Effects of the recycle solvent hydrotreatment on oil yield of direct coal liquefaction were carried out in the 0.18 t/day direct coal liquefaction bench support unit of National Engineering Laboratory for Direct Coal Liquefaction (China). Results showed that the hydrogen-donating ability of the hydrogenated recycle solvent improved and the hydrogen consumption of solvent hydrotreatment was incr...
متن کاملReaction Engineering of Direct Coal Liquefaction
Direct coal liquefaction has been studied and practiced since the 1930s. It was used in Germany during World War II to produce synthetic fuels when there was no oil allowed into the country. Since then, it has been studied in the United States and many different technologies have been investigated. Since the US is rich in coal resources, this is one way to be energy independent. Most of the dev...
متن کاملCoal Desulfurization by Solvent Leaching Methods
Coal desulfurization prior to usage is a preprocessing in order to achieve clean fuel and reduce environmental impacts such as acid rain. Desulfurization of Lakhra (Pakistan) coal was conducted with different solvents. Coal was leached with different solvents like hot water, H2O2/H2SO4 and HNO3. It was found that the effects of the leaching temperature, agitation time and particle size on the r...
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ژورنال
عنوان ژورنال: Fuel
سال: 1987
ISSN: 0016-2361
DOI: 10.1016/0016-2361(87)90275-4