Design of Suspended Bubble Column as Coal Liquefaction Reactor.
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منابع مشابه
Commercial scale slurry bubble column reactor optimization
An in-depth numerical study has been carried out to investigate a high-pressure commercial scale (2–8 meter diameter) slurry bubble column reactor (SBCR). Typical superficial gas velocities are in the range of 0.5–3 m/s, and overall vapor hold-ups are in the range of 0.45–0.85. The study revealed that steady compartmental reaction models do not match plant data when reaction time constants are ...
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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...
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INTRODUCTION A Brief History of Coal Liquefaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Process Overview: What Goes In and What Goes Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Need to Motivate Remaining Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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...
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Bubble columns are gas- liquid contactors that are widely used in chemical and bio- chemical industries. High mixing that result in high heat and mass transfer rates are amongst their advantages. Heat transfer in a bubble column having a bundle of heaters investigated and the variation of heat transfer coefficient with variation in heaters pitch to diameter ratios in a bundle of heaters reporte...
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ژورنال
عنوان ژورنال: Journal of the Japan Institute of Energy
سال: 2000
ISSN: 1882-6121,0916-8753
DOI: 10.3775/jie.79.1159