Coal gasification in a process development unit
Journal Article
·
· Energy Prog.; (United States)
OSTI ID:6477590
Results obtained from operation of a 40kg/h Process Development Unit (PDU) of the Exxon Catalytic Coal Gasification (CCG) process are reported. The unit was operated at commercial design conditions feeding bituminous Illinois No. 6 coal catalyzed with KOH. All reactions necessary to convert coal to methane and CO/sub 2/, the major reaction products, are carried out in a single reactor. Alkali metal catalysts increase the rate of these reactions so that the process can be carried out at 700/sup 0/C, considerably lower than usual coal gasification temperature of 925/sup 0/C. The PDU includes complete facilities for product gas separation, syngas recycle, and catalyst recovery and is completely automated with a programmable controller for sequencing and emergency shutdown operations. Long uninterrupted runs of up to 33 days have been achieved without buildup of solid deposits in the gasifier. Agglomeration and density problems in the gasifier have been controlled by increasing feedline velocities and preoxidizing the feed coal. 12 references. (BLM)
- Research Organization:
- Exxon Research and Engineering Co., Baytown, TX
- OSTI ID:
- 6477590
- Journal Information:
- Energy Prog.; (United States), Journal Name: Energy Prog.; (United States) Vol. 1:1-4; ISSN ENPGD
- Country of Publication:
- United States
- Language:
- English
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