Purification of reformer streams by catalytic hydrogenation
- BASF Corp., Geismar, LA (United States)
- Krupp Wilputte Corp., Bridgeville, PA (United States)
- BASF AG, Ludwigshafen (Germany)
- Krupp Koppers GmbH, Essen (Germany)
Catalytic Reforming is one of the most important processes to produce high grade motor gasolines. Feedstocks are mainly gasoline and naphtha streams from the crude oil distillation boiling in the range of 212 F to 350 F. By catalytic reforming the octane number of these gasoline components is increased from 40--60 RON to 95--100 RON. Besides isomerization and dehydrocyclization reactions mainly formation of aromatics by dehydrogenation of naphthenes occur. Thus, catalytic reformers within refineries are an important source of BTX--aromatics (benzene, toluene, xylenes). Frequently, high purity aromatics are recovered from these streams using modern extractive distillation or liquid extraction processes, e.g. the Krupp-Koppers MORPHYLANE{reg_sign} process. Aromatics product specifications, notably bromine index and acid wash color, have obligated producers to utilize clay treatment to remove trace impurities of diolefins and/or olefins. The conventional clay treatment is a multiple vessel batch process which periodically requires disposal of the spent clay in a suitable environmental manner. BASF, in close cooperation with Krupp-Koppers, has developed a continuous Selective Catalytic Hydrogenation Process (SCHP) as an alternative to clay treatment which is very efficient, cost effective and environmentally compatible. In the following the main process aspects including the process scheme catalyst and operating conditions is described.
- OSTI ID:
- 403527
- Report Number(s):
- CONF-960356-; TRN: IM9651%%562
- Resource Relation:
- Conference: 1996 National Petroleum Refiners Association annual meeting, San Antonio, TX (United States), 17-19 Mar 1996; Other Information: PBD: 1996
- Country of Publication:
- United States
- Language:
- English
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