Production of high-octane, unleaded motor fuel |
|||||||
| 申请号 | US3787313D | 申请日 | 1972-11-21 | 公开(公告)号 | US3787313A | 公开(公告)日 | 1974-01-22 |
| 申请人 | UNIVERSAL OIL PROD CO; | 发明人 | POLLITZER E; | ||||
| 摘要 | A naphtha boiling range charge stock is converted into a motor fuel which does not necessitate the incorporation of metalcontaining additives otherwise required for suitable anti-knock characteristics. The process involves a combination of hydrocracking and catalytic reforming, and is effected in a manner which significantly decreases the quantity of methane and ethane produced. The novel form of hydrocracking results in a product predominantly comprising naphthenic hydrocarbons and highly branched paraffins, the latter being predominantly isobutane. Following separation to recover the isobutane, catalytic reforming is utilized to dehydrogenate the naphthenic compounds to produce an aromatic concentrate. | ||||||
| 权利要求 | 2. The process of claim 1 further characterized in that said reformed product effluent is separated, in a third separation zone to provide a saturated paraffinic stream and to recover said aromatic concentrate. 3. The process of claim 2 further characterized in that said paraffinic stream is reacted with hydrogen in said hydrocracking reaction zone. 4. The process of claim 1 further characterized in that said hydrocracked product effluent is separated to provide a pentane/hexane concentrate and a propane/butane concentrate. 5. The process of claim 4 further characterized in that said pentane/hexane concentrate is reacted with hydrogen in a hydroisomerization reaction zone, at isomerization conditions selected to produce pentane and hexane isomers. 6. The process of claim 1 further characterized in that said hydrocracking catalytic composite comprises from about 0.01 percent to about 2.0 percent by weight of a platinum or palladium component. 7. The process of claim 1 further characterized in that said gem-polyhalo compound is A Friedel-Crafts metal halide. 8. The process of claim 1 further characterized in that said hydrocracking conditions include a maximum catalyst bed temperature of from 300*F. to about 600*F. and a pressure in the range of about 200 to about 500 psig. 9. The process of claim 1 further characterized in that said isobutane is reacted with an olefinic hydrocarbon, in an alkylation reaction zone, at alkylation conditions selected to produce a normally liquid alkylated hydrocarbon stream. 10. The process of claim 2 further characterized in that said third separation zone is a solvent extraction zone. |
||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈