At 200C, 20 atm, an n-butane feed rate of 1.0 h 1 , and a 1:1 molar ratio of hydrogen to n-butane, the isobutane yield was about 45 wt. %, which is about 80% of the equilibrium value. The yield of the decomposition products was 2.9 wt. % for electrolytic hydrogen and 4.3 ...
Isomerization of n-butane to isobutane was investigated over H- and Pt- modified MCM-22, ZSM-5 and Beta zeolite catalysts. The acidic properties of catalysts, Pt- modification and modes of catalyst pre-treatment were observed to influence the conversion of n-butane, yield and selectivity to ...
Then, the reactor was purged with nitrogen for 15 min prior to the introduction of n-butane. The reaction products were analyzed in a gas chromatograph with the thermal conductivity detector. Besides isobutane, which was the major product, methane, propane, and pentane were detected. After 1 h...
Normal butane is isomerized to isobutane by means of a catalyst composition consisting essentially of 95 to 99 weight percent fluorosulfuric acid and 1 to 5 weight percent of a protic co-acid selected from the group consisting of hydrogen fluoride, sulfuric acid, trifluoromethanesulfonic acid and...
Deactivation of sulfated-zirconia and H-mordenite catalysts during n-butane and isobutane isomerization Deactivation of the catalysts during n-butane isomerization appears to be caused by the production of coke on the catalyst from straight-chain olefinic ... B K.,Fogash,and,... - 《Applied Cata...
The control of a distillation column with a side reactor is studied for the conversion of n-butane into isobutane for use in the alkylation process. Fresh ... Luyben,L William - 《Industrial & Engineering Chemistry Research》 被引量: 1发表: 2011年 A fluorescent sensor for Zn2+ and NO2 ...
While isobutane is now available in the gases from catalytic cracking, it was necessary during wartime to supplement the supply by isomerization of n-butane over aluminum chloride. 翻译结果2复制译文编辑译文朗读译文返回顶部 While isobutane is now available in the gases from catalytic cracking,it was...
In other words, the carbon atoms are connected to each other in a single, unbranched chain. An example of a straight-chain hydrocarbon is n-butane (C4H10), which has a four-carbon chain. On the other hand, branched-chain hydrocarbons are hydrocarbon molecules that have one or more branches...
However, dealuminated samples were more resistant to the poisoning, and showed a higher selectivity to isobutane. For these samples, the reaction order with respect to n-butane was close to 1 for isobutane and close to 2 for pentanes, and turnover frequency (TOF) was not dependent on acid...
Butane isomerizationCarbenium ionsIso-octane crackingSolid acid catalysisThe competitive isomerization and cracking reactions of branched octanes at 373K on sulfated zirconia were studied in relation with the product distribution expected from bimolecular pathway for n- to isobutane isomerization. The high ...