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Highly selective catalyst and method of isomerization of C4amp;#x2014;C7 paraffin hydrocarbons
Highly selective catalyst and method of isomerization of C4amp;#x2014;C7 paraffin hydrocarbons
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机译:C4 C7石蜡烃的高度选择性催化剂和异构化方法
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摘要
The invention relates to isomerization catalysts and can be used in the petroleum processing and petrochemical industry. The catalyst contains sulfated zirconium oxide and a binder—aluminum oxide in a ratio of ZrO2/SO4 to Al2O3 from 70 to 30 to 90 to 10, as well as promoter, a group II metal, Ca, in a quantity ranging from 0.01 to 1 wt % of the weight of the catalyst. The catalyst also contains platinum and/or palladium in a quantity ranging from 0.1 to 0.45 wt % of the metal. Isomerization of C4-C7 paraffinic hydrocarbons in the presence of hydrogen at a temperature of 110-200° C., a pressure of 1-5 MPa, a hydrogen:hydrocarbon ratio of 0.5-4, and a feedstock space velocity of 0.5-4 h−1 is carried out on a catalyst having the claimed composition. The proposed catalyst offers an enhanced degree of isomerization, improved selectivity of the process, and increased strength of the granules.
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