Microchannel reactor
A technology of microchannel reactor and microchannel reaction, applied in chemical/physical/physicochemical stationary reactors, chemical instruments and methods, production of liquid hydrocarbon mixtures, etc. Problems such as flow distribution and unbalanced alkylation rate can be achieved to reduce the occurrence of side reactions, solve the problem of large equipment size, and improve quality and yield.
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[0060] use as figure 1 The reactor with the structure shown and figure 2 In the alkylation reaction process shown, the bed pressure drop in the microchannel reaction zone is 0.1-1.0 MPa, preferably 0-0.5 MPa. Using isobutane and butene as raw materials, sulfuric acid as catalyst, and propane as refrigerant for alkylation reaction.
[0061]The acid hydrocarbon volume ratio of the sulfuric acid feed to the mixture feed of isobutane and butene is 0.1-5:1, preferably 0.5-3:1. The molar ratio of alkene is 1-50:1, preferably 5-20:1. The molar ratio of isobutane to propane is 1~100:1, preferably 10~30:1, and the reaction pressure is maintained at 0MPa~1.0MPa, preferably 0MPa~0.5MPa. The side reaction is suppressed, the acid consumption is reduced, the selectivity and yield of the reaction process are improved, and the octane number of the alkylated oil is improved at the same time. The residence time of the reaction materials in the reactor is 1-200 min, preferably 10-90 min.
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