METHOD FOR PRODUCING GASOLINE BLENDED COMPONENT WITH HIGH OCTANE NUMBER

摘要

The present invention relates to a method for producing a gasoline blended component with a high octane number, comprising: raw materials of mixed C4-C8 alkane and C4 alkene entering an isomerization reaction device, and conducting an isomerization reaction in the presence of hydrogen with a catalytic reaction of an isomerization catalyst; an isomerization product generated after reaction flowing into a hydrogen separation device; mixing hydrogen obtained by separation and newly-added flesh hydrogen and then returning the mixed hydrogen to the isomerization reaction device; liquid hydrocarbon obtained by separation and the raw material heterogeneous C4 alkene entering an alkylation device; an alkylation product generated due to catalysis of an alkylation catalyst flowing into an alkylation catalyst recycling device, and C4-C6 light hydrocarbon, catalyst, and C8-C12 alkylation product streams being obtained by separation; the C4-C6 light hydrocarbon stream obtained by separation being exported as fuel gas or being recycled after separation; and one part of the catalyst steam obtained by separation being returned to the alkylation device, and the other part being discharged outside a boundary region. The method expands the source range of raw materials, and reduces the production cost. The octane number of the obtained alkylated oil reaches 91.5.