JOINT PRODUCTION OF MTBE AND ALKYLATE Russian patent published in 2021 - IPC C07C41/06 C07C2/56 C07C7/04 C07C41/42 C07C43/04 C07C9/00 C07C5/327 

FIELD: chemical engineering.
SUBSTANCE: present invention relates to options for the joint production of a tert-butyl ether and alkylate compound and to a device for the joint production of a tert-butyl ether and alkylate compound. One of the variants of the method comprises the following steps: supplying a flow of hydrocarbon raw material containing C₄ hydrocarbons to a dehydration plant for producing a dehydration product containing C₄ olefins; supplying a dehydration product to the unit of tert-butyl ether to produce a mixed flow containing C₄ olefins and a tert-butyl ether compound; to separate the mixed flow to ensure the flow of the tert-butyl ether product and the flow of the top product of the fractionation column with olefins; flow of the top product of the fractionation column to the alkylation plant to obtain the flow of the alkylation product containing alkylate; feeding the alkylation product stream into the deisobutanization column to generate the flow of the upper product of the deisobutanization column and the flow of the lower product of the deisobutanization column; feeding the flow of the lower product of the deisobutanization column into the debutanization column to generate the flow of the upper product of the debutanization column and alkylate; feeding the first part of the flow of the upper product of the debutanization column into the isomerization plant to create the flow of the isomerizate; and the flow of isomerizate into the deisobutanization column.

EFFECT: proposed variants of the method and the device enable processing C₄ raw materials by modifying the product range as the product requirements change.

8 cl, 2 dwg, 1 tbl