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METHOD OF INCREASING THE TIME OF STABLE OPERATION OF CATALYST BEFORE THE REACTION OF THE HYDRO-ALKYL 发明申请

2023-02-03 2850 231K 0

专利信息

申请日期 2025-07-11 申请号 RU2011127689
公开(公告)号 RU2011127689A 公开(公告)日 2013-01-20
公开国别 RU 申请人省市代码 全国
申请人 Учреждение Российской академии наук Ордена Трудового Красного Знамени Институт нефтехимического синтеза им А В Топчиева РАН (ИНХС РАН); Открытое акционерное общество "Электрогорский институт нефтепереработки" (ОАО "ЭлИНП")
简介 FIELD : chemistry.SUBSTANCE : invention relates to catalytic processes for producing cumene. Described is a method of prolonging stable operation of a catalyst, which contains a hydrogenating component and an alkylating component, in a reaction for producing cumene by hydroalkylation of benzene with acetone, involving layer by layer arrangement of the hydrogenating and alkylating components in the catalyst, wherein the hydrogenating component is placed first on the path for feeding material, the hydrogenating component being copper chromite and/or copper oxide, which is promoted by metals selected from : manganese, gallium, chromium, rare-earth metals, with weight ratio of copper to promoter metals equal to (4.0-6.0) : 1; the alkylating component is placed second on the path for feeding material, the alkylating agent being micro-mesoporous dealuminated MOR or BEA or FAU, wherein the amount of the hydrogenating component in the catalyst is equal to 15-35 wt % of the total amount of the catalyst. Described is a method of producing cumene by hydroalkylation of benzene with acetone, which is characterised by that hydroalkylation is carried out in a flow reactor with a fixed catalyst bed at 150-250°C, mass flow rate of feeding material of 0.3-7 h, molar ratio of benzene to acetone of 4 : 1-9 : 1, molar ratio of hydrogen to acetone of 1 : 1-10 : 1, and pressure of 0.1-3 MPa, using the catalyst described above.EFFECT : longer time for stable operation of the catalyst.5 cl, 1 tbl, 19 ex


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