Method for reducing solid slag content of ionic liquid alkylation device

• Main Authors: WANG JIUYING, ZHANG YONGLIANG, SHI SHENGCAI, LUO JIAN, ZHANG HAIFENG, SONG DAYONG, XU LUPENG, ZHAO FUYI, WU WEI, ZHANG ZHIPING, JIANG WENZHI
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2023
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; SEPARATION; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a method for reducing the solid slag content of an ionic liquid alkylation device, which is characterized by comprising the following steps: reducing the impurity content of reaction raw materials so as to reduce the content of solid slag generated by the reaction of impurities and an ionic liquid catalyst; the solubility of the solid active component added in the ionic liquid regeneration process is improved so as to reduce the content of solid residues formed by the undissolved part of the solid active component; the problem that the solid slag content cannot be reduced fundamentally in an existing solid slag treatment mode is solved. 本发明公开了一种降低离子液烷基化装置固渣含量的方法，其特征在于，包括：降低反应原料的杂质含量以减少所述杂质与离子液催化剂反应产生固渣的含量；提高离子液再生过程中加入的固体活性组分的溶解度以减少其未溶解部分成为固渣的含量；解决现有固渣处理方式不能从根本上降低固渣含量的问题。