关键词: 常温, SQ112吸附剂, 异构, 应用

Abstract: This paper describes the principle and process of removing oxygenated contaminants for post-MTBE C4 in the liquid state at normal temperature, and also introduces the industrial application of SQ112 adsorbent and 4A molecular sieve for the purification of post-MTBE C4 in n-butene isomerization to i-butene. Under 0.4～0.8 MPa，single column liquid space velocity 1 h－1，and at normal temperature，dimethyl ether and methanol in post-MTBE C4 could be removed from 50～150 mg/kg to less than 1 mg/kg, and MTBE in post-MTBE C4 could be removed from 50～200 mg/kg to less than 1 mg/kg. After purification, post-MTBE C4 could meet the requirement of isomerization catalysts. SQ112 adsorbent could be regenerated by steam regeneration with stable adsorption capacity and high catalytic activity.

Key words: normal temperature, SQ112 adsorbent, isomerization, application