石油煉製工業一直利用濃硫酸或氫氟酸觸媒使異丁烷和來自流體化觸媒裂解工場的輕質烯烴反應以製造烷化油。由於此等觸媒具有腐蝕設備、潛在危害和環境污染的缺點,人們設法以其他觸媒取代液體酸為目標,其中包括觸媒製造廠家和製程專利公司,試圖以不同觸媒的新技術來生產烷化油以便配合新配方汽油的需求。 過去20年來,很多研發人員或研究團隊曾做了詳細的探討,以便在固體酸觸媒的研究和應用上佔有一席之地。經過多方努力,期刊和雜誌上已發表了很多文章,也有數種技術已達試驗工場試驗階段,甚至更有廠商宣稱已有烷化新技術即可商業化了。 根據過去研發人員的經驗和作者的綜合看法,本文試圖報導固體酸的研究成果,並對日後異丁烷和烯經烷化反應研究提出個人的意見供參考。
Refining processes with concentrated sulfuric acid or hydrogen fluoride as catalyst are currently being used for the manufacture of alkylation gasoline from isobutane and light olefins from FCCU. Due to the corrosive, potentially hazardous and environment pollution detriments, replacement of the liquid acid catalyst is an important target. A number of researchers, catalyst manufactures and process licensors are working on alternative catalysts for refinery alkylation units to employ new solid acid technologies to meet the requirements of reformulated gasoline. In the past two decades, numerous studies to develop and market such a “clean” solid acid catalyst technology have been investigated. Many papers were published, several developments were till pilot plant stage and two alkylation technologies declared to be commercialized. In this paper, an attempt to be made to review the various possible solid acids been used and to make suggestions, according to the researcher’s experiences and the author’s opinions, concerning research on isobutane/alkene alkylation in the future.