化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2013年
9期
2130-2135
,共6页
甲醇%同系化%乙醇%催化剂
甲醇%同繫化%乙醇%催化劑
갑순%동계화%을순%최화제
methanol%ethanol%homologation%catalyst
甲醇同系化是一项很有前景的乙醇制备工艺,一般采用Ⅷ族金属可溶性盐作为催化剂,含碘化合物作为助催化剂。本文根据活性金属元素种类不同对甲醇同系化制乙醇催化体系进行分类,以此为基础对工艺条件优化、反应机理的研究现状进行了总结,指出现有催化剂体系乙醇产率偏低仍然是制约该工艺商业化的最大障碍。最后对甲醇同系化催化剂研究进行了展望,提出非均相多金属复合型催化剂的研制、非卤素类助剂的添加、低压稳定性甲醇同系化催化剂的开发是甲醇同系化研究的主要方向。
甲醇同繫化是一項很有前景的乙醇製備工藝,一般採用Ⅷ族金屬可溶性鹽作為催化劑,含碘化閤物作為助催化劑。本文根據活性金屬元素種類不同對甲醇同繫化製乙醇催化體繫進行分類,以此為基礎對工藝條件優化、反應機理的研究現狀進行瞭總結,指齣現有催化劑體繫乙醇產率偏低仍然是製約該工藝商業化的最大障礙。最後對甲醇同繫化催化劑研究進行瞭展望,提齣非均相多金屬複閤型催化劑的研製、非滷素類助劑的添加、低壓穩定性甲醇同繫化催化劑的開髮是甲醇同繫化研究的主要方嚮。
갑순동계화시일항흔유전경적을순제비공예,일반채용Ⅷ족금속가용성염작위최화제,함전화합물작위조최화제。본문근거활성금속원소충류불동대갑순동계화제을순최화체계진행분류,이차위기출대공예조건우화、반응궤리적연구현상진행료총결,지출현유최화제체계을순산솔편저잉연시제약해공예상업화적최대장애。최후대갑순동계화최화제연구진행료전망,제출비균상다금속복합형최화제적연제、비서소류조제적첨가、저압은정성갑순동계화최화제적개발시갑순동계화연구적주요방향。
The methanol homologation is one of the promising technologies for ethanol production. Soluble salts of group-Ⅷ metals are generally used as catalysts,and iodine compounds as promoters. In this paper,catalysts are categorized according to the variety of active metal elements,and the mechanism of methanol homologation reaction is analyzed based on the former category. The reported work indicated that the low ethanol yield was the major restriction for the commercialization of this technology. Finally,the outlook for the future development of methanol homologation catalyst and further investigation of mechanism is provided in light of the current research status,regarding composite catalyst with multimetallic,catalyst modified with no halogen element,as well as low pressure-resistant catalysts.