Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2009-06-01

Journal: 催化学报

Included Journals: CSCD、ISTIC、PKU、SCIE

Volume: 30

Issue: 6

Page Number: 509-513

ISSN: 0253-9837

Key Words: 碱土金属 改性 SAPO-34 甲醇制烯烃 积炭 寿命

Abstract: 用碱士金属(Mg,Ca,Sr和Ba)通过浸渍法对SAPO-34分子筛进行了改性,在常压连续流动固定床反应器上研究了其对甲醇制烯烃(MTO)反应的催化性能.结果表明,0.5%～1%Ba的添加明显提高了SAPO-34的抗积炭失活能力,使催化剂在WHSV=2 h-1和450℃条件下的催化寿命相对延长了27%.