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碱土金属改性SAPO-34催化甲醇制烯烃

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Indexed by:期刊论文

Date of Publication:2009-06-01

Journal:催化学报

Included Journals:SCIE、PKU、ISTIC、CSCD

Volume:30

Issue:6

Page Number:509-513

ISSN No.: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%.

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