化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2015年
3期
731-737
,共7页
SAPO-34%分子筛%低碳烯烃%甲醇
SAPO-34%分子篩%低碳烯烴%甲醇
SAPO-34%분자사%저탄희경%갑순
SAPO-34%molecular sieves%lower carbon olefin%methanol
介绍了用于催化甲醇制烯烃的SAPO-34分子筛合成的研究近况。SAPO-34分子筛的合成过程是影响其晶粒尺寸、酸性强弱等物化性能的重要因素，因而是影响其催化性能的关键因素。本文详细叙述了原料配比及其种类、模板剂、F?等合成因素对SAPO-34分子筛物化性能及其MTO反应催化性能的影响。针对SAPO-34合成及其催化性能优化的新技术，综述了SAPO-34分子筛的金属改性及其超声波、微波辅助合成的特点和效果，指出通过研发新的模板剂及其助剂、改性或制备新工艺进而改善分子筛的酸性、提高其烯烃选择性、延长催化反应寿命、降低合成成本是SAPO-34今后研发的重要方向。
介紹瞭用于催化甲醇製烯烴的SAPO-34分子篩閤成的研究近況。SAPO-34分子篩的閤成過程是影響其晶粒呎吋、痠性彊弱等物化性能的重要因素，因而是影響其催化性能的關鍵因素。本文詳細敘述瞭原料配比及其種類、模闆劑、F?等閤成因素對SAPO-34分子篩物化性能及其MTO反應催化性能的影響。針對SAPO-34閤成及其催化性能優化的新技術，綜述瞭SAPO-34分子篩的金屬改性及其超聲波、微波輔助閤成的特點和效果，指齣通過研髮新的模闆劑及其助劑、改性或製備新工藝進而改善分子篩的痠性、提高其烯烴選擇性、延長催化反應壽命、降低閤成成本是SAPO-34今後研髮的重要方嚮。
개소료용우최화갑순제희경적SAPO-34분자사합성적연구근황。SAPO-34분자사적합성과정시영향기정립척촌、산성강약등물화성능적중요인소，인이시영향기최화성능적관건인소。본문상세서술료원료배비급기충류、모판제、F?등합성인소대SAPO-34분자사물화성능급기MTO반응최화성능적영향。침대SAPO-34합성급기최화성능우화적신기술，종술료SAPO-34분자사적금속개성급기초성파、미파보조합성적특점화효과，지출통과연발신적모판제급기조제、개성혹제비신공예진이개선분자사적산성、제고기희경선택성、연장최화반응수명、강저합성성본시SAPO-34금후연발적중요방향。
Latest researches on SAPO-34 molecular sieves in methanol to olefins reaction are introduced. It is found that the synthesis process of SAPO-34 molecular sieve can affect its crystallite size,acid strength and other physico-chemical properties,eventually its catalytic properties. The synthetic factors of SAPO-34 molecular sieve,such as the ratio of raw materials and their types, template,F-ions,which can affect its physico-chemical properties and catalytic performance in MTO reaction,are discussed in detail. Regarding the new technologies of SAPO-34 synthesis and catalytic performance optimization,the features and effects of metal-modified,ultrasonic or microwave assisted synthesis of SAPO-34 are reviewed. The trend for the development of SAPO-34 is to obtain higher olefin selectivity,longer life and lower cost by the discovery of new template and new technology for the modification or preparation of molecular sieves.
