CAJ | 학술논문

SAPO-34分子筛被用作甲醇反应制低碳烯烃(乙烯、丙烯)(MTO)工艺的催化剂。然而，传统的SAPO-34分子筛催化剂容易失活，单程寿命较短。研究表明，降低SAPO-34分子筛粒径，可以有效地提高催化剂比表面积，减弱扩散的限制，增加催化剂的活性中心和抗积炭能力、加速反应热去除以及延长催化剂单程寿命。本文介绍了小晶粒SAPO-34分子筛具有的特性和制备小晶粒SAPO-34分子筛技术的研究进展，并提出研究开发建议。
SAPO-34분자사피용작갑순반응제저탄희경(을희、병희)(MTO)공예적최화제。연이，전통적SAPO-34분자사최화제용역실활，단정수명교단。연구표명，강저SAPO-34분자사립경，가이유효지제고최화제비표면적，감약확산적한제，증가최화제적활성중심화항적탄능력、가속반응열거제이급연장최화제단정수명。본문개소료소정립SAPO-34분자사구유적특성화제비소정립SAPO-34분자사기술적연구진전，병제출연구개발건의。
SAPO-34 molecular sieves were used as the catalyst of the methanol to olefins (MTO) process, however, the conventional SAPO-34 catalysts were easy to loss activity and had a short single cycle life. It was found that reducing the crystalline size of SAPO-34 could improve the specific surface area, weaken the diffusion limit, increase the active sites, enhance the anti-carbon deposition ability, accelerate removing the heat of reaction and prolong the single cycle life. The characteristics and research advances of the small crystal SAPO-34 molecular sieves were presented, and some suggestions were given for developing these catalysts.