SSZ-13沸石分子筛的合成及应用

Synthesis and applications of SSZ-13 zeolite molecular sieves

综述了水热法、转晶法、固相研磨法等SSZ-13沸石分子筛的合成方法,介绍了SSZ-13沸石分子筛引入金属杂原子、调变孔尺寸等改性方法。指出开发价格低廉、性能优越的模板剂或不使用有机模板剂的高效合成路线,是实现工业化生产的发展方向。概述了SSZ-13沸石分子筛在甲醇制烯烃、选择性催化还原和气体吸附/分离等应用的研究进展。在催化反应中的积碳和高温失活等问题亟待解决,气体吸附/分离性能还有提高的空间。

Progresses in the synthesis, namely hydrothermal synthesis, interzeolite conversion and solid grinding, and applications of SSZ-13 zeolite molecular sieves were reviewed. Modified SSZ- 13 zeolite molecular sieves were also concisely introduced, such as metal-modified SSZ-13 and hierarchical SSZ-13. It was pointed out that a high-efficient synthesis route for the industrialization of the synthesis should be exploited, which involved adding inexpensive and high performance organic templates or without using any organic template. The applications of the SSZ-13 zeolite molecular sieves in methanol to olefin, selective catalytic reduction, and gas adsorption and separation were summarized. The problems about the easy coking in catalytic reactions and the fast inactivation at high temperature should be solved, and the adsorption and separation properties of the SSZ-13 zeolite molecular sieves should be improved.