Ceramic-carbonate compact double-phase inorganic membrane taking ceramic material as support body: Fid-Bau Portal

Ceramic-carbonate compact double-phase inorganic membrane taking ceramic material as support body

CHEN TIANJIA / ZHANG YONGFENG / XU YANYANG

The invention relates to the field of inorganic membrane preparation, in particular to a ceramic-carbonate compact double-phase inorganic membrane taking a ceramic material as a support body, the inorganic membrane comprises two phases, one phase is a ceramic phase taken as the support body, and the other phase is a carbonate phase; the ceramic phase is made of samarium oxide doped cerium oxide, and the carbonate phase is mixed carbonate. Wherein the carbonate phase is a mixed carbonate composed of lithium carbonate and sodium carbonate, and the mixing ratio of lithium carbonate to sodium carbonate is 52: 48 mol%. The compact inorganic membrane disclosed by the invention can be used for directly separating CO2 at a high temperature, so that the cooling process of mixed exhaust gas is omitted, the load energy is saved, and the economic benefit of production is improved in a turning manner.

本发明涉及无机膜制备领域，具体涉及一种以陶瓷材料为支撑体的陶瓷‑碳酸盐致密双相无机膜，该无机膜包含两相，一相是作为支撑体的陶瓷相，另一相是碳酸盐相；陶瓷相的材料为氧化钐掺杂氧化铈，碳酸盐相为混合碳酸盐。所述碳酸盐相为由碳酸锂和碳酸钠组成的混合碳酸盐，碳酸锂和碳酸钠的混合比例为52:48 mol%。本发明的致密无机膜在高温下可以直接分离CO2，省去了混合排放气体的降温过程，节省了负载能量，变向的提高了生产经济收益。

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