Template technique for synthesis of CaO-based sorbents with designed macroporous structure

被引：20

作者：

Derevschikov, Vladimir ^{[1
,2
,3
]}

Semeykina, Victoria ^{[1
,2
,3
]}

Bitar, Jasmine ^{[2
,4
]}

Parkhomchuk, Ekaterina ^{[1
,2
,3
]}

Okunev, Alexey ^{[1
,2
]}

机构：

[1] Boreskov Inst Catalysis, Pr Lavrentieva 5, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Pirogova Str 2, Novosibirsk 630090, Russia

[3] Novosibirsk State Univ, Res & Educ Ctr Energy Efficient Catalysis, Novosibirsk 630090, Russia

[4] ENSTA ParisTech, 828 Blvd Marechaux, F-91120 Palaiseau, France

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2017年 / 238卷

基金：

俄罗斯基础研究基金会;

关键词：

Carbon capture; Calcium oxide; Template; Porous structure; Regenerable sorbent; POSTCOMBUSTION CO2 CAPTURE; CALCIUM-OXIDE; DECOMPOSITION; PERFORMANCE; CAPACITY; SORPTION; BIOMASS;

D O I：

10.1016/j.micromeso.2016.02.032

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A polymeric template consisting of polystyrene microbeads was used to provide the macroporous structure of synthesized CaO-based sorbents. It was found that the pore size distribution of prepared and calcined sorbents drastically depends on the amount and particle size of the template used, as well as on the sorbent preparation conditions. The macroporous structure formed after the template removal significantly increases the rate of both recarbonation and decomposition reactions. The decomposition rate of the sorbent produced from a 40% templated composite was an order of magnitude higher than the rate of a reference sample produced in the absence of the template. In this way, the template approach seems to be a perspective technique to prepare CaO-based sorbents with enhanced recarbonation/ decomposition performance. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：56 / 61

页数：6

共 31 条

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