Studies on the carbonation of Czatkowice limestone in Calcium Looping process

Author:

Tomaszewicz Grzegorz1,Kotyczka-Morańska Michalina1,Plis Agnieszka1

Affiliation:

1. Institute for Chemical Processing of Coal, ul. Zamkowa 1, 41-803 Zabrze, Poland

Abstract

Abstract The growing demand for the reduction of anthropogenic CO2 emissions has stimulated the development of CO2 capture methods. One of the best capture methods comprises the calcium looping process, which incorporates calcium-based sorbents during the calcination and carbonation cycles. Czatkowice limestone may be considered to be a prospective chemical sorbent for the calcium looping process because of its formation characteristics. This paper addresses the thermogravimetric studies conducted under varying conditions of temperature and various concentrations of CO2 during the carbonation cycles. Moreover, a kinetic analysis of the carbonation stage was performed for the calcined sample at varying temperatures. The kinetic parameters for calcination and diffusion were determined. In addition, there was an increase in the concentration of CO2 with an increased carbonation conversion. The research results demonstrate that in further cycles of carbonation/calcination, the calcium sorbent reaches a higher rate of carbonation conversion with increased levels of CO2.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry,Biotechnology

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Improved CO2 Sorption Performance of Calcium Oxide (CaO) Sorbent with Nickel Oxide Additive;IOP Conference Series: Earth and Environmental Science;2019-06-01

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