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CO2 adsorption mechanism of potassium promoted hydrotalcite and its application in high purity hydrogen production (T02-T01)

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CO2 adsorption mechanism of potassium promoted hydrotalcite and its application in high purity hydrogen production (T02-T01)

Phase:	Theme
Theme:	Carbon CUS (T02)
StatusStatut:	Active
Start DateDate de début:	2018-07-01
End DateDate de fin:	2020-06-30
Principal Investigator
Zhang, Hao

Aperçu de Project Overview

Elevated-temperature presure swing adsorption (ET-PSA) is a promising technique for high purity hydrogen production, which can reduce equipment investment, avoid sensible heat loss of syngas, and reduce energy consumption for heat regeneration. One of the difficulties in the development of this technique for CO₂ removal is the synthesis and charaterization of CO₂ solid adsorbents that requires high selecitivity and adsorption capacities at elevated tempearatures, adequate adsorption/desorption kinetics, stable working capacites and adequate mechanical strength. Hydrotalcite (HTC) or layered double hydroxides (LDH) has been previously identified as the potential candidate materials for solid sorbent. Based on previous colloboration and common interests on both sides, the current proposed project will focus on ET-PSA hydrogen production system to conduct fundemental research on the adsorption/desorption reaction mechanism and system process configuration of adsorbent.

Outputs

Title	Category	Date	Authors
Structure and CO 2 physisorption capacity of hydrotalcite-derived oxide University of Alberta	Publication	2020-02-01	Mohammad Khalkhali, Xuancan Zhu, Yixiang Shi, Qingxia Liu, Phillip YK Choi, Zhang, H.
Warm hydrogen direct adsorptive separation and purification with highly CO /H2S-tolerant rare earth alloys University of Alberta	Publication	2020-12-01	Peixuan Hao, Xinyi Wang, Shuang Li, Zhang, H., Mohammad Khalkhali, Yixiang Shi, Ningsheng Cai

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