A Review on SAPO‐34 Zeolite Materials for CO₂ Capture and Conversion

Abstract

Among several known zeolites, silicoaluminophosphate (SAPO)‐34 zeolite exhibits a distinct chemical structure, unique pore size distribution, and chemical, thermal, and ion exchange capabilities, which have recently attracted considerable research attention. Global carbon dioxide (CO2) emissions are a serious environmental issue. Current atmospheric CO2 level exceeds 414 parts per million (ppm), which greatly influences humans, fauna, flora, and the ecosystem as a whole. Zeolites play a vital role in CO2 removal, recycling, and utilization. This review summarizes the properties of the SAPO‐34 zeolite and its role in CO2 capture and separation from air and natural gas. In addition, due to their high thermal stability and catalytic nature, CO2 conversions into valuable products over single metal, bi‐metallic, and tri‐metallic catalysts and their oxides supported on SAPO‐34 were also summarized. Considering these accomplishments, substantial problems related to SAPO‐34 are discussed, and future recommendations are offered in detail to predict how SAPO‐34 could be employed for greenhouse gas mitigation.

Carbon dioxide capture with zeotype materials

“…(Metallo)aluminophosphate ((M)AlPO, non-zeolite, but several AlPO 4 topologies have been realized as zeolites) materials have also been studied for CO 2 adsorption. [65][66][67][68][69][70][71][72] Cheung et al investigated the performance of SAPO-17 (ERI), SAPO-35 (LEV), SAPO-56 (AFX) and SAPO-RHO for CO 2 adsorption at 0 1C. 66 The SAPO-56 material showed slightly higher capacity (5.46 mmol g À1 ) at 1 bar than the benchmark zeolite 13X (5.22 mmol g À1 ).…”

“…Some reviews have discussed zeolites as adsorbents for CO 2 capture. 2,11,[47][48][49][50][51][52] However, to the best of our knowledge, a comprehensive analysis of CO 2 capture in zeolites, including the CO 2 adsorption mechanism and determining factors for CO 2 capture performance, has not appeared. In this review, a summary and critical analysis of the zeolite-based materials for CO 2 capture are presented.…”

MXenes as Emerging Materials: Synthesis, Properties, and Applications

“…Gas sensing is an emerging research direction because it is employed in air quality control for monitoring pollution, breath analysis, and diagnosis [ 149 , 150 ]. Aside from highly reactive gases such as NO 2 and H 2 S, the detection of volatile organic compounds (VOCs) at parts per million (ppm) concentrations is crucial for the early identification of stern disorders such as peptic ulcers.…”

Recent Progress of SAPO-34 Zeolite Membranes for CO2 Separation: A Review

“…Due to these characteristic features, SAPO-34 has been extensively used in the methanol to olefin (MTO) process [ 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 ]. In recent years, SAPO-34 has been investigated for CO 2 remediation, including CO 2 capture [ 49 , 50 , 51 ], conversion [ 52 , 53 , 54 ], and separation [ 49 ]. Several studies have already covered a vast area of SAPO-34 materials research.…”

“…Kumar et al [ 57 ] reviewed CO 2 capture by various zeolites in general. Recently, Usman et al [ 54 ] reviewed SAPO-34 zeolite materials for CO 2 capture and conversion into useful chemicals. Despite the publication of multiple review studies, the role of SAPO-34 zeolite in CO 2 mitigation has yet to be summarized.…”