ISSN: 0256-1115 (print version) ISSN: 1975-7220 (electronic version)
Copyright © 2024 KICHE. All rights reserved

Overall

Language
English
Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
Publication history
Received May 5, 2023
Accepted September 3, 2023
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.

Most Cited

Performance Evaluation of Static and Dynamic CO 2 Adsorption from Synthetic Gas Condensates Using Zinc Oxide, Silicon Dioxide and Zeolite 13X

Department of Chemical and Petroleum Engineering, School of Chemical, Petroleum and Gas Engineering, Enhanced Oil and Gas Recovery Institute, Advanced Research Group for Gas Condensate Recovery , Shiraz University
Korean Journal of Chemical Engineering, March 2024, 41(3), 879-892(14), https://doi.org/10.1007/s11814-024-00081-w

Abstract

This paper evaluated ZnO, SiO 2 and zeolite 13X for removing CO 2 from normal heptane (nC 7 ) as synthetic gas condensates

in batch mode. Based on the results of CO 2 adsorption isotherms, zeolite 13X had the highest CO 2 uptake in 1400–3700 ppm

at atmospheric pressure. Due to the higher specifi c surface area of granular zeolite 13X, its CO 2 uptake was more than that

of zeolite 13X powder. Also, the CO 2 adsorption equilibrium time was less than 30 min for zeolite 13X powder. The selectivity

of zeolite 13X powder (i.e., H 2 S/CO 2 ) was 2.36–4.08 for 2001–3930 ppm H 2 S with 1668 ppm CO 2 . Besides, the CO 2

breakthrough time for zeolite 13X powder was 50–4 min for WHSV (weight hourly space velocity) = 5–20 h −1 at 30 bar in

continuous mode. Additionally, for the increased CO 2 concentration from 1000 to 3000 ppm, the CO 2 breakthrough time

decreased from 30 to 11 min with WHSV = 10 h −1 . The CO 2 breakthrough time diminished by 2.5-fold as the pressure was

reduced from 30 bar to atmosphere for the initial CO 2 concentration of 1000 ppm in nC 7 and WHSV = 10 h −1 . Subsequently,

the regeneration of zeolite 13X by stagnant hot air was investigated for the CO 2 concentration range of 1000–3000 ppm,

air-adsorbent contact time range of 30–180 min and temperature range of 100–300 °C using Box–Behnken design. Its regeneration

effi ciency was more than 95% for the CO 2 concentration below 1000 ppm.

The Korean Institute of Chemical Engineers. F5, 119, Anam-ro, Seongbuk-gu, 233 Spring Street Seoul 02856, South Korea.
TEL. No. +82-2-458-3078FAX No. +82-507-804-0669E-mail : kiche@kiche.or.kr

Copyright (C) KICHE.all rights reserved.

- Korean Journal of Chemical Engineering 상단으로