Open AccessOptimization of CO2 Adsorption and Physical Properties for Pelletization of Zeolite 5A
Author(s) -
Patcharin Worathanakul,
Supawon Sangsuradet,
Boonthita Wongchalerm,
Thanaporn Arunchai,
Thanayut Khamkenbong
Publication year - 2021
Publication title -
current applied science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.14
H-Index - 3
ISSN - 2586-9396
DOI - 10.55003/cast.2022.03.22.0014
Subject(s) - pelletizing , zeolite , pellets , adsorption , materials science , bentonite , chemical engineering , pellet , compressive strength , compression (physics) , bauxite , composite material , sorbent , specific surface area , chemistry , organic chemistry , metallurgy , catalysis , engineering
This research investigated the effects of compression force, compression time, and addition of bentonite binder on zeolite 5A pelletization. Carbon dioxide (CO2) adsorption of zeolite 5A pellets was tested in a laboratory-scale packed-bed reactor at 298 K, atmospheric pressure and 2 l/h flow rate. Zeolite 5A pellets were prepared using a pelletization technique at 200-400 MPa compressive force, 5-15 min compression time, and with 0-15% wt. of bentonite binder. The specific surface area and density of zeolite 5A pellets increased with increase of compression force. Compression force led to increase in specific surface area and resulted in an agglomeration of zeolite pellets, making CO2 molecules more difficult to become active sorbent. The addition of bentonite into zeolite 5A pellets with more compression time resulted in the reduction of specific surface area. The compression force and mass fraction of the binder were found to offer significant control over CO2 adsorption capacity. No addition of binder, 200 MPa compression force and 5 min compression time resulted in a maximum CO2 adsorption capacity of 3.64 mmol CO2/g. This research indicated that zeolite 5A pellets have a beneficial effect and high potential as an adsorbent, especially in terms of CO2 adsorption and environmental applications