Development of Selective Adsorption Process with Various Pore Size A-type Zeolite on Removal of Acetylenes for Isoprene Purification

Title
Development of Selective Adsorption Process with Various Pore Size A-type Zeolite on Removal of Acetylenes for Isoprene Purification
Authors
전경진안병성유계상
Keywords
adsorption; isoprene; acetylenes; A zeolite
Issue Date
2010-10
Publisher
공업화학 (Applied Chemistry for Engineering)
Citation
VOL 21, NO 5, 548-552
Abstract
This study focused on the development of effective adsorbent to remove acetylenes for the purification of isoprene. The adsorbents with various pore sizes from 4 Å to 5 Å were prepared to investigate the effect of pore size on selective adsorption of acetylene as an impurity. The pore size of zeolite A was adjusted by ion-exchange between Na and Ca ions. The pore size of adsorbents has affected the removal of acetylenes selectively because of the kinetic diameter of acetylenes, such as 2-methyl-1-butyne-3-yen (IPA) and 2-butyne. In a batch adsorption experiment, 5A zeolite with pore size of 5 Å showed the highest removal capacity of 2-butyne. However, IPA was hardly removed from isoprene by the A-type zeolites. For the adsorption isotherm, modified Langmuir model was well fitted with 2-butyne adsorption. Moreover, the regeneration of adsorbent was carried out to determine optimum method. The adsorbent heated for 12 h at 300 ℃ was regenerated significantly.
URI
http://pubs.kist.re.kr/handle/201004/38018
ISSN
1225-0112
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE