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Molecular Sieve-5A를 충전한 Pressure Swing Adsorption 공정에서 H2-CO 혼합물의 분리
Separation of H2-CO Mixture in the Pressure Swing Adsorption Process Packed with Molecular Sieve-5A
HWAHAK KONGHAK, August 1988, 26(4), 345-350(6), NONE
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Abstract
Molecular Sieve-5A를 흡착제로 충전한 Pressure Swing Adsorption（PAA） 공정에서 H2와 CO의 혼합물(H2/CO=75/25 vol.%)을 분리하는 실험적 연구를 수행하였다. PSA 공정 cycle은 기본적인 5가지 단계(I. 승압, II. 흡착, III. 병류감압, IV. 항류감압, V. 퍼어지)로 구성되며 한 개의 흡착탑으로 각각의 농축된 제품을 얻을 수 있도록 하였다. 흡착압력(300∼500 KPa), 흡착탑 온도(20∼40 ℃)의 변화와 각 단계의 변화에 대한 분리효과를 조사하였다. 이러한 실험으로부터 높은 순도의 H2는 II단계에서, 농축된 CO는 IV단계에서 얻었다.
An experimental study was performed for the bulk separation of a binary mixture（H2/CO=75/25 vol.%） in a Pressure Swing Adsorption(PSA) process packed with molecular sieve-5A. The PSA process cycle cumprised five steps; I pressurization, II adsorption, III cocurrent depressurization, IV countercurrent depressurization, V purge. The cycle was designed to recover two products from the binary mixture feed using a single column. The separation effects for the variation of adsorption pressure (300-500 KPa), bed temperaure(20-40℃) and operation on each steps were investigated. From the results, high purity H2 from step II, and CO-rich gas from steps IV were obtained.
