ISSN: 0304-128X ISSN: 2233-9558
Copyright © 2024 KICHE. All rights reserved

Articles & Issues

Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
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.

All issues

메탄올로부터 탄화수소 합성을 위한 촉매연구

A Study on the Catalytic Synthesis of Hydrocarbons from Methanol

HWAHAK KONGHAK, February 1988, 26(1), 22-32(11), NONE
downloadDownload PDF

Abstract

여러 가지 탄화수소 중에서 저급 올레핀의 생성을 위하여 메탄올로부터 탄화수소로의 기상 전이반응에 Y-형 제올라이트와 이온교환된 Y-형 제올라이트의 역할과 적용성에 대해서 연구하였다. 전반적으로, 실험은 상압하에서 반응온도 400 ℃, 메탄올/질소 몰비 1, 액체공간속도 0.79 gr-feed/hr·gr-cat을 택하여 수행하였다. 메탄올 전환반응에 미치는 온도, 메탄올 분압, 접촉시간 및 촉매의 비활성화 과정 및 그 영향에 대하여 연구하였는데, 생성물 분포에 미치는 온도의 영향은 미미하였고 메탄올의 분압을 낮추고 접촉시간을 줄임으로써 저급 올레핀에 대한 선택도를 증가시킬 수 있었고, 촉매의 비활성화가 진행됨에 따라 전환율은 감소하나 저급 올레핀의 선택도는 증가하였다. 또한 촉매의 이온교환 효과에 대해서도 연구하였는데, 이온교환된 촉매는 저급 올레핀에 대한 선택도와 촉매의 수명을 모두 향상시켰다.
The catalytic performance and availability of Y-type zeolite and ion-exchanged Y-type zeolite were studied in vapor phase nethanol conversion to hydrocarbons in order to get low olefins among various hydrocarbons. In general, the experiments were carried out at 400 oC, equimole of methanol and nitrogen, 0.79 gr-feed/hr·gr-cat of LWHSV(Liquid Weight Hourly Space Velocity) and under atmospheric pressure. The study was performed for the effects of temperature, partial pressure of methanol and contact time on product distribution, and it was extended to the deactivation process of catalyst and its effect on product distribution. Temperature was less effective than the other reaction parameters, and the selectivity for low olefins was improved by lowering partial pressure of methanol and by reducing contact time. As deactivation proceeded, the selectivity for low olefins was increased. The effect of ion-exchange was also studied. It was revealed that the ion-exchange of catalyst could improve both of the selectivity for low olefins and catalyst's life time.

Keywords

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

Copyright (C) KICHE.all rights reserved.

- Korean Chemical Engineering Research 상단으로