工程科学学报2017，Vol.39Issue(3)：443-448,6.DOI:10.13374/j.issn2095-9389.2017.03.017
变压吸附空分用椰壳基炭分子筛的制备
Preparation of coconut shell-based carbon molecular sieves for air separation by pressure swing adsorption
李兴伟 1徐绍平 1丛媛媛1
作者信息
- 1. 大连理工大学化工与环境生命学部, 大连116024
- 折叠
摘要
Abstract
A novel process for preparation of a carbon molecular sieve ( CMS) was proposed. With coconut shell char as a carbon precursor and phenol formaldehyde resin ( PF) as a binder, the process consists of a series of stages, i. e. , forming, carbonization, activation with steam, and two-step chemical vapor deposition with benzene as a carbon source. The CMS has been used as an adsor-bent in pressure swing adsorption ( PSA) of air for N2 production. The evaluation method of CMS based on PSA was developed by in-troducing a couple of analysis items including the amount of the effluent desorption gas in PSA and the O2 concentration in it. In this way, the development of the effective volume and size of the micropores of CMS during the preparation stages could be followed and controlled on purpose. The coconut shell-based CMS prepared by this method has a superior compressive strength and a comparable PSA performance to those commercial CMSs.关键词
炭分子筛/变压吸附/椰壳/空气分离Key words
carbon molecular sieves/pressure swing adsorption/coconut shells/air separation分类
化学化工引用本文复制引用
李兴伟,徐绍平,丛媛媛..变压吸附空分用椰壳基炭分子筛的制备[J].工程科学学报,2017,39(3):443-448,6.
