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基于苄胺的CO捕集吸附剂在再生策略方面的稳定性

Stability of a Benzyl Amine Based CO Capture Adsorbent in View of Regeneration Strategies.

作者信息

Yu Qian, Delgado Jorge de la P, Veneman Rens, Brilman Derk W F

机构信息

Sustainable Process Technology (SPT), Faculty of Science and Technology, University of Twente , PO Box 217, 7500 AE Enschede, The Netherlands.

出版信息

Ind Eng Chem Res. 2017 Mar 29;56(12):3259-3269. doi: 10.1021/acs.iecr.6b04645. Epub 2017 Mar 2.

DOI:10.1021/acs.iecr.6b04645
PMID:28405055
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5384483/
Abstract

In this work, the chemical and thermal stability of a primary amine-functionalized ion-exchange resin (Lewatit VP OC 1065) is studied in view of the potential options of regenerating this sorbent in a CO removal application. The adsorbent was treated continuously in the presence of air, different O/CO/N mixtures, concentrated CO, and steam, and then the remaining CO adsorption capacity was measured. Elemental analysis, BET/BJH analysis, Fourier transform infrared spectroscopy, and thermogravimetric analysis were applied to characterize adsorbent properties. This material was found to be thermally and hydrothermally stable at high temperatures. However, significant oxidative degradation occurred already at moderate temperatures (above 70 °C). Temperatures above 120 °C lead to degradation in concentrated dry CO. Adding moisture to the concentrated CO stream improves the CO-induced stability. Adsorbent regeneration with nitrogen stripping is studied with various parameters, focusing on minimizing the moles of purge gas required per mole of CO desorbed.

摘要

在本研究中，鉴于在一氧化碳脱除应用中对这种吸附剂进行再生的潜在选择，对一种伯胺官能化离子交换树脂（Lewatit VP OC 1065）的化学稳定性和热稳定性进行了研究。在空气、不同的氧气/一氧化碳/氮气混合物、浓一氧化碳和蒸汽存在的条件下对吸附剂进行连续处理，然后测量剩余的一氧化碳吸附容量。采用元素分析、BET/BJH分析、傅里叶变换红外光谱和热重分析来表征吸附剂的性能。发现这种材料在高温下具有热稳定性和水热稳定性。然而，在中等温度（高于70°C）时就已经发生了显著的氧化降解。120°C以上的温度会导致在浓干一氧化碳中发生降解。向浓一氧化碳流中添加水分可提高一氧化碳诱导的稳定性。研究了用氮气汽提进行吸附剂再生的各种参数，重点是使每脱附一摩尔一氧化碳所需的吹扫气体摩尔数最小化。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/c6f73ad258c1/ie-2016-04645c_0010.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/ed7cd7739c74/ie-2016-04645c_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/c6f73ad258c1/ie-2016-04645c_0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/a5ff479c5b24/ie-2016-04645c_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/ec179cdcd31a/ie-2016-04645c_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/f0a5678b855e/ie-2016-04645c_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/33bbef0b8046/ie-2016-04645c_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/30fb1f7e0021/ie-2016-04645c_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/a5b9201705c1/ie-2016-04645c_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/4c003fe1d935/ie-2016-04645c_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/7196b31d99bc/ie-2016-04645c_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/ed7cd7739c74/ie-2016-04645c_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6cd/5384483/c6f73ad258c1/ie-2016-04645c_0010.jpg

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