A Catalytic/Sorption Hybrid Process for Landfill Gas Cleanup
A Catalytic/Sorption Hybrid Process for Landfill Gas Cleanup
复制标题
用于垃圾填埋气体净化的催化/吸附混合工艺
DOI：
10.1021/ie970252h
复制
发表时间：
1997
影响因子：
4.2
通讯作者：
T. Tsotsis
中科院分区：
文献类型：
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作者：
Chuan He;D. Herman;R. Minet;T. Tsotsis
垃圾填埋气 (LFG) 主要由甲烷和二氧化碳以及少量的氧气、氮气和水组成。它还含有许多其他有机化合物，其中许多含有卤素和硫。这些化合物除了对人类、动物和植物具有潜在毒性外，还给填埋气体的进一步加工带来了挑战。例如，LFG 中的含卤素和含硫化合物严重影响用于生产氢气的重整催化剂的寿命，而氢气可用于燃料电池来产生电能。对于此类处理，重要的是将此类化合物的浓度从通常在LFG中发现的百万分之几十至几百的水平降低至百万分之一数，最优选十亿分之几的水平。目前还没有实现这一目标的有效流程。本文介绍了这种工艺的开发，该工艺非常适合 LFG 的燃料电池应用。该工艺结合了催化加氢处理、...
Landfill gas (LFG) consists primarily of methane and carbon dioxide and a few percent of O2, N2, and H2O. It also contains numerous other organic compounds, many containing halogens and sulfur. Such compounds besides being potentially toxic to human, animal, and plant life, in addition present challenges to the further processing of LFG. For example, halogen- and sulfur-containing compounds in LFG severely impact the life of reforming catalysts used to produce H2, to be utilized in a fuel cell for the production of electric energy. For such processing, it is important to reduce the concentration of such compounds from the level of tens to hundreds of parts per million, typically found in LFG, down to the single-digit parts per million and, most preferably, parts per billion level. Effective processes to accomplish this are not currently available. This paper describes the development of such a process, which is well-suited to fuel-cell applications of LFG. The process combines catalytic hydroprocessing, u...