Biogas purification to produce biological natural gas is a new renewable energy. Biogas contains hydrogen sulfide with the molecular formula of H2S. Hydrogen sulfide is a flammable hazardous chemical. It can form an explosive mixture when mixed with air. It can cause combustion and explosion in case of open fire and high heat. In addition, hydrogen sulfide will have strong corrosion characteristics on steel in case of water, Therefore, the core of the pretreatment process of biogas purification and purification of biological natural gas is the removal of hydrogen sulfide.

天然气是沼气通过净化提纯后得到的绿色、低碳、清洁环保的可再生燃气,与常规天然气成分、热值等基本一致。它的使用为传统沼气产业开辟了新的应用领域,提高了传统沼气工程的经济性,促进了沼气工程运营的持续性和稳定性,具有广阔的市场前景。

Natural gas is a green, low-carbon, clean and environment-friendly renewable gas obtained by purification and purification of biogas, which is basically consistent with the composition and calorific value of conventional natural gas. Its use has opened up new application fields for the traditional biogas industry, improved the economy of the traditional biogas project, promoted the sustainability and stability of the operation of the biogas project, and has broad market prospects.

对不同类型的沼气提纯技术进行了对比,从不同角度分析了各类技术的优缺点;通过分析原料供应市场和我国天然气市场现状,阐述了当前生物天然气产业面临的市场机遇与挑战,以期为我国生物天然气产业的发展提供一定的借鉴。

Different types of biogas purification technologies are compared, and the advantages and disadvantages of various technologies are analyzed from different angles; By analyzing the raw material supply market and the current situation of China's natural gas market, this paper expounds the market opportunities and challenges faced by the current biological natural gas industry, in order to provide some reference for the development of China's biological natural gas industry.

近年来，随着全球资源存储的不断告急以及环境治理压力的不断加大，越来越多的沼气提纯工程开始建设，这是十分符合当下新能源开发利用的新资源局势生产的，是未来能源领域发展的必然方向，是一项非常重要的举措。

In recent years, with the continuous urgency of global resource storage and the increasing pressure of environmental governance, more and more biogas purification projects have been constructed, which is very in line with the current situation of new resources for the development and utilization of new energy. It is an inevitable direction for the development of energy field in the future and a very important measure.

因为我国的天然气目前正处于一个快速发展的阶段，供应和消耗量都在快速提升，所以时常会出现天然气短缺的局面。为了应对这一局面，并出于对能源问题和环境问题的双重思考，沼气提纯制取生物天然气的研发，不仅可以实现高产量天然气资源，同时还能够实现较为突出的环境保护作用。

Because China's natural gas is currently in a stage of rapid development, and the supply and consumption are increasing rapidly, there is often a shortage of natural gas. In order to deal with this situation, and out of the dual thinking of energy and environmental problems, the research and development of biogas purification to produce biological natural gas can not only realize high-yield natural gas resources, but also achieve a more prominent role in environmental protection.