目前市面上用于沼氣凈化、分離、提純的工藝還是比較多，如吸收法、變壓吸附法、低溫冷凝法、膜分離法等，不同工藝要求不同、標準不同、投資及運營維護費用不同……因此在選擇沼氣凈化提純時要明確自己的目的才能選擇適合的工藝技術及產品服務。
At present, there are still many processes used for biogas purification, separation and purification on the market, such as absorption method, pressure swing adsorption method, low-temperature condensation method, membrane separation method, etc. different process requirements, standards, investment and operation and maintenance costs are different... Therefore, when selecting biogas purification and purification, we should clarify our own purpose before selecting appropriate process technology and product services.
明確需求 ：
Clear requirements:
明確明確自己需求，是進行正確沼氣工程工藝、設備、服務選擇的基礎，格尚提供不同的服務模式提供個性化非標定制服務滿足客戶不同需求。
Clarifying their own needs is the basis for correct selection of biogas engineering process, equipment and services. GESHANG provides different service modes and personalized non-standard customized services to meet different needs of customers.
明確服務模式即是明確自己需求，是進行正確沼氣工程工藝、設備、服務選擇的基礎，格尚提供不同的服務
Clarifying the service mode is to clarify their own needs, which is the basis for correct selection of biogas engineering process, equipment and services. GESHANG provides different services
模式提供個性化非標定制服務滿足客戶不同需求。
Mode provides personalized non-standard customized services to meet different needs of customers.
商業模式：
Business model:
創新的商業模式能有效的降低客戶風險，壓力。
Innovative business model can effectively reduce customer risk and pressure.
3.工藝考量
3. Process considerations
沼氣發酵工藝技術經過多年的發展，已經相當成熟，能根據不同的原料、不同的處理標準要求，匹配各種不同的工藝，對應的沼氣利用，凈化提純技術也得到了很好的發展，下面就目前市面上的工藝進行系統的介紹，以幫助客戶在工藝選擇時進行參考。
After years of development, biogas fermentation technology has been quite mature. It can match different processes according to different raw materials and different treatment standards. The corresponding biogas utilization and purification technology have also been well developed. The following is a systematic introduction to the processes on the market to help customers make reference in process selection.

系統工藝
System process
沼氣提純是一個系統工程，有一整套的系統工藝，就目前市面上工藝情況，主要有吸收法、變壓吸附法、低溫冷凝法、膜分離法等，不同工藝要求及標準也有差異，其中膜分離技術是目前世界上效率和效果TOP1好的沼氣提純技術，凈化提純后的氣體能達到并網天然氣標準，國內大部分采用的是脫硫、脫水等凈化工藝，不是真正意義上的提純，沒有提高甲烷的濃度，并且經過研究發現未經提純使用的沼氣，是存在非常大的潛在風險。
Biogas purification is a systematic project with a complete set of systematic processes. According to the current process situation on the market, it mainly includes absorption method, pressure swing adsorption method, low-temperature condensation method, membrane separation method, etc. different process requirements and standards are also different. Among them, membrane separation technology is the highest biogas purification technology with high efficiency and effect in the world, The purified gas can meet the grid connected natural gas standard. Most of the purification processes used in China are desulfurization, dehydration and other purification processes, which are not purification in the real sense, and the concentration of methane has not been improved. After research, it is found that there is a very large potential risk for the unprocessed biogas.
膜分離沼氣提純技術是目前可靠、經濟的沼氣提純工藝之一，我我們采用日本UBE公司的高性能氣體分離膜通過此工藝技術甲烷的純度可達到95%～97%，二氧化碳純度及回收率可達85%～99.9%，另外還可分離回收單質硫，是未來沼氣提純深度利用的主流工藝。膜法氣體分離工藝分為一級和二級膜處理工藝，能滿足目前沼氣提純國家及國際凈化提純的標準要求，諸如天然氣標準、車用天然氣標準等。
Membrane separation biogas purification technology is one of the reliable and economical biogas purification processes at present. We adopt the high-performance gas separation membrane of UBE company in Japan. Through this process, the purity of methane can reach 95% ~ 97%, and the purity and recovery of carbon dioxide can reach 85% ~ 99.9%. In addition, it can separate and recover elemental sulfur, which is the mainstream process for deep utilization of biogas purification in the future. Membrane gas separation process is divided into primary and secondary membrane treatment processes, which can meet the current national and international standards for biogas purification, such as natural gas standards, vehicle natural gas standards, etc.