Home / All Air Separation tags /

Biogas purification standards

Biogas purification standards
The main components of biogas are CH4 and CO2, and the high-purity methane gas obtained by separating CO2 from the mixed gas is called biological natural gas. Biological natural gas can be directly used as an alternative fuel for petrochemical natural gas. The increasing demand for natural gas by humans has driven the development of bio natural gas technology. This article analyzes the differences in characteristics between biogas and natural gas, as well as the possibility of biogas purification replacing natural gas. It reviews the progress of methods for biogas purification, including pressurized water washing, chemical absorption, pressure swing adsorption (PSA), membrane separation, low-temperature separation, and in-situ methane enrichment, Among them, the pressurized water washing method and PSA method have become the two most commercially available technologies due to their comprehensive advantages in technology and economy. The performance of membrane separation technology in reducing purification costs and simplifying purification systems makes it a promising technology for development. Methane in-situ enrichment technology has advantages in using high solid content raw materials to produce biological natural gas.
News of Biogas purification standards
More
Apr 15, 2025
Henan Provincial Department of Science and Technology and Kaifeng Shunhe District Bureau of Industry and Information Technology Jointly Inspect DEAR A
Apr 10, 2025
DEAR Air Separation Collaborates with Xi'an Jiaotong University and Xi'an University of Posts & Telecommunications to Advance Intelligent Air Separati
Faq of Biogas purification standards
More
The brief introduction of the air filter and air compressor in this process is the same as that of the chilled nitrogen production process. 1. Cold dryer: it is an air separation equipment used to reduce the temperature of compressed air before entering the air drying purifier to extract oil and water. It usually adopts post cooler with the structure of column pipe type, casing type, cooling sheet type and so on. 2. Oil-water separator: its function is to separate the oil and moisture contained in the compressed air and make the compressed air get Primary purification. 3. Air drying purifier: Compressed air still contains certain moisture after passing through the post cooler, and its content depends on the temperature of the air. The drying process of compressed air generally adopts molecular sieve absorption method and freeze drying method. 4. Pressure conversion absorption nitrogen generation device: the adsorbents used are usually 5A Molecular sieve or carbon molecular sieve, an...
Sep 02, 2025
Expander is a kind of equipment that uses the principle of mechanical work output when compressed gas expands and depressurizes to lower the temperature of gas. Expander is the key equipment to provide cooling capacity for air separation plant. The efficiency of expander directly affects the operation effect of air separation plant. The following introduces several factors that cause the efficiency reduction of expander.
Aug 20, 2025
© Kaifeng DEAR Air Separation Industry Co., Ltd.. All rights reserved.
Online
Inquiry
Email
Top