Refinery dry gas refers to various tail gases by-produced during the crude oil production process, including catalytic cracking dry gas, coking dry gas, catalytic reforming gas, thermal cracking gas, and high pressure hydrocracking tail gas.

Coke oven gas is a flammable gas produced during the high-temperature, slow dry distillation of coal in the coke production process.

Raw gas whose main component is CO can be converted to CO2 and H2 mainly through the conversion reactor, which can be used as one of the main raw gases for hydrogen production.

To produce LNG from natural gas, the CO2, H2S and other components in natural gas are firstly absorbed by MDEA solution, and the unabsorbed purified gas is dried after liquid separation and then put into the cold box to produce LNG.

The company's proprietary technology developed for low concentration gas, after fully analysing the nature of the raw gas, adopts variable pressure adsorption under micro-pressure conditions to separate CH4 and N2/O2.

PSA method of biogas concentration is to use adsorbent to separate methane, carbon dioxide and nitrogen in biogas, so as to achieve the purpose of methane concentration.

Purification of carbon monoxide from mixtures containing carbon monoxide, hydrogen, nitrogen, methane, carbon dioxide and other components using the variable pressure adsorption process.

Industrial hydrogen production from coal is good for large-scale hydrogen production or when no other suitable feedstock is available.

This process uses methanol and demineralised water from convenient sources as raw materials, which are catalytically converted over a specialised catalyst at 220-280°C into a reformed gas containing mainly hydrogen and carbon dioxide.

Hydrogen from natural gas is also a relatively traditional technology, which was previously commonly used for large-scale hydrogen supply applications, e.g. above 5000 m3/h.

Variable Pressure Adsorption (VPA) CO2 removal process is widely used in ammonia, methanol, butanol decarbonisation units and urea, soda ash, industrial CO2 purification CO2 units as well as chi gas and CO2-containing tail gas recovery units due to its high degree of automation, convenient adjustment of removal accuracy, wide range of application, low energy consumption, and other features.

In industrial hydrogen purification by pressure swing adsorption (PSA), the adsorbents generally adsorb the easily adsorbed components out of the gas mixture at ambient temperature and high pressure, while the not easily adsorbed components (such as hydrogen) flow out from one end of the bed as the product