... : fine filter application instance for oil refining industry.-Catalytic reformer and gas filtering;-Hydrofining unit, hydrogen, ... hydrogen circulation filtration, raw oil, oil filter;- Dry gas desulphurization device, gas filter,deficient liquid, solution filter;- ... , butadiene, acetylene, benzene, xylene and otherraw material filter;- Filters such as acetone, ethanol and glycerol. The ...