How to reduce residues in civilian liquefied gas
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Since the propylene contained in the liquefied petroleum gas produced by our company is separated in a gas fractionation unit to be used for producing polypropylene, there is a relatively large amount of residue in the liquefied petroleum gas exported for domestic use in winter. May I ask the experts how to reduce the amount of residue in domestic liquefied petroleum gas?
1. If your company produces liquefied petroleum gas itself, it is possible to control the C5 content in the liquefied gas through catalytic processes so that it remains at or below 3%. If you purchase the raw material, the residue at the bottom of the tank can be transferred to another tank before being filled into smaller containers
Installing a gas-liquid coalescing separator before the filling line is also an option.
Dimethyl ether has a boiling point of -24.9ºC; it contains 34.8% oxygen by mass. It burns completely, does not produce carbon deposits, and leaves no residue, making it an excellent, environmentally friendly clean fuel. According to available information, when dimethyl ether is mixed into liquefied gas at a ratio of 20%, it can act as a carrier to dissolve C4 and C5 compounds; it forms an azeotrope with these compounds, thereby ensuring complete combustion of the liquefied gas without any residual substances. Who has practical experience in this area? Could we exchange ideas?
Thank you. N-pentane has a boiling point of 36.2ºC at standard pressure (101.3 KPa); in winter, due to the low ambient temperature, components with a carbon chain length of more than C5 do not vaporize.