FIELD: process engineering.
SUBSTANCE: invention relates to cleaning liquefied hydrocarbon gases of methanol, said gases including mix of commercial propane and butane, commercial butane and propane, and may be used in gas condensate processing. Proposed method comprises extraction washing of said gases and their adsorption drying. After extraction washing, methanol is stripped from used water and condensed. Regenerated water is sent back to extraction washing stage. Note here that regenerated water contains not over 0.05% of methanol. Proposed plant comprises extraction washing unit and adsorption unit. Note here that said plant incorporates extraction water regeneration unit with its water outlet communicated with extraction washing unit and methanol outlet is communicated with methanol condensation apparatus.
EFFECT: non-polluting high-efficiency plant, production of valuable byproduct, ie methanol.
9 cl, 1 dwg
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