C2's device among recovery refinery dry gas

• Main Authors: HE HAO, SUN JIQING, GUO JIANBANG, YANG QINGYU, SONG YICHANG
• Format: Patent
• Language: English
• Published: 02.09.2015
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; SEPARATION; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TRANSPORTING

The utility model discloses a C2's device among recovery refinery dry gas, including PSA unit, compression unit and oily absorptive unit, the PSA unit includes one section PSA device, the compression unit includes the compressor, divides the fluid reservoir, wherein the entry and the raw materials dry gas intercommunication of one section PSA device, the export of one section PSA device and the entry of compressor intercommunication, the export of compressor and the entry intercommunication that divides the fluid reservoir. The beneficial effects of the utility model are that: earlier utilize one section PSA of low energy consumption to carry out preliminary concentration to the raw materials dry gas, further purification is carried out to PSA concentration gas to high recovery, high product purity's the absorption desorption method of recycling, and gaseous feeding, absorbent and the top reflux temperature of absorptive unit are 40 DEG C, adopts recirculated cooling water to reach and should cool off condensing temperature, does not need refrigeration plant. Adopt the compression lime set as the absorbent, need not follow other device introductions C4 absorbent.