Combined top-reducing vacuumizing device based on dry type reduced pressure distillation

• Main Authors: CHANG YUYAN, GAO QIANG, ZHAO XIAOYONG, YANG WEIFENG, MENG ZHAOKAI, QIN JINGMIN
• Format: Patent
• Language: Chinese; English
• Published: 19.11.2019
• 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 combined type top-reducing vacuumizing device based on dry type reduced pressure distillation. The combined type top-reducing vacuumizing device comprises a pressurizingejector, a liquid ring vacuum pump, a reciprocating vacuum pump, a roots vacuum pump, a draining pump, an oil draining pump, a condenser, an oil-gas-water separator, a pipeline and a control valve, afirst pressurizing ejector and a first condenser are connected in series to a first branch of the evacuation line; the second branch is connected with a second pressurizing ejector and a second condenser in series, the third branch is connected with a liquid ring vacuum pump, a first Roots vacuum pump, a second Roots vacuum pump and a third condenser in series, and the fourth branch is connected with a reciprocating vacuum pump, a third Roots vacuum pump, a fourth Roots vacuum pump and a fourth condenser in series. According to the utility model, the combined top-reducing vacuumizing device isadopted, and the original