会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 23. 发明专利
    • REMOVAL AND RECOVERY METHOD OF HYDROCARBON
    • JPH06269633A
    • 1994-09-27
    • JP5990693
    • 1993-03-19
    • NIPPON KOKAN KK
    • INOUE NORIO
    • B01D19/00B01D3/06B01D53/14B01D53/34B01D53/44B01D53/72B01D53/77
    • PURPOSE:To provide a method for removing hydrocarbon vapor from waste gas and recovering the hydrocarbon, especially, to discharge the waste gas while suppressing the concentration of the hydrocarbon in the waste gas as low as possible wherein the hydrocarbon vapor is produced in a storage tank for volatile hydrocarbons and the waste gas is a mixture of air and the hydrocarbon vapor. CONSTITUTION:The method comprises recovering hydrocarbon vapor from waste gas 2 by using apparatus equipped with an absorption tower 1, a regeneration tower 9, and a recovery tower 21. In the prior regeneration tower 9, the absorbent liquid which is flushed and desorbs most of the hydrocarbon vapor is led to the packed part 31 of the final regeneration tower 10, not condensable gas such as nitrogen gas, air, etc., is led there to carry out liquid-gas contact, and then remaining hydrocarbon is released. The absorbent liquid minimized in hydrocarbon concentration in this way is fed back again to the absorption tower 1, circulated and used and thus the hydrocarbon concentration in the waste gas is suppressed to a low level.
    • 28. 发明专利
    • GAS SEPARATION SYSTEM
    • JPS62286517A
    • 1987-12-12
    • JP12969886
    • 1986-06-04
    • NIPPON KOKAN KK
    • KATO MORITAKAINOUE NORIOSHIBUYA YOSHIKI
    • B01D53/22
    • PURPOSE:To recover useful components from mixed gas effectively and economically by pressurizing and supplying low-pressure gas permeating a separating membrane on a first stage to a second stage and returning high-pressure gas of a separating membrane on the second stage not yet permeating to the first stage. CONSTITUTION:A gas supply tube 20 is connected with a filter separator 22 and with a heat exchanger 26 through a piping 24. The heated gas is introduced to a gas separating tank 30 on a first stage through a piping 28. A membrane 32 easily transmitting hydrocarbon gas is provided in said separating tank. A product gas venting piping 38 is connected with a high-pressure chamber 34. The outlet of a low-pressure chamber 36 is connected with a gas compressor 42 through a piping 40, and further to a heat exchanger 50. The cooled gas passes through a mist separator 54 through a piping 52, is heated up by a heat exchanger 58 and introduced to a second-stage gas separating tank. The outlet of a high-pressure chamber 66 is connected with the inlet of a first-stage separating tank, and the gas is sent back.