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Case presentation

  • Automobile manufacturing
    • Degreasing solution filtration
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    • Circulating water filtration
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    • Topcoat filtration
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    • Hot water washing filtration
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    • Application of automobile filter coating
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  • Food and beverage
    • Compressed gas filtration
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    • Roof breathing filtration
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    • CIP cleaning and filtration
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    • Bottle washing water filtration
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    • Filtration fermentation
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    • Water filtration
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  • Chemical industry
    • Resin filtration
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    • Synthetic fiber
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    • Filtration of polycarbonate production
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    • Hydrogen peroxide filtration
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    • Polyurethane production process
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    • Nylon production
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    • Ethylene glycol production
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    • Ethylene production
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    • Polypropylene production
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  • water treatment
    • Drinking water filtration
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    • Boiler make-up water treatment
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    • Condensate purification
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    • Cooling water reuse
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  • Oil exploitation and refining
    • Natural gas dehydration
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    • Amine filtration
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    • Inlet gas separation
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    • Lubricating oil filtration
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    • Produced water filtration
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    • Completion fluid filtration
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    • Well water filtration
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  • electronics industry
    • Ultra pure water treatment
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    • Ultra pure gas treatment
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    • Wafer grinding and cutting wastewater recycling
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    • Microelectronic air filtration
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    • Semiconductor manufacturing wastewater
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    • Liquid crystal cleaning
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  • Engineering cases
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contact us

National Service Hotline:

fifteen billion three hundred and seventeen million eight hundred and six thousand two hundred and seventy-nine

Shanghai Ruiyuan Filter Equipment Co., Ltd

Tel: 15317806279

Fax: 0512-00000000

Email: 1203556126@qq.com

Website: robertstower.com

Address: 1990 Jinbi Road, Fengxian District, Shanghai

Amine desulfurization

2019-06-15
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 Amine desulfurization
Details:

Application of amine desulfurization filtration
Amine liquid desulfurization is mostly used in refinery dry gas and liquefied gas desulfurization. Amine liquid is used to absorb H2S and CO2 in the gas to achieve purification purpose. The solvent converted into alkanolamine salt releases H2S and CO2 after heating and stripping, and the amine liquid is recycled after regeneration.
In the process of amine desulfurization, in addition to the absorption of H2S and CO2, it often reacts with other substances in the system or entrains solid impurities into the upstream pipeline, including thermally stabilized salts, sulfides, iron filings, etc. It is easy to cause foaming, scaling and other problems, resulting in reduced efficiency and serious consequences of equipment damage.
Therefore, amine filtration is particularly important in gas desulfurization. Combined with practical application experience, the optimized solution for amine liquid desulfurization process was proposed, and many problems in production line were solved.
The main problems facing refineries are as follows:
If the concentration of hydrocarbon in the solution is too high, it will form amine foaming with organic acid, which will cause foaming in contact tower and stripping tower, cause solvent loss, sulfur regeneration catalyst poisoning, and reduce contact rate.

The liquid hydrocarbons, FES / SS and chemical treatment agents in the raw natural gas cause scaling of the condensing tower and heat exchanger, reducing the efficiency and strongly corroding the heat exchanger, resulting in thermal equipment damage.

The frequent replacement of amine filtration, the generation of thermal stable salt, the generation of cyanide, the scaling of filter medium activated carbon, the increase of heat energy use, the supplement of solvent, the increase of treatment wastewater and so on cause the maintenance cost to increase continuously.
Causes of blistering
Hydrocarbon and organic acids cause amine foaming
Treated fluid and corrosion inhibitor
Oil, inhibitor and welding fluid
Water pollutants
Suspended solids (which do not actually cause blistering but can stabilize)
Ferrous sulfide, FES, fine carbon powder, colloidal iron oxide
Poor separation of inflow natural gas and insufficient filtration of solution
Natural cotton filter
Improper selection of filter materials
Keeping a clean system is the key
Reducing the concentration of carbohydrates by controlling the flow of lean amine water and natural gas
Fully filter natural gas to reduce liquid hydrocarbon, FES / SS, chemical treatment agent
Sufficient activated carbon and mechanical filtration
Proper selection of mechanical filter materials
Temporary use of antifoaming agents
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Copyright Shanghai Ruiyuan Filter Equipment Co., Ltd

Service hotline: 15317806279

Email: 1203556126@qq.com

Address: 1990 Jinbi Road, Fengxian District, Shanghai

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