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The oil extracted from the subterranean oil layer is accompanied by water and sediment, and inorganic salts such as NaCl, MgCl2, CaCl2, etc. are dissolved in the water. The existence of these substances is very harmful to the processing process, so they must be removed by electric desalination. Since most of the inorganic salts are soluble in water, desalting and dehydration are carried out simultaneously. In order to remove the salt particles suspended in the crude oil, a certain amount of fresh water is injected into the crude oil (the injection amount is generally 5%), and a demulsifier is added at the same time, which is helpful for the breaking of the emulsified film in the emulsifier and the removal of inorganic salts. Removal: After fully mixing, under the action of the electric field, the tiny water droplets are coalesced into large water droplets, and the process of separating oil and water under the action of gravity is called electric dehydration/desalting.
The first generation of electric dehydration/salt technology
Alternating current dehydration/salt technology.
The second generation of electric dehydration/salt technology
Squirrel cage electric dehydration/salt technology.
The third generation electricity dehydration/salt technology
Intelligent pulse AC-DC electricity dehydration/salt technology.
The fourth generation electric dehydration/salt technology
High-speed electric dehydration/salt technology.
The fifth generation of electric dehydration/salt technology
Electrostatic coalescence dehydration/salt technology.
The sixth generation of electric dehydration/salt technology
Pulse composite electric field electric dehydration/salt technology.
The fresh water must be exchanged with the electric desalination drainage to 80-90 ℃ and then used as the electric desalination water injection.
The injection points of water injection for electric desalination are set to 3, one injection point in front of the primary and secondary mixing systems, and a new injection point in front of the heat exchanger. The water injection volume is about 1% (if necessary). The mixed effect of the pipeline, so that the salt in the crude oil is dissolved in the water, and it acts together with the demulsifier, which is beneficial to the desalination of the crude oil.
The secondary electric desalination tank is injected with fresh water, and the secondary electric desalination drainage is used as the primary electric desalination water injection. Considering the actual operation situation, both primary and secondary lines need to have double lines that can be injected with fresh water, and secondary drainage also needs to have double lines to drain directly to the sewage pipeline outside the tank.
The two-stage electric desalination process is adopted, one tank is one stage, and the desalination process flow is shown in the following figure:
Electrostatics Ccoalescence Technology
Most advancedtechnology in the world, which belongs only to us except that Norseland has the similar technology.We work with China's top petrochemical research institute, it has spent us more than 10years for research and practical application.Norseland used this technology in 10 places in the world, we used 4places about.Appropriate working condition:high water content of crude oil with high denseness.Working effect: High efficiency dehydration.
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Tahe crude oil
before desalination
Tahe crude oil
after water injection and mixing
Tahe crude oil
after desalination
Luoyang Zhengyuan Petrochemical Co., Ltd. is the first-level supplier of China National Offshore Oil Corporation and the supplier of Sinopec materials and equipment.
The company’s technology center is equipped with multiple (sets) simulation test devices such as electric desalting/dehydration simulation test platform, electrostatic coalescence electric dehydration test device, and sewage treatment experimental device, as well as complete inspection and testing instruments.
With AC and DC and pulse dual technology
Remarkable effect of energy saving and consumption reduction
Strong desalination ability, fast oil-water separation, and less amount of demulsifier
The operation fluctuation of the device is small and the stability is strong
Long lasting
Zhengyuan Petrochemical
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+861589659239
zypetrochem@gmail.com
No. 8, Xinxin Road, Luoxin Industrial Park, Xin'an County, Luoyang, China
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