CN102010744B - Device and method for crude oil desalting and dewatering - Google Patents
Device and method for crude oil desalting and dewatering Download PDFInfo
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- CN102010744B CN102010744B CN201010580019.XA CN201010580019A CN102010744B CN 102010744 B CN102010744 B CN 102010744B CN 201010580019 A CN201010580019 A CN 201010580019A CN 102010744 B CN102010744 B CN 102010744B
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Abstract
The invention provides a device and method for crude oil desalting and dewatering. The device comprises a crude oil pipe, a demulsifier storing device, an electro-desalting water storing device and an electro-desalting device, wherein the electro-desalting water storing device is connected to the electro-desalting device through a first pipe with a first valve; the demulsifier storing device is connected to the electro-desalting device through a second pipe; and the first pipe is connected with the second pipe through a second valve. By adopting the device and the method, when a water-soluble demulsifier is added into the demulsifier storing device, the second valve is opened, so that the water-soluble demulsifier is mixed with desalted water in the electro-desalting water storing device at first; compared with the prior art of directly adding the water-soluble demulsifier into crude oil, the dispersion strength of the demulsifier in the crude oil is enhanced since the demulsifier is fully mixed with the desalted water; and further the desalted water in which the demulsifier is dispersed is fully mixed with the crude oil, thus the demulsification effect and the crude oil desalting rate are obviously improved.
Description
Technical field
The present invention relates to a kind of petrochemical complex treatment facility and petrochemical complex treatment process, particularly a kind of Desalting and Dewatering from Crude Oil equipment and use this equipment to carry out the method for Desalting and Dewatering from Crude Oil.
Background technology
The moisture main harm of salt content in crud oil has following four aspects: (1) increases the load of accumulating, processing units, increases the consumption of power, heat energy and water coolant; (2) affect the normal running of atmospheric and vacuum distillation, easily cause and rush tower, blocking pipeline, burn the work accidents such as tube wall; (3) etching apparatus, shortens on-stream time; (4) poison catalyzer, affect secondary processing of raw material and quality product.Therefore, crude oil enters after refinery, must first carry out desalting and dewatering.
At present, in petrochemical industry, each refinery is all by electric desalting equipment desalination, dehydration, in order to strengthen the effect of desalination, dehydration, in crude oil, generally add water respectively and add emulsion splitter, but along with former oil properties is different with emulsion splitter kind, removal effect is also made a world of difference.
Equipment of the prior art is all that emulsion splitter is directly joined in crude oil pipeline, because add-on is smaller, conventionally be 100ppm (1,000,000/) with respect to crude oil, also be the emulsion splitter that every 1 ton of crude oil only needs 1kg, itself and the very unshapeliness of mixing of crude oil, be therefore difficult to play good demulsification, further, for water-soluble demulsifier, when it directly mixes with crude oil, consistency is poor, has also further increased breakdown of emulsion difficulty.
Summary of the invention
Technical problem to be solved by this invention is the equipment that is to provide a kind of new Desalting and Dewatering from Crude Oil, to improve the demulsification of crude oil, thereby further improves the ratio of desalinization of crude oil.
In order to solve the problems of the technologies described above, the invention provides a kind of Desalting and Dewatering from Crude Oil equipment, it is characterized in that, comprise: crude oil pipeline, emulsion splitter storing device, electric desalting water storage apparatus and electric desalting apparatus, wherein said electric desalting water storage apparatus is connected to described electric desalting apparatus by first pipeline with the first valve, described emulsion splitter storing device is connected to described electric desalting apparatus by second pipe, between described the first pipeline and described second pipe, connects by the second valve.Wherein, described electric desalting water storage apparatus can be directly connected on described electric desalting apparatus by described the first pipeline, also can be connected on described crude oil pipeline, further be connected on described electric desalting apparatus by described crude oil pipeline, described emulsion splitter storing device can be directly connected on described electric desalting apparatus by described second pipe, also can be connected on described crude oil pipeline, further be connected on described electric desalting apparatus by described crude oil pipeline.
In a preferred embodiment, on described the first pipeline, also there is electric desalting water injection pump, on described second pipe, also there is note emulsion splitter pump, on described second pipe, also there is the 3rd valve.
In another preferred embodiment, in described emulsion splitter storing device, inject emulsion splitter and de-mineralized water, described emulsion splitter and described de-mineralized water are first carried out to pre-mixing, be beneficial to the use of emulsion splitter.
In another preferred embodiment, Desalting and Dewatering from Crude Oil equipment also comprises the first crude oil heat exchange device that makes crude oil carry out heat exchange before the described electric desalting apparatus of arrival.
In another preferred embodiment, Desalting and Dewatering from Crude Oil equipment also comprises the second crude oil heat exchange device that the crude oil after electric desalting apparatus desalting and dewatering is carried out to heat exchange.
In another preferred embodiment, Desalting and Dewatering from Crude Oil equipment comprises: crude oil pipeline, emulsion splitter storing device, electric desalting water storage apparatus, electric desalting apparatus, the first crude oil heat exchange device, the second crude oil heat exchange device that the crude oil after described electric desalting apparatus desalting and dewatering is carried out to heat exchange, note emulsion splitter pump and electric desalting water injection pump; Described electric desalting water storage apparatus is connected on described crude oil pipeline by having the first pipeline of the first valve, and be further connected on described electric desalting apparatus by described crude oil pipeline, described emulsion splitter storing device is connected on described crude oil pipeline by having the second pipe of the 3rd valve, and be further connected on described electric desalting apparatus by described crude oil pipeline, between described the first pipeline and described second pipe, connect by the second valve;
The equipment of described Desalting and Dewatering from Crude Oil is in use:
Basis is wanted the corresponding emulsion splitter type of type selecting of the crude oil of desalting and dewatering in advance:
In the time selecting water-soluble demulsifier, keep described the first valve, described the second valve and described the 3rd valve closes, in described emulsion splitter storing device, inject de-mineralized water and water-soluble demulsifier, be uniformly mixed, the state that makes water-soluble demulsifier be diluted to solution is convenient to storage and is carried injected water in described electric desalting water storage apparatus, and water is carried out to desalting treatment, obtain de-salted water, with described note emulsion splitter pump, the water-soluble demulsifier after dilution is introduced in described second pipe, the de-salted water in described electric desalting water storage apparatus is introduced in described the first pipeline with described electric desalting water injection pump, open described the second valve, emulsion splitter is introduced in described the first pipeline with described note emulsion splitter pump, and fully mix with de-salted water in described the first pipeline, or de-salted water is introduced in described second pipe and fully mixed with emulsion splitter with described electric desalting water injection pump, in the process of crude oil being injected in described the first heat-exchanger rig to described electric desalting apparatus after heat exchange by described crude oil pipeline, if by emulsion splitter and the abundant mixed solution of de-salted water in described the first pipeline, open described the first valve, make solution inject described electric desalting apparatus through described crude oil pipeline, if by emulsion splitter and the mixed solution of de-salted water in described second pipe, open described the 3rd valve, make solution inject described electric desalting apparatus through described crude oil pipeline, in described electric desalting apparatus, crude oil is carried out to desalting and dewatering processing with the mixing solutions of water-soluble demulsifier and de-salted water, obtain crude oil after treatment, then enter described the second crude oil heat exchange device and carry out secondary heat exchange, to reach processing requirement index,
When the type selecting for crude oil be oil-soluble demulsifier time, keep described the first valve, described the second valve and described the 3rd valve closes, in described emulsion splitter storing device, inject de-mineralized water and oil-soluble demulsifier, be uniformly mixed, the state that makes oil-soluble demulsifier be diluted to solution is convenient to storage and is carried injected water in described electric desalting water storage apparatus, and water is carried out to desalting treatment, obtain de-salted water, in the process of crude oil being injected in described the first heat-exchanger rig to described electric desalting apparatus after heat exchange by described crude oil pipeline, with noting emulsion splitter pump, the oil-soluble demulsifier after dilution is introduced in described second pipe, open described the 3rd valve, make emulsion splitter inject described electric desalting apparatus through described crude oil pipeline, de-salted water in described electric desalting water storage apparatus is introduced in described the first pipeline with described electric desalting water injection pump, open described the 3rd valve, make de-salted water inject described electric desalting apparatus through described crude oil pipeline, in described electric desalting apparatus, crude oil is carried out to desalting and dewatering processing with oil-soluble demulsifier and de-salted water, obtaining crude oil after treatment enters described the second crude oil heat exchange device and carries out secondary heat exchange, to reach processing requirement index.
On the other hand, the present invention also provides a kind of method that adopts above-mentioned Desalting and Dewatering from Crude Oil equipment to carry out Desalting and Dewatering from Crude Oil, when breakdown of emulsion, when in described emulsion splitter storing device, add be water-soluble demulsifier time, open described the second valve, de-salted water in emulsion splitter and described electric desalting injection device is mixed in described second pipe, when in described emulsion splitter storing device, add be oil-soluble demulsifier time, close described the second valve.
In another preferred embodiment, when breakdown of emulsion, when in described emulsion splitter storing device, add be water-soluble demulsifier time, close in advance in front of the door described the first valve opening described second valve.
In another preferred embodiment, inject emulsion splitter in described emulsion splitter storing device time, dilute emulsion splitter with de-mineralized water.
In another preferred embodiment, described equipment comprises: crude oil pipeline, emulsion splitter storing device, electric desalting water storage apparatus, electric desalting apparatus, the first crude oil heat exchange device, the second crude oil heat exchange device that the crude oil after described electric desalting apparatus desalting and dewatering is carried out to heat exchange, note emulsion splitter pump and electric desalting water injection pump; Described electric desalting water storage apparatus is connected on described crude oil pipeline by having the first pipeline of the first valve, and be further connected on described electric desalting apparatus by described crude oil pipeline, described emulsion splitter storing device is connected on described crude oil pipeline by having the second pipe of the 3rd valve, and be further connected on described electric desalting apparatus by described crude oil pipeline, between described the first pipeline and described second pipe, connect by the second valve;
Said method comprising the steps of:
Basis is wanted the corresponding emulsion splitter type of type selecting of the crude oil of desalting and dewatering in advance:
In the time selecting water-soluble demulsifier, keep described the first valve, described the second valve and described the 3rd valve closes, in described emulsion splitter storing device, inject de-mineralized water and water-soluble demulsifier, be uniformly mixed, the state that makes water-soluble demulsifier be diluted to solution is convenient to storage and is carried injected water in described electric desalting water storage apparatus, and water is carried out to desalting treatment, obtain de-salted water, with described note emulsion splitter pump, the water-soluble demulsifier after dilution is introduced in described second pipe, the de-salted water of described electric desalting water storage apparatus Shen is introduced in described the first pipeline with described electric desalting water injection pump, open described the second valve, emulsion splitter is introduced in described the first pipeline with described note emulsion splitter pump, and fully mix with de-salted water in described the first pipeline, or de-salted water is introduced in described second pipe and fully mixed with emulsion splitter with described electric desalting water injection pump, in the process of crude oil being injected in described the first heat-exchanger rig to described electric desalting apparatus after heat exchange by described crude oil pipeline, if by emulsion splitter and the abundant mixed solution of de-salted water in described the first pipeline, open described the first valve, make solution inject described electric desalting apparatus through described crude oil pipeline, if by emulsion splitter and the mixed solution of de-salted water in described second pipe, open described the 3rd valve, make solution inject described electric desalting apparatus through described crude oil pipeline, in described electric desalting apparatus, crude oil is carried out to desalting and dewatering processing with the mixing solutions of water-soluble demulsifier and de-salted water, obtain the crude oil of desalting and dewatering, and then enter described the second crude oil heat exchange device and carry out secondary heat exchange, to reach processing requirement index,
When the type selecting for crude oil be oil-soluble demulsifier time, keep described the first valve, described the second valve and described the 3rd valve closes, in described emulsion splitter storing device, inject de-mineralized water and oil-soluble demulsifier, be uniformly mixed, the state that makes oil-soluble demulsifier be diluted to solution is convenient to storage and is carried injected water in described electric desalting water storage apparatus, and water is carried out to desalting treatment, obtain de-salted water, in the process of crude oil being injected in described the first heat-exchanger rig to described electric desalting apparatus after heat exchange by described crude oil pipeline, with described note emulsion splitter pump by dilution after oil-soluble demulsifier introduce in described second pipe, open described the 3rd valve, make emulsion splitter inject described electric desalting apparatus through described crude oil pipeline, de-salted water in described electric desalting water storage apparatus is introduced in described the first pipeline with described electric desalting water injection pump, open described the 3rd valve, make de-salted water inject described electric desalting apparatus through described crude oil pipeline, in described electric desalting apparatus, crude oil is carried out to desalting and dewatering processing with oil-soluble demulsifier and de-salted water, obtaining crude oil after treatment enters described the second crude oil heat exchange device and carries out secondary heat exchange, to reach processing requirement index.
The invention discloses a kind of Desalting and Dewatering from Crude Oil equipment and adopt this Desalting and Dewatering from Crude Oil equipment to carry out the method for Desalting and Dewatering from Crude Oil, because the consistency of water-soluble demulsifier and crude oil is poor, according to similar compatibility principle, when in emulsion splitter storing device, add be water-soluble demulsifier time, open the second valve, water-soluble demulsifier is first mixed with the de-salted water in electric desalting water storage apparatus, than water-soluble demulsifier is directly added in crude oil, because the content of de-salted water in crude oil is 5% to 8%, also be 1 ton of former oil require 50 to 80kg de-salted water, large many of content than emulsion splitter in crude oil, now emulsion splitter and fully mixing of de-salted water are increased to the dispersion intensity of emulsion splitter in crude oil, further make the de-salted water that is dispersed with emulsion splitter fully mix with crude oil, make so as much as possible the small molecule of a large amount of emulsion splitters and the small molecule of crude oil carry out combination, thereby significantly improve the ratio of desalinization of demulsification and crude oil.
Brief description of the drawings
Fig. 1 is embodiment of the present invention Desalting and Dewatering from Crude Oil equipment drawing.
Fig. 2 is prior art Desalting and Dewatering from Crude Oil equipment drawing.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how utilisation technology means solve technical problem whereby, and the implementation procedure of reaching technique effect can fully understand and implement according to this.
Embodiment
Fig. 1 is the de-equipment drawing of embodiment of the present invention crude oil desalting.As shown in Figure 1, Desalting and Dewatering from Crude Oil equipment of the present invention, comprise: crude oil pipeline 10, emulsion splitter storing device 1, electric desalting water storage apparatus 2, electric desalting apparatus 3, the first crude oil heat exchange device 9, crude oil after electric desalting apparatus 3 desalting and dewaterings is carried out to the second crude oil heat exchange device 13 of heat exchange, note emulsion splitter pump 4 and electric desalting water injection pump 5, wherein electric desalting water storage apparatus 2 is connected on crude oil pipeline 10 by first pipeline 11 with the first valve 6, further be connected on electric desalting apparatus 3 by crude oil pipeline 10, emulsion splitter storing device 1 is connected on crude oil pipeline 10 by having the second pipe 12 of the 3rd valve 8, further be connected on electric desalting apparatus 3 by crude oil pipeline 10, between the first pipeline 11 and second pipe 12, connect by the second valve 7.
First, basis is wanted the different emulsion splitter type of type selecting of the crude oil of desalting and dewatering in advance, in the time selecting water-soluble demulsifier, keep the first valve 6, the second valves 7 and the 3rd valve 8 to close, in emulsion splitter storing device 1, inject de-mineralized water and water-soluble demulsifier, fully be uniformly mixed, the state that makes water-soluble demulsifier be diluted to solution is convenient to storage and is carried injected water in electric desalting water storage apparatus 2, and water is carried out to desalting treatment, obtain de-salted water.
With note emulsion splitter pump 4, the water-soluble demulsifier after dilution is introduced in second pipe 12, electricity consumption de-salted water injection pump 5 is introduced the de-salted water in electric desalting water storage apparatus 2 in the first pipeline 11.Open the second valve 7, with noting emulsion splitter pump 4, emulsion splitter is introduced in the first pipeline 11, and fully mixed with de-salted water in the first pipeline 11, or electricity consumption de-salted water injection pump 5 is introduced de-salted water in second pipe 12 and fully mixed with emulsion splitter.
In the process of crude oil being injected in the first heat-exchanger rig 9 to electric desalting apparatus 3 after heat exchange by crude oil pipeline 10, if by emulsion splitter and the abundant mixed solution of de-salted water in the first pipeline 11, open the first valve 6, make solution inject electric desalting apparatus 3 through crude oil pipeline 10, if by emulsion splitter and the abundant mixed solution of de-salted water in second pipe 12, open the 3rd valve 8, make solution inject electric desalting apparatus 3 through crude oil pipeline 10, in electric desalting apparatus 3, crude oil is carried out to desalting and dewatering processing with the mixing solutions of water-soluble demulsifier and de-salted water, obtain the crude oil of desalting and dewatering after treatment, and then enter the second crude oil heat exchange device 13 and carry out secondary heat exchange, to reach processing requirement index.
When the type selecting for crude oil be oil-soluble demulsifier time, keep the first valve 6, the second valve 7 and the 3rd valve 8 are closed, in emulsion splitter storing device 1, inject de-mineralized water and oil-soluble demulsifier, fully be uniformly mixed, the state that makes oil-soluble demulsifier be diluted to solution is convenient to storage and is carried injected water in electric desalting water storage apparatus 2, and water is carried out to desalting treatment, obtain de-salted water.
In the process of crude oil being injected in the first heat-exchanger rig 9 to electric desalting apparatus 3 after heat exchange by crude oil pipeline 10, with noting emulsion splitter pump 4, the oil-soluble demulsifier after dilution is introduced in second pipe 12, open the 3rd valve 8, make emulsion splitter inject electric desalting apparatus 3 through crude oil pipeline 10, electricity consumption de-salted water injection pump 5 is introduced the de-salted water in electric desalting water storage apparatus 2 in the first pipeline 11, open the 3rd valve 8, make de-salted water inject electric desalting apparatus 3 through crude oil pipeline 10, in electric desalting apparatus 3, crude oil is carried out to desalting and dewatering processing with oil-soluble demulsifier and de-salted water, obtaining crude oil after treatment enters the second crude oil heat exchange device 13 and carries out secondary heat exchange, to reach processing requirement index.
Comparative example
Fig. 2 is existing Desalting and Dewatering from Crude Oil equipment drawing.As shown in Figure 2, Desalting and Dewatering from Crude Oil equipment, comprise: crude oil pipeline 10, emulsion splitter storing device 1, electric desalting water storage apparatus 2, electric desalting apparatus 3, the first crude oil heat exchange device 9, crude oil after electric desalting apparatus 3 desalting and dewaterings is carried out to the second crude oil heat exchange device 13 of heat exchange, note emulsion splitter pump 4 and electric desalting water injection pump 5, wherein electric desalting water storage apparatus 2 is connected on crude oil pipeline 10 by first pipeline 11 with the first valve 6, further be connected on electric desalting apparatus 3 by crude oil pipeline 10, emulsion splitter storing device 1 is connected on crude oil pipeline 10 by having the second pipe 12 of the 3rd valve 8, further be connected on electric desalting apparatus 3 by crude oil pipeline 10.
Adopt the Desalting and Dewatering from Crude Oil equipment shown in Fig. 2, no matter adopt water-soluble demulsifier or oil-soluble demulsifier, all adopt following processing step.First, keep the first valve 6 and the 3rd valve 8 to close, in emulsion splitter storing device 1, inject de-mineralized water and oil-soluble demulsifier, fully be uniformly mixed, the state that makes emulsion splitter be diluted to solution is convenient to storage and is carried, injected water in electric desalting water storage apparatus 2, and water is carried out to desalting treatment, obtain de-salted water.
In the process of crude oil being injected in the first heat-exchanger rig 9 to electric desalting apparatus 3 after heat exchange by crude oil pipeline 10, with noting emulsion splitter pump 4, the emulsion splitter after dilution is introduced in second pipe 12, open the 3rd valve 8, make emulsion splitter inject electric desalting apparatus 3 through crude oil pipeline 10, electricity consumption de-salted water injection pump 5 is introduced the de-salted water in electric desalting water storage apparatus 2 in the first pipeline 11, open the 3rd valve 8, make de-salted water inject electric desalting apparatus 3 through crude oil pipeline 10, in electric desalting apparatus 3, crude oil is carried out to desalting and dewatering processing with emulsion splitter and de-salted water, obtaining crude oil after treatment enters the second crude oil heat exchange device 13 and carries out heat exchange, to reach processing requirement index.
Through comparing, we find, adopt existing Desalting and Dewatering from Crude Oil equipment and Desalting and Dewatering from Crude Oil method, in the time using water-soluble demulsifier, the ratio of desalinization of the crude oil obtaining is 35% to 45%, and adopts Desalting and Dewatering from Crude Oil equipment of the present invention and Desalting and Dewatering from Crude Oil method, in the time using water-soluble demulsifier, the ratio of desalinization of the crude oil obtaining is 90%, and therefore Desalting and Dewatering from Crude Oil equipment of the present invention and Desalting and Dewatering from Crude Oil method are than prior art, and effect obtains significant raising.
Claims (2)
1. the equipment of a Desalting and Dewatering from Crude Oil, it is characterized in that, comprise: crude oil pipeline, emulsion splitter storing device, electric desalting water storage apparatus and electric desalting apparatus, described electric desalting water storage apparatus is connected to described electric desalting apparatus by first pipeline with the first valve, and described emulsion splitter storing device is connected to described electric desalting apparatus by second pipe, between described the first pipeline and second pipe, connects by the second valve;
On described the first pipeline, also there is electric desalting water injection pump; On described second pipe, also there is note emulsion splitter pump; On described second pipe, also there is the 3rd valve;
In described emulsion splitter storing device, inject emulsion splitter and de-mineralized water, described emulsion splitter and described de-mineralized water are first carried out to pre-mixing, be beneficial to the use of emulsion splitter;
Described equipment also comprises the first crude oil heat exchange device that makes crude oil carry out heat exchange before the described electric desalting apparatus of arrival;
Described equipment also comprises the second crude oil heat exchange device that the crude oil after electric desalting apparatus desalting and dewatering is carried out to heat exchange;
Described equipment, comprising: crude oil pipeline, emulsion splitter storing device, electric desalting water storage apparatus, electric desalting apparatus, the first crude oil heat exchange device, crude oil after electric desalting apparatus desalting and dewatering is carried out to the second crude oil heat exchange device of heat exchange, note emulsion splitter pump and electric desalting water injection pump; Described electric desalting water storage apparatus is connected on described crude oil pipeline by having the first pipeline of the first valve, and be further connected on described electric desalting apparatus by described crude oil pipeline, described emulsion splitter storing device is connected on described crude oil pipeline by having the second pipe of the 3rd valve, and be further connected on described electric desalting apparatus by described crude oil pipeline, between described the first pipeline and described second pipe, connect by the second valve;
The equipment of described Desalting and Dewatering from Crude Oil is in use:
Basis is wanted the corresponding emulsion splitter type of type selecting of the crude oil of desalting and dewatering in advance:
In the time selecting water-soluble demulsifier, keep described the first valve, described the second valve and described the 3rd valve closes, in described emulsion splitter storing device, inject de-mineralized water and water-soluble demulsifier, be uniformly mixed, the state that makes water-soluble demulsifier be diluted to solution is convenient to storage and is carried injected water in described electric desalting water storage apparatus, and water is carried out to desalting treatment, obtain de-salted water, with described note emulsion splitter pump, the water-soluble demulsifier after dilution is introduced in described second pipe, the de-salted water in described electric desalting water storage apparatus is introduced in described the first pipeline with described electric desalting water injection pump, open described the second valve, emulsion splitter is introduced in described the first pipeline with described note emulsion splitter pump, and fully mix with de-salted water in described the first pipeline, or de-salted water is introduced in described second pipe and fully mixed with emulsion splitter with described electric desalting water injection pump, in the process of crude oil being injected in described the first heat-exchanger rig to described electric desalting apparatus after heat exchange by described crude oil pipeline, if by emulsion splitter and the abundant mixed solution of de-salted water in described the first pipeline, open described the first valve, make solution inject described electric desalting apparatus through described crude oil pipeline, if by emulsion splitter and the mixed solution of de-salted water in described second pipe, open described the 3rd valve, make solution inject described electric desalting apparatus through described crude oil pipeline, in described electric desalting apparatus, crude oil is carried out to desalting and dewatering processing with the mixing solutions of water-soluble demulsifier and de-salted water, obtain the crude oil of desalting and dewatering after treatment, and then enter described the second crude oil heat exchange device and carry out secondary heat exchange, to reach processing requirement index,
When the type selecting for crude oil be oil-soluble demulsifier time, keep described the first valve, described the second valve and described the 3rd valve closes, in described emulsion splitter storing device, inject de-mineralized water and oil-soluble demulsifier, be uniformly mixed, the state that makes oil-soluble demulsifier be diluted to solution is convenient to storage and is carried injected water in described electric desalting water storage apparatus, and water is carried out to desalting treatment, obtain de-salted water, in the process of crude oil being injected in described the first heat-exchanger rig to described electric desalting apparatus after heat exchange by described crude oil pipeline, with described note emulsion splitter pump by dilution after oil-soluble demulsifier introduce in described second pipe, open described the 3rd valve, make emulsion splitter inject described electric desalting apparatus through described crude oil pipeline, de-salted water in described electric desalting water storage apparatus is introduced in described the first pipeline with described electric desalting water injection pump, open described the first valve, make de-salted water inject described electric desalting apparatus through described crude oil pipeline, in described electric desalting apparatus, crude oil is carried out to desalting and dewatering processing with oil-soluble demulsifier and de-salted water, obtaining crude oil after treatment enters described the second crude oil heat exchange device and carries out secondary heat exchange, to reach processing requirement index.
2. one kind adopts the Desalting and Dewatering from Crude Oil method of equipment described in claim 1, it is characterized in that: when breakdown of emulsion, when in described emulsion splitter storing device, add be water-soluble demulsifier time, open described the second valve, de-salted water in emulsion splitter and described electric desalting injection device is mixed in described the first pipeline or described second pipe, when in described emulsion splitter storing device, add be oil-soluble demulsifier time, close described the second valve;
When breakdown of emulsion, when in described emulsion splitter storing device, add be water-soluble demulsifier time, close in advance in front of the door described the first valve opening described second valve;
Inject emulsion splitter in described emulsion splitter storing device time, dilute emulsion splitter with de-mineralized water;
Described equipment comprises: crude oil pipeline, emulsion splitter storing device, electric desalting water storage apparatus, electric desalting apparatus, the first crude oil heat exchange device, the second crude oil heat exchange device that the crude oil after described electric desalting apparatus desalting and dewatering is carried out to heat exchange, note emulsion splitter pump and electric desalting water injection pump; Described electric desalting water storage apparatus is connected on described crude oil pipeline by having the first pipeline of the first valve, and be further connected on described electric desalting apparatus by described crude oil pipeline, described emulsion splitter storing device is connected on described crude oil pipeline by having the second pipe of the 3rd valve, and be further connected on described electric desalting apparatus by described crude oil pipeline, between described the first pipeline and described second pipe, connect by the second valve;
Said method comprising the steps of:
Basis is wanted the corresponding emulsion splitter type of type selecting of the crude oil of desalting and dewatering in advance:
In the time selecting water-soluble demulsifier, keep described the first valve, described the second valve and described the 3rd valve closes, in described emulsion splitter storing device, inject de-mineralized water and water-soluble demulsifier, be uniformly mixed, the state that makes water-soluble demulsifier be diluted to solution is convenient to storage and is carried injected water in described electric desalting water storage apparatus, and water is carried out to desalting treatment, obtain de-salted water, with described note emulsion splitter pump, the water-soluble demulsifier after dilution is introduced in described second pipe, the de-salted water in described electric desalting water storage apparatus is introduced in described the first pipeline with described electric desalting water injection pump, open described the second valve, emulsion splitter is introduced in described the first pipeline with described note emulsion splitter pump, and fully mix with de-salted water in described the first pipeline, or de-salted water is introduced in described second pipe and fully mixed with emulsion splitter with described electric desalting water injection pump, in the process of crude oil being injected in described the first heat-exchanger rig to described electric desalting apparatus after heat exchange by described crude oil pipeline, if by emulsion splitter and the abundant mixed solution of de-salted water in described the first pipeline, open described the first valve, make solution inject described electric desalting apparatus through described crude oil pipeline, if by emulsion splitter and the mixed solution of de-salted water in described second pipe, open described the 3rd valve, make solution inject described electric desalting apparatus through described crude oil pipeline, in described electric desalting apparatus, crude oil is carried out to desalting and dewatering processing with the mixing solutions of water-soluble demulsifier and de-salted water, obtain the crude oil of desalting and dewatering after treatment, and then enter the second crude oil heat exchange device and carry out secondary heat exchange, to reach processing requirement index,
When the type selecting for crude oil be oil-soluble demulsifier time, keep described the first valve, described the second valve and described the 3rd valve closes, in described emulsion splitter storing device, inject de-mineralized water and oil-soluble demulsifier, be uniformly mixed, the state that makes oil-soluble demulsifier be diluted to solution is convenient to storage and is carried injected water in described electric desalting water storage apparatus, and water is carried out to desalting treatment, obtain de-salted water, in the process of crude oil being injected in described the first heat-exchanger rig to described electric desalting apparatus after heat exchange by described crude oil pipeline, with described note emulsion splitter pump by dilution after oil-soluble demulsifier introduce in described second pipe, open described the 3rd valve, make emulsion splitter inject described electric desalting apparatus through described crude oil pipeline, de-salted water in described electric desalting water storage apparatus is introduced in described the first pipeline with described electric desalting water injection pump, open described the first valve, make de-salted water inject described electric desalting apparatus through described crude oil pipeline, in described electric desalting apparatus, crude oil is carried out to desalting and dewatering processing with oil-soluble demulsifier and de-salted water, obtaining crude oil after treatment enters described the second crude oil heat exchange device and carries out secondary heat exchange, to reach processing requirement index.
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| CN105419854B (en) * | 2015-11-17 | 2017-05-10 | 中石化节能环保工程科技有限公司 | Demulsifying agent filling system |
| CN108929718B (en) * | 2017-05-26 | 2020-12-01 | 中国石油天然气股份有限公司 | Desalting system and crude oil desalting method |
| CN108929716B (en) * | 2017-05-26 | 2020-12-01 | 中国石油天然气股份有限公司 | Crude oil desalting system and method |
| CN110317634B (en) * | 2019-08-07 | 2021-06-29 | 中石化炼化工程（集团）股份有限公司 | Crude oil dehydration and desalination treatment system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4384950A (en) * | 1981-12-02 | 1983-05-24 | Texaco Inc. | Demulsification of bitumen emulsions using branched water soluble quaternary ammonium-containing polymers |
| CN1772845A (en) * | 2005-10-24 | 2006-05-17 | 扬子石油化工股份有限公司 | Raw oil dewatering and desalting process |
| CN101760232A (en) * | 2010-01-06 | 2010-06-30 | 中国石油化工股份有限公司 | Dynamic electric desalting and dewatering test device and electric desalting and dewatering system |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4384950A (en) * | 1981-12-02 | 1983-05-24 | Texaco Inc. | Demulsification of bitumen emulsions using branched water soluble quaternary ammonium-containing polymers |
| CN1772845A (en) * | 2005-10-24 | 2006-05-17 | 扬子石油化工股份有限公司 | Raw oil dewatering and desalting process |
| CN101760232A (en) * | 2010-01-06 | 2010-06-30 | 中国石油化工股份有限公司 | Dynamic electric desalting and dewatering test device and electric desalting and dewatering system |
Non-Patent Citations (3)
| Title |
|---|
| 唐孟海等.11.电脱盐的工艺流程包括哪些内容.《常减压蒸馏装置技术问答》.中国石化出版社,2006,第61-62页. * |
| 张林等.高效破乳剂在原油脱盐装置上的应用.《石油化工腐蚀与防护》.2004,第21卷(第3期),第33-36页. |
| 高效破乳剂在原油脱盐装置上的应用;张林等;《石油化工腐蚀与防护》;20041231;第21卷(第3期);第33-36页 * |
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