CN110982563A - Efficient crude oil natural gas hydrogen sulfide removal device and hydrogen sulfide removal method thereof - Google Patents

Efficient crude oil natural gas hydrogen sulfide removal device and hydrogen sulfide removal method thereof Download PDF

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Publication number
CN110982563A
CN110982563A CN201911208907.6A CN201911208907A CN110982563A CN 110982563 A CN110982563 A CN 110982563A CN 201911208907 A CN201911208907 A CN 201911208907A CN 110982563 A CN110982563 A CN 110982563A
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hydrogen sulfide
natural gas
reactor
section
inlet
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CN110982563B (en
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翟常忠
阎尔平
牛占山
万晓东
高武
刘世昌
唐青隽
胥猛
沈开元
喻友均
袁陶
王爱华
高山
张新平
陆晓鹏
黄茂生
姚建江
陈涛
郭辉
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翟常忠
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10Working-up natural gas or synthetic natural gas
    • C10L3/101Removal of contaminants
    • C10L3/102Removal of contaminants of acid contaminants
    • C10L3/103Sulfur containing contaminants

Abstract

The invention relates to the technical field of oil field hydrogen sulfide removal, in particular to a high-efficiency crude oil and natural gas hydrogen sulfide removal device and a hydrogen sulfide removal method thereof. The invention integrates the advantages of a kettle reactor, an injection reactor and a tower reactor, can be used as a stripping tower for removing hydrogen sulfide in crude oil, and can also be used as an efficient reactor for realizing crude desulfurization and fine desulfurization of natural gas, coal gas and methane; when the hydrogen sulfide in gas phases such as natural gas and the like is removed, the mass transfer efficiency of the natural gas and the desulfurization liquid can be improved, the effect of removing the hydrogen sulfide is improved, particularly, the mass transfer effect is obvious when the high mass transfer jet reactor is used, and the mass transfer effect of one high mass transfer jet reactor is equal to that of four kettle-type reactors, so that the device has smaller volume.

Description

Efficient crude oil natural gas hydrogen sulfide removal device and hydrogen sulfide removal method thereof
Technical Field
The invention relates to the technical field of oil field hydrogen sulfide removal devices, in particular to a high-efficiency crude oil natural gas hydrogen sulfide removal device and a hydrogen sulfide removal method thereof.
Background
Petroleum natural gas, coal bed gas and methane are often corroded due to the presence of hydrogen sulfide, so that operators are in dangerous working environments, hydrogen sulfide poisoning safety accidents are easy to happen, and safety production is greatly damaged.
When the content of hydrogen sulfide is more than 500ppm, the recovery value of fuels such as natural gas, coal bed gas, methane and the like is often lost, and the ignition torch generates sulfur dioxide to pollute the environment; crude oil is also costly due to the injection of large quantities of expensive desulfurization agents.
In oil and gas field exploitation, especially edge trial production wells have no pipe network to enter a system, most of natural gas is discharged and burnt, and the crude oil is added with a liquid desulfurizer and transported back to a combined station for treatment, so that great energy waste is caused.
Most of the existing hydrogen sulfide removal devices have low mass transfer efficiency, but the mass transfer efficiency of the hypergravity machine during hydrogen sulfide removal is high, but the mass of the dynamic seal is not high, so that the existing hydrogen sulfide removal devices are not suitable for the hydrogen sulfide removal working condition of more than 0.5 MPa.
In the existing wet desulphurization device, the complex iron has long process flow, the device is large and difficult to skid-mount, the cost is high because 304 stainless steel is required to be manufactured, the energy consumption is high, and the reaction temperature needs to be maintained by heating during heat dissipation in winter in the north.
Disclosure of Invention
The invention provides a high-efficiency crude oil natural gas hydrogen sulfide removal device and a hydrogen sulfide removal method thereof, overcomes the defects of the prior art, and can effectively solve the problems of low mass transfer efficiency and large device volume of the existing hydrogen sulfide device.
One of the technical schemes of the invention is realized by the following measures: a high-efficiency crude oil and natural gas hydrogen sulfide removal device comprises a high mass transfer injection reactor, a tower reactor shell and a kettle reactor shell, wherein a bottom port of the tower reactor shell is fixedly communicated with a top port of the kettle reactor shell, at least one lower feed port is distributed on the side wall of the upper end of the kettle reactor shell at intervals along the circumference, a high mass transfer injection reactor is arranged on each lower feed port, a mixed medium outlet of the high mass transfer injection reactor is communicated with the lower feed port, a discharge port is arranged on the side wall of the lower part of the kettle reactor shell, a mist catcher, a first distributor and a second distributor are arranged in the tower reactor shell at intervals from top to bottom, a filling cavity is formed in the tower reactor shell between the first distributor and the second distributor, a filler is filled in the filling cavity, and an upper inlet is arranged on the side wall of the tower reactor shell between the mist catcher and the first distributor, a natural gas outlet is arranged on the tower reactor shell above the mist catcher; the wall surface of the shell of the kettle type reactor is provided with a heat exchange coil.
The following is a further optimization or/and improvement of one of the above-mentioned technical solutions of the invention:
the high mass transfer injection reactor comprises a pipe body, wherein the pipe body comprises an inlet section, an injection section, a mixing section, a diffusion section and a working section, the injection section is in an elbow shape, the left end of the inlet section is fixed and communicated with the right end of the injection section, the lower end of the injection section is fixed and communicated with the upper end of the mixing section, the lower end of the mixing section is fixed and communicated with the upper end of the diffusion section, the lower end outlet of the working section is fixed and communicated with the bending section of the injection section, the lower end outlet of the working section faces the mixing section, and the right end of the working section is provided with a working fluid inlet; the right port of the inlet section is a gas inlet to be treated, the lower port of the diffuser section is a mixed medium outlet, the side wall of the inlet section is provided with at least one first desulfurization liquid inlet vertical to the gas inlet to be treated, the side wall of the mixing section is provided with at least one second desulfurization liquid inlet vertical to the mixed medium outlet, and the side wall of the diffuser section is provided with at least one third desulfurization liquid inlet vertical to the mixed medium outlet.
The first desulfurization liquid inlet is arranged on the side wall of the inlet section close to the gas inlet to be treated; or/and the second desulfurization liquid inlet is arranged on the side wall of the mixing section close to the inlet of the mixing section; or/and the third desulfurization liquid inlet is arranged on the side wall of the diffusion section close to the inlet of the diffusion section; or/and the working section is provided with an adjusting device capable of adjusting the working fluid to enter the working section. The adjusting device is a manual or electric adjusting valve which is fixedly arranged at the upper port of the working section.
A feeding pipeline is fixedly communicated with the lower feeding hole, the inlet end of the feeding pipeline is communicated with the mixed medium outlet of the high mass transfer injection reactor, a dry gas inlet pipeline is communicated with the feeding pipeline between the high mass transfer injection reactor and the lower feeding hole, and a valve is connected in series with the dry gas inlet pipeline; or/and an end enclosure is fixed at the upper end of the kettle type reactor shell, a bottom port of the tower type reactor shell is fixedly communicated with a top port of the end enclosure, and a lower feeding hole is formed in the side wall of the end enclosure; or/and a steam inlet is arranged on the side wall of the shell of the tower reactor between the upper feed inlet and the mist catcher; or/and a drain outlet is arranged at the bottom of the shell of the kettle type reactor.
The second technical scheme of the invention is realized by the following measures: a method for removing hydrogen sulfide by using the high-efficiency crude oil natural gas hydrogen sulfide removal device in the technical proposal, when removing hydrogen sulfide in natural gas, the mixed medium formed by mixing and mass transferring the natural gas containing hydrogen sulfide and the desulfurization solution in the high mass transfer jet reactor enters the shell of the kettle reactor through the lower feed inlet, after the mixed medium is subjected to gas-liquid separation in the shell of the kettle reactor, the natural gas containing the partially atomized desulfurization liquid is used as a gas phase, the desulfurization liquid is used as a liquid phase, and after the desulfurization liquid is discharged from a discharge hole, then enters the shell of the tower reactor from the feeding port, the descending desulfurization liquid and the ascending natural gas reversely contact, transfer mass and react at the position of the filler to further remove the hydrogen sulfide in the natural gas, after the mass transfer reaction, the natural gas is discharged from a natural gas outlet, the desulfurization liquid is discharged from a discharge hole, and the discharged desulfurization liquid can also enter the high mass transfer injection reactor for reuse.
The following is further optimization or/and improvement of the second technical scheme of the invention:
the desulfurization solution is atomized in the high mass transfer spray reactor, the desulfurization solution part entering the shell of the kettle reactor is still in a fog shape, and the fog-shaped desulfurization solution enters the shell of the tower reactor along with natural gas and is captured by a mist catcher; the foamed desulfurization solution completes defoaming when passing through the first distributor, the filler and the second distributor in the shell of the tower reactor.
The natural gas containing hydrogen sulfide is firstly subjected to mass transfer and reaction with the desulfurization solution in the high mass transfer jet reactor, and the process of removing hydrogen sulfide of the natural gas containing hydrogen sulfide in the high mass transfer jet reactor comprises the following steps: the natural gas to be subjected to hydrogen sulfide removal enters from a gas inlet to be treated of an inlet section, simultaneously, the desulfurization liquid is fed into a first desulfurization liquid inlet, a second desulfurization liquid inlet and a third desulfurization liquid inlet, the high-pressure natural gas extracted underground is used as working fluid of a working section and enters the working section from the working fluid inlet, the inlet section is used as a primary atomizing chamber, the mixing section is used as a secondary atomizing chamber, the diffusion section is used as a tertiary atomizing chamber, the natural gas containing hydrogen sulfide is firstly atomized in the primary atomizing chamber and is dispersed into liquid drops through atomization, so that the contact area between the natural gas containing hydrogen sulfide and the desulfurization liquid is increased, the natural gas containing hydrogen sulfide and the desulfurization liquid are firstly and efficiently mixed for mass transfer, more hydrogen sulfide reacts with the desulfurization liquid, and then the natural gas containing hydrogen sulfide passes through a drainage section and enters the mixing section for secondary atomization; when the natural gas after the first mixed mass transfer passes through the drainage section, the natural gas is mixed with the high-pressure natural gas in the working section and then enters the mixing section, the kinetic energy of the high-pressure natural gas is large, the collision chance between molecules of the high-pressure natural gas is higher, and the high-pressure natural gas is mixed with the natural gas containing hydrogen sulfide after the first mixed mass transfer and then enters the kettle-type reactor shell from the mixed medium outlet through the feed opening with the mixed medium formed after the second atomization and the third atomization of the high-pressure natural gas and the desulfurization liquid.
And when the sulfur paste slurry is formed at the inner bottom of the shell of the kettle type reactor, discharging the settled sulfur paste slurry through a drain outlet and filtering, wherein most of the filtered liquid is the desulfurization liquid, and pumping the filtered desulfurization liquid to a high-mass transfer injection reactor and an upper feed inlet for recycling.
When the hydrogen sulfide in the crude oil is removed, the high mass transfer injection reactor is closed, dry gas enters the kettle type reactor shell from a dry gas inlet pipeline, the crude oil containing the hydrogen sulfide enters the tower type reactor shell through a feeding port, the crude oil containing the hydrogen sulfide and the dry gas are in reverse contact at the first distributor, the filler and the second distributor, the hydrogen sulfide is absorbed through mass transfer, the dry gas after the hydrogen sulfide is absorbed flows out from a natural gas outlet, and the crude oil after the hydrogen sulfide is removed is discharged through a discharging port.
The invention integrates the advantages of a kettle reactor, an injection reactor and a tower reactor, can be used as a stripping tower for removing hydrogen sulfide in crude oil, and can also be used as an efficient reactor for realizing crude desulfurization and fine desulfurization of natural gas, coal gas and methane; when the hydrogen sulfide in gas phases such as natural gas and the like is removed, the mass transfer efficiency of the natural gas and the desulfurization liquid can be improved, the effect of removing the hydrogen sulfide is improved, particularly, the mass transfer effect is obvious when the high mass transfer jet reactor is used, and the mass transfer effect of one high mass transfer jet reactor is equal to that of four kettle-type reactors, so that the device has smaller volume.
Drawings
FIG. 1 is a schematic structural diagram of a high mass transfer injection reactor in a front view.
Fig. 2 is a schematic front view of the present invention.
The codes in the figures are respectively: the device comprises a shell, a working section, a working fluid inlet, a gas inlet, a mixed medium outlet, a first desulfurization liquid inlet, a second desulfurization liquid inlet, a third desulfurization liquid inlet, a first-stage atomizing chamber, a second-stage atomizing chamber, a third-stage atomizing chamber, a regulating device, a high mass transfer injection reactor, a tower-type reactor shell, a kettle-type reactor shell, a lower feed port, a discharge port, a mist catcher, a first distributor, a second distributor, a filler, an upper feed port, a natural gas outlet, a feeding pipeline, a dry gas inlet pipeline, a seal head, a steam inlet, a drain outlet, a liquid level meter mounting port and a heat exchange coil, wherein the inlet is 1, the inlet section, the injection section, the mixed medium outlet, the mixed medium inlet, the first desulfurization liquid inlet, the second desulfurization liquid outlet, the third-stage atomizing chamber, the.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention is further described with reference to the following examples and figures:
as shown in attached figures 1 and 2, the high-efficiency crude oil and natural gas hydrogen sulfide removal device comprises a high mass transfer jet reactor 16, a tower reactor shell 17 and a kettle type reactor shell 18, wherein a bottom port of the tower reactor shell 17 is fixedly communicated with a top port of the kettle type reactor shell 18, at least one lower feed port 19 is circumferentially distributed on the side wall of the upper end of the kettle type reactor shell 18 at intervals, each lower feed port 19 is provided with a high mass transfer jet reactor 16, a mixed medium outlet 8 of the high mass transfer jet reactor 16 is communicated with the lower feed port 19, a discharge port 20 is arranged on the side wall of the lower part of the kettle type reactor shell 18, mist traps 21, first distributors 22 and second distributors 23 are arranged in the tower type reactor shell 17 at intervals from top to bottom, filling cavities are formed in the tower type reactor shell 17 between the first distributors 22 and the second distributors 23, the filling cavity is filled with a filler 24, an upper feeding port 25 is arranged on the side wall of the tower reactor shell 17 between the mist catcher 21 and the first distributor 22, and a natural gas outlet 26 is arranged on the tower reactor shell 17 above the mist catcher 21; the wall surface of the shell 18 of the tank reactor is provided with a heat exchange coil 33.
When the high-efficiency crude oil natural gas hydrogen sulfide removal device is used for removing hydrogen sulfide in natural gas, mixed media formed by mixing and mass transferring of the natural gas containing hydrogen sulfide and desulfurization liquid in the high-mass transfer injection reactor 16 enter the kettle-type reactor shell 18 through the lower feed inlet 19, after the mixed media are subjected to gas-liquid separation in the kettle-type reactor shell 18, the obtained natural gas containing the partially atomized desulfurization liquid is used as a gas phase, the desulfurization liquid is used as a liquid phase, and after the desulfurization liquid is discharged from a discharge hole 20, then enters the shell 17 of the tower reactor from the upper feed port 25, the descending desulfurization liquid and the ascending natural gas reversely contact, transfer and react at the position of the filler 24 to further remove the hydrogen sulfide in the natural gas, after the mass transfer reaction, the natural gas is discharged from the natural gas outlet 26, the desulfurization liquid is discharged from the discharge port 20, alternatively, the discharged desulfurization solution can be fed into the high mass transfer spray reactor 16 at the same time for reuse.
The desulfurization solution is atomized in the high mass transfer spray reactor 16, the desulfurization solution part entering the kettle type reactor shell 18 is still in a fog shape, and the fog-shaped desulfurization solution enters the tower type reactor shell 17 along with natural gas and is captured by the mist catcher 21; the foamed desulfurization solution completes defoaming while passing through the first distributor 22, the packing 24 and the second distributor 23 inside the column reactor shell 17.
The device integrates the advantages of the kettle type reactor, the jet reactor and the tower type reactor, can improve the mass transfer efficiency of natural gas and desulfurization liquid, and improve the effect of removing hydrogen sulfide, particularly the mass transfer effect of the high mass transfer jet reactor 16 is obvious, and the mass transfer effect of one high mass transfer jet reactor 16 is equal to that of four kettle type reactors, so that the volume of the device is smaller, and the manufacturing cost of the device is not higher than that of a reactor (comprising the tower type reactor, the kettle type reactor and the like) for removing the sulfur by adopting 304 stainless steel even if the device is made of 316 stainless steel with the manufacturing cost higher than 304 stainless steel.
The device can use different liquid desulfurizer technologies and has a defoaming function.
Heat exchange coil 33 may heat or cool the medium within tank reactor shell 18.
The high-efficiency crude oil and natural gas hydrogen sulfide removal device can be further optimized or/and improved according to actual needs:
as shown in fig. 2, a feeding line 27 is fixedly communicated with the lower feeding port 19, the inlet end of the feeding line 27 is communicated with the mixed medium outlet 8 of the high mass transfer spray reactor 16, a dry gas inlet line 28 is communicated with the feeding line 27 between the high mass transfer spray reactor 16 and the lower feeding port 19, and a valve is connected in series with the dry gas inlet line 28. To facilitate control of the use of the high mass transfer spray reactor 16, a switch valve may be provided on the feed line 27 between the dry gas inlet line 28 and the inlet end of the feed line 27.
When the device is used for removing hydrogen sulfide by stripping crude oil, the high mass transfer injection reactor 16 is closed, dry gas enters the kettle type reactor shell 18 from a dry gas inlet pipeline 28, crude oil containing hydrogen sulfide enters the tower type reactor shell 17 through an upper feed port 25, the crude oil containing hydrogen sulfide and the dry gas reversely contact and carry out mass transfer absorption on the hydrogen sulfide at the first distributor 22, the filler 24 and the second distributor 23, the dry gas absorbing the hydrogen sulfide flows out from a natural gas outlet 26, and the crude oil removing the hydrogen sulfide is discharged out of the device through a discharge port 20.
The dry gas after absorbing the hydrogen sulfide is used as the object to be removed of the hydrogen sulfide and enters the high mass transfer injection reactor 16 to remove the hydrogen sulfide.
As shown in the attached figure 2, a seal head 29 is fixed at the upper end of the tank reactor shell 18, a bottom port of the tower reactor shell 17 is fixedly communicated with a top port of the seal head 29, and a lower feed port 19 is arranged on the side wall of the seal head 29.
As shown in FIG. 2, a steam inlet 30 is formed on the side wall of the tower reactor shell 17 between the upper feed port 25 and the mist trap 21; a drain outlet 31 is arranged at the bottom of the tank reactor shell 18.
When sulfur paste slurry is formed at the bottom in the kettle-type reactor shell 18, the settled sulfur paste slurry is pumped to a filtering system through a drain outlet 31 for filtering, most of filtrate obtained by filtering is desulfurization solution, and the desulfurization solution obtained by filtering is pumped to a high-mass transfer injection reactor 16 and an upper feed inlet 25 for recycling.
When the packing 24 or internals in the column reactor shell 17 are to be steam purged, a steam purge is introduced through the steam inlet 30.
As shown in the attached figure 1, the high mass transfer injection reactor comprises a pipe body, the pipe body comprises an inlet section 1, an injection section 2, a mixing section 3, a diffusion section 4 and a working section 5, the injection section 2 is in an elbow shape, the left end of the inlet section 1 is fixed and communicated with the right end of the injection section 2, the lower end of the injection section 2 is fixed and communicated with the upper end of the mixing section 3, the lower end of the mixing section 3 is fixed and communicated with the upper end of the diffusion section 4, the lower end outlet of the working section 5 is fixed and communicated with the bending section of the injection section 2, the lower end outlet of the working section 5 faces the mixing section 3, and the right end of the working section 5 is provided with a working fluid inlet 6; the right port of the inlet section 1 is a gas inlet 7 to be treated, the lower port of the diffuser section 4 is a mixed medium outlet 8, the side wall of the inlet section 1 is provided with at least one first desulfurization liquid inlet 9 vertical to the gas inlet 7 to be treated, the side wall of the mixer section 3 is provided with at least one second desulfurization liquid inlet 10 vertical to the mixed medium outlet 8, and the side wall of the diffuser section 4 is provided with at least one third desulfurization liquid inlet 11 vertical to the mixed medium outlet 8.
The high mass transfer jet reactor is applied to removing hydrogen sulfide in natural gas, coal gas and methane, and has the working process as follows:
taking natural gas containing hydrogen sulfide as an example, the natural gas to be desulfurized enters from a gas inlet 7 to be treated of an inlet section 1, simultaneously, the desulfurization liquid is fed into a first desulfurization liquid inlet 9, a second desulfurization liquid inlet 10 and a third desulfurization liquid inlet 11, the natural gas with high pressure (more than 0.5 MPa) extracted underground is taken as working fluid of a working section 5 and enters the working section 5 from a working fluid inlet 6, the inlet section 1 is taken as a primary atomizing chamber 12, the mixing section 3 is taken as a secondary atomizing chamber 13, the diffusion section 4 is taken as a tertiary atomizing chamber 14, the natural gas containing hydrogen sulfide is firstly atomized in the primary atomizing chamber 12, the desulfurization liquid is dispersed into liquid drops through atomization, so that the contact area between the natural gas containing hydrogen sulfide and the desulfurization liquid is increased, the first-time efficient mixing mass transfer of the natural gas containing hydrogen sulfide and the desulfurization liquid is realized, more hydrogen sulfide reacts with the desulfurization liquid, then the mixture passes through the drainage section and enters the mixing section 3 for secondary atomization; when the natural gas after the first mixed mass transfer passes through the drainage section, the natural gas is mixed with the natural gas with higher pressure in the working section 5 and then enters the mixing section 3, the kinetic energy of the natural gas with higher pressure is large, the collision chance among molecules of the natural gas is higher, after the high-pressure natural gas is mixed with the natural gas after the first mixed mass transfer, the kinetic energy is increased, when the high-pressure natural gas is atomized with the desulfurization liquid for the second time, the mixed mass transfer efficiency is higher, the effect of removing hydrogen sulfide in the natural gas containing hydrogen sulfide is improved, and finally, the mixed medium formed after the third atomization is discharged from the mixed medium outlet 8 out of the reactor.
According to the working process, the natural gas containing hydrogen sulfide and the desulfurization liquid are subjected to three-stage atomization, high-pressure natural gas is used as power, no additional input power is needed, and the natural gas containing hydrogen sulfide and the desulfurization liquid are subjected to secondary and tertiary mixed mass transfer more efficiently.
As shown in the attached figure 1, in order to increase the mass transfer time of atomization mixing at each stage, a first desulfurization liquid inlet 9 is arranged on the side wall of an inlet section 1 close to a gas inlet 7 to be treated; the second desulfurization liquid inlet 10 is arranged on the side wall of the mixing section 3 close to the inlet of the mixing section 3; a third desulfurization solution inlet 11 is provided on the side wall of the diffuser 4 near the inlet of the diffuser 4.
As shown in fig. 1, in order to regulate the pressure of the natural gas entering the working section 5, a regulating device 15 capable of regulating the working fluid entering the working section 5 is provided on the working section 5.
The adjusting device 15 is a manual or electric adjusting valve, and the adjusting valve is fixedly installed at the upper port of the working section 5. The regulating valve can be a needle valve, and when the needle valve is adopted, the pressure of the natural gas entering the working section 5 is controlled by regulating the opening degree of the needle valve.
A level gauge mounting port 32 is provided on the tank reactor shell 18 as needed.
In conclusion, the device integrates the advantages of the kettle reactor, the injection reactor and the tower reactor, can be used as a stripping tower for removing hydrogen sulfide in crude oil, and can also be used as a high-efficiency reactor for realizing crude desulfurization and fine desulfurization of natural gas, coal gas and methane; when the hydrogen sulfide in gas phases such as natural gas and the like is removed, the mass transfer efficiency of the natural gas and the desulfurization liquid can be improved, the effect of removing the hydrogen sulfide is improved, particularly, when the high mass transfer injection reactor 16 is used, the mass transfer effect is obvious, the mass transfer effect of one high mass transfer injection reactor 16 is equal to that of four kettle-type reactors, and therefore, the device is smaller in size.
The above technical features constitute a preferred embodiment of the present invention, which has strong adaptability and better implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.

Claims (10)

1. A high-efficiency crude oil and natural gas hydrogen sulfide removal device is characterized by comprising a high mass transfer injection reactor, a tower reactor shell and a kettle reactor shell, wherein a bottom port of the tower reactor shell is fixedly communicated with a top port of the kettle reactor shell, at least one lower feed port is distributed on the side wall of the upper end of the kettle reactor shell at intervals along the circumference, each lower feed port is provided with a high mass transfer injection reactor, a mixed medium outlet of the high mass transfer injection reactor is communicated with the lower feed port, a discharge port is arranged on the side wall of the lower part of the kettle reactor shell, a mist catcher, a first distributor and a second distributor are arranged in the tower reactor shell at intervals from top to bottom, a filling cavity is formed in the reactor shell between the first distributor and the second distributor, a filler is filled in the filling cavity, an upper feed port is arranged on the side wall of the tower reactor shell between the mist catcher and the first distributor, a natural gas outlet is arranged on the tower reactor shell above the mist catcher; the wall surface of the shell of the kettle type reactor is provided with a heat exchange coil.
2. The high-efficiency crude oil and natural gas hydrogen sulfide removal device according to claim 1, wherein the high mass transfer injection reactor comprises a pipe body, the pipe body comprises an inlet section, an injection section, a mixing section, a diffusion section and a working section, the injection section is in an elbow shape, the left end of the inlet section is fixed and communicated with the right end of the injection section, the lower end of the injection section is fixed and communicated with the upper end of the mixing section, the lower end of the mixing section is fixed and communicated with the upper end of the diffusion section, the lower end outlet of the working section is fixed and communicated with the bending section of the injection section, the lower end outlet of the working section faces the mixing section, and the right end of the working section is provided with a working fluid inlet; the right port of the inlet section is a gas inlet to be treated, the lower port of the diffuser section is a mixed medium outlet, the side wall of the inlet section is provided with at least one first desulfurization liquid inlet vertical to the gas inlet to be treated, the side wall of the mixing section is provided with at least one second desulfurization liquid inlet vertical to the mixed medium outlet, and the side wall of the diffuser section is provided with at least one third desulfurization liquid inlet vertical to the mixed medium outlet.
3. The high efficiency hydrogen sulfide removal plant from crude oil and natural gas as claimed in claim 2, wherein the first desulfurization solution inlet is disposed on the side wall of the inlet section near the gas inlet to be treated; or/and the second desulfurization liquid inlet is arranged on the side wall of the mixing section close to the inlet of the mixing section; or/and the third desulfurization liquid inlet is arranged on the side wall of the diffusion section close to the inlet of the diffusion section; or/and the working section is provided with an adjusting device capable of adjusting the working fluid to enter the working section.
4. The high-efficiency crude oil and natural gas hydrogen sulfide removal device as claimed in claim 1, 2 or 3, wherein the lower feed port is fixedly communicated with a feed pipeline, the inlet end of the feed pipeline is communicated with the mixed medium outlet of the high mass transfer injection reactor, the feed pipeline between the high mass transfer injection reactor and the lower feed port is communicated with a dry gas inlet pipeline, and the dry gas inlet pipeline is connected in series with a valve; or/and an end enclosure is fixed at the upper end of the kettle type reactor shell, a bottom port of the tower type reactor shell is fixedly communicated with a top port of the end enclosure, and a lower feeding hole is formed in the side wall of the end enclosure; or/and a steam inlet is arranged on the side wall of the shell of the tower reactor between the upper feed inlet and the mist catcher; or/and a drain outlet is arranged at the bottom of the shell of the kettle type reactor.
5. A method for removing hydrogen sulfide of the high-efficiency crude oil natural gas hydrogen sulfide removal device according to any one of claims 1 to 4, which is characterized by comprising the following steps: when removing hydrogen sulfide in natural gas, a mixed medium formed by mixing and mass transferring the natural gas containing hydrogen sulfide with desulfurization liquid in a high mass transfer jet reactor enters a shell of a kettle type reactor through a lower feed inlet, the mixed medium is subjected to gas-liquid separation in the shell of the kettle type reactor, the natural gas containing part of atomized desulfurization liquid is used as a gas phase, the desulfurization liquid is used as a liquid phase, the desulfurization liquid is discharged from a discharge outlet and then enters the shell of a tower type reactor through a feed inlet, the downward desulfurization liquid is in reverse contact with the upward natural gas at a filler, the mass transfer and the reaction are carried out, the hydrogen sulfide in the natural gas is further removed, after the mass transfer reaction, the natural gas is discharged from a natural gas outlet, the desulfurization liquid is discharged from the discharge outlet, and the discharged desulfurization liquid can simultaneously enter the high mass transfer jet reactor for use.
6. The method for removing hydrogen sulfide according to claim 5, wherein the desulfurization solution is atomized in the high mass transfer spray reactor, the desulfurization solution part entering the shell of the tank reactor is still in a mist shape, and the mist desulfurization solution enters the shell of the tower reactor along with natural gas and is captured by the mist catcher; the foamed desulfurization solution completes defoaming when passing through the first distributor, the filler and the second distributor in the shell of the tower reactor.
7. The method for removing hydrogen sulfide according to claim 5 or 6, wherein the natural gas containing hydrogen sulfide is firstly subjected to mass transfer and reaction with the desulfurization solution in the high mass transfer jet reactor, and the hydrogen sulfide-containing natural gas is subjected to hydrogen sulfide removal in the high mass transfer jet reactor: the natural gas to be subjected to hydrogen sulfide removal enters from a gas inlet to be treated of an inlet section, simultaneously, the desulfurization liquid is fed into a first desulfurization liquid inlet, a second desulfurization liquid inlet and a third desulfurization liquid inlet, the high-pressure natural gas extracted underground is used as working fluid of a working section and enters the working section from the working fluid inlet, the inlet section is used as a primary atomizing chamber, the mixing section is used as a secondary atomizing chamber, the diffusion section is used as a tertiary atomizing chamber, the natural gas containing hydrogen sulfide is firstly atomized in the primary atomizing chamber and is dispersed into liquid drops through atomization, so that the contact area between the natural gas containing hydrogen sulfide and the desulfurization liquid is increased, the natural gas containing hydrogen sulfide and the desulfurization liquid are firstly and efficiently mixed for mass transfer, more hydrogen sulfide reacts with the desulfurization liquid, and then the natural gas containing hydrogen sulfide passes through a drainage section and enters the mixing section for secondary atomization; when the natural gas after the first mixed mass transfer passes through the drainage section, the natural gas is mixed with the high-pressure natural gas in the working section and then enters the mixing section, the kinetic energy of the high-pressure natural gas is large, the collision chance between molecules of the high-pressure natural gas is higher, and the high-pressure natural gas is mixed with the natural gas containing hydrogen sulfide after the first mixed mass transfer and then enters the kettle-type reactor shell from the mixed medium outlet through the feed opening with the mixed medium formed after the second atomization and the third atomization of the high-pressure natural gas and the desulfurization liquid.
8. The method for removing hydrogen sulfide as claimed in claim 5 or 6, wherein when removing hydrogen sulfide from crude oil, the high mass transfer spray reactor is closed, dry gas enters the tank reactor shell from a dry gas inlet pipeline, crude oil containing hydrogen sulfide enters the tower reactor shell through a feeding port, the crude oil containing hydrogen sulfide and the dry gas reversely contact at the first distributor, the filler and the second distributor to absorb hydrogen sulfide through mass transfer, the dry gas after absorbing hydrogen sulfide flows out from a natural gas outlet, and the crude oil after removing hydrogen sulfide is discharged through a discharging port.
9. The method for removing hydrogen sulfide according to claim 5, 6, 7 or 8, wherein when sulfur paste slurry is formed at the inner bottom of the shell of the tank reactor, the settled sulfur paste slurry is discharged through a drain outlet and filtered, most of the filtered filtrate is desulfurized liquid, and the filtered filtrate is pumped to the high mass transfer spray reactor and an upper feed inlet for recycling.
10. The method for removing hydrogen sulfide as claimed in claim 5, 6, 7, 8 or 9, characterized in that when removing hydrogen sulfide from crude oil, the high mass transfer injection reactor is closed, dry gas enters the tank reactor shell from a dry gas inlet pipeline, crude oil containing hydrogen sulfide enters the tower reactor shell through a feed port, crude oil containing hydrogen sulfide and dry gas reversely contact at the first distributor, the filler and the second distributor to absorb hydrogen sulfide through mass transfer, the dry gas after absorbing hydrogen sulfide flows out from a natural gas outlet, and the crude oil after removing hydrogen sulfide is discharged through a discharge port.
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