CN110903866A - Super fine desulfurizing tower for high-efficient removing organic sulfur - Google Patents
Super fine desulfurizing tower for high-efficient removing organic sulfur Download PDFInfo
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- CN110903866A CN110903866A CN201911344950.5A CN201911344950A CN110903866A CN 110903866 A CN110903866 A CN 110903866A CN 201911344950 A CN201911344950 A CN 201911344950A CN 110903866 A CN110903866 A CN 110903866A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/34—Purifying combustible gases containing carbon monoxide by catalytic conversion of impurities to more readily removable materials
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/101—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids with water only
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Abstract
The super-fine desulfurization tower for efficiently removing the organic sulfur comprises a fixed seat, a tower body, a first flue gas purification device, a flow dividing device, a catalytic device, a flow guide device, a second flue gas purification device, a spraying device and a drainage device, wherein the first flue gas purification device, the flow dividing device, the catalytic device, the flow guide device, the second flue gas purification device, the spraying device and the drainage device are arranged to realize efficient removal of the organic sulfur in the coke oven gas and avoid temperature runaway, the content of the organic sulfur in the coke oven gas is controlled to be below 0.01ppm, meanwhile, inorganic sulfur and particles are not contained in the coke oven gas, the quality of the coke oven gas is greatly improved, the organic sulfur is prevented from being combined with a catalyst in a methanation reaction process, catalyst poisoning is avoided, the service life of the catalyst in the methanation process is greatly prolonged, byproducts in the methanation process of the coke oven gas are reduced, the total, the competitiveness of natural gas products is obviously improved.
Description
Technical Field
The invention relates to the technical field of desulfurization equipment, in particular to a super-fine desulfurization tower for efficiently removing organic sulfur.
Background
After the coke oven gas is pretreated, the coke oven gas still contains organic sulfur mainly containing carbon sulfide and thiophene, and the organic sulfur has toxicity to a catalyst (zinc oxide) in the natural gas prepared by the subsequent methanation of the coke oven gas, at present, the organic sulfur in the coke oven gas is usually removed by adopting a secondary hydrogenation and fine desulfurization process, because the capability of removing the organic sulfur by the zinc oxide is weaker than that of hydrogen sulfide, the sulfur content of the organic sulfur in the coke oven gas is difficult to be effectively reduced, trace amounts of organic sulfur such as carbon sulfide and thiophene still remain in the coke oven gas, the total content of the organic sulfur is always more than 0.1ppm, the catalyst poisoning is easily caused, the service life of the catalyst is greatly reduced, and the production cost of the natural gas.
Disclosure of Invention
In view of the above, it is necessary to provide a super-fine desulfurization tower for efficiently removing organic sulfur.
An ultra-precise desulfurizing tower for efficiently removing organic sulfur comprises a fixed seat, a tower body, a first flue gas purifying device, a flow dividing device, a catalyzing device, a flow guiding device, a second flue gas purifying device, a spraying device and a water discharging device, wherein the fixed seat is arranged on a horizontal plane, the tower body is arranged above the fixed seat, the first flue gas purifying device, the flow dividing device, the catalyzing device, the flow guiding device and the second flue gas purifying device are sequentially arranged inside the tower body from bottom to top, the spraying device is arranged on one side of the first flue gas purifying device, the spraying device is also arranged on one side of the second flue gas purifying device, the water discharging device is arranged on one side of the tower body, the first flue gas purifying device comprises a first Venturi blade, a second Venturi blade, a first fixed ring, a flow guiding groove and a first water discharging pipe, one end of the first Venturi blade is arranged on one, the other end of the first Venturi blade is arranged on one side of the diversion trench, the second Venturi blade and the first Venturi blade are inclined and arranged oppositely in the tower body, the first fixing ring is arranged on the inner wall of the tower body, the diversion trench is arranged above the first drainage pipe, one end of the first drainage pipe is communicated with the diversion trench, the other end of the first drainage pipe is arranged outside the tower body, the diversion device is a conical diversion plate, the catalysis device comprises a first partition plate net, a second partition plate net, a third partition plate net, a fourth partition plate net, a fifth partition plate net, a sixth partition plate net, a first flue gas diversion plate and a second flue gas diversion plate, the first partition plate net is arranged on one side of the tower body close to the conical diversion plate, the second partition plate net and the first partition plate net are arranged oppositely in the tower body, the third partition plate net and the second partition plate net are arranged adjacently in the tower body, the fourth partition net and the third partition net are oppositely arranged in the tower body, the fifth partition net and the fourth partition net are adjacently arranged in the tower body, the sixth partition net and the fifth partition net are oppositely arranged in the tower body, the first flue gas guide plate is arranged between the second partition net and the third partition net, the second flue gas guide plate is arranged between the fourth partition net and the fifth partition net, the guide device is a flue gas guide unit, the second flue gas purification device is an ultra-fine demisting unit, the spray device comprises a first spray unit, a second spray unit and a third spray unit, the first spray unit is arranged below a first Venturi blade and a second Venturi blade in the tower body, the second spray unit is arranged above the first Venturi blade and the second Venturi blade in the tower body, and the third spray unit is arranged below the ultra-fine demisting unit, the drainage device comprises a second drainage pipe, a third drainage pipe and a drainage pump, one end of the second drainage pipe is arranged on one side of the smoke diversion unit, the other end of the second drainage pipe is connected with the drainage pump, one end of the third drainage pipe is arranged on one side of the bottom of the tower body, and the other end of the third drainage pipe is connected with the drainage pump.
Preferably, a plurality of flow distribution holes are formed in the conical flow distribution plate, and the flow distribution holes are one or a combination of circular holes, elliptical holes and square holes.
Preferably, first flue gas guide plate, second flue gas guide plate are the same in structure, first flue gas guide plate includes water conservancy diversion base plate, horizontal strengthening rib, vertical strengthening rib, the water conservancy diversion base plate is inside hollow circular rigid plate body, horizontal strengthening rib sets up in water conservancy diversion base plate both sides, vertical strengthening rib sets up in water conservancy diversion base plate both sides, horizontal strengthening rib sets up and forms a plurality of air guide districts with vertical strengthening rib is perpendicular crisscross, a plurality of first air guide holes have been seted up to air guide district both sides.
Preferably, the flue gas diversion unit comprises a first rectification table, a second rectification table and a diversion cylinder, the first rectification table is arranged above the sixth partition net, the second rectification table is arranged below the third spraying unit, the diversion cylinder is arranged between the first rectification table and the second rectification table, and a plurality of second air guide holes are formed in the wall of the diversion cylinder.
Preferably, the first spraying unit comprises a first water pipe and a first micro sprayer, the first water pipe is arranged below the first Venturi blade and the second Venturi blade and is in contact with the first water discharge pipe, the first water pipe is provided with a plurality of first micro sprayers, the output end of the first micro sprayer is arranged opposite to the first Venturi blade and the second Venturi blade, the second spraying unit comprises a second water pipe and a second micro sprayer, the second water pipe is arranged above the first Venturi blade and the second Venturi blade, the second water pipe is provided with a plurality of second micro sprayers, the output end of the second micro sprayer is arranged opposite to the first Venturi blade and the second Venturi blade, the third spraying unit comprises a third water pipe and a third micro sprayer, the third water pipe is arranged above the second rectifying table, and a plurality of third micro sprayers are arranged on the third water conveying pipe, and the output ends of the third micro sprayers are arranged opposite to the first rectifying table.
Preferably, hyperfine defogging unit includes the solid fixed ring of second, bracing piece, hyperfine defogging layer blade, the solid fixed ring of second sets up on the tower body inner wall, the solid fixed ring of second is close to one side of tower body central line and has seted up a plurality of draw-in grooves corresponding with hyperfine defogging layer blade cross-section, a plurality of draw-in grooves corresponding with hyperfine defogging layer blade cross-section are seted up to the bracing piece tip, the bracing piece sets up in third raceway top, hyperfine defogging layer blade one end sets up in the draw-in groove of the solid fixed ring one side of second, the hyperfine defogging layer blade other end sets up in the draw-in groove of bracing piece tip, hyperfine defogging layer blade forms.
Preferably, hyperfine defogging layer blade cross-section is the many curved structures of taking the backward flow hook, hyperfine defogging layer blade bend top still is provided with a plurality of first backward flow hooks.
Preferably, one side of the bottom of the tower body is also provided with a liquid level meter.
The technical scheme is provided with a first flue gas purification device, a flow dividing device, a catalytic device, a flow guiding device and a second flue gas purification device, residual particles in the coke oven gas are removed through the first flue gas purification device and the flow dividing device, the catalytic device is provided with a first catalytic space, a second catalytic space, a third catalytic space, a first flue gas guide plate and a second flue gas guide plate between the catalytic spaces, organic sulfur such as carbon sulfide and thiophene in the coke oven gas is preliminarily removed through the first catalytic space, organic sulfur such as carbon sulfide and thiophene in the coke oven gas is further removed through the second catalytic space, the size of a catalyst in the third catalytic space is smaller than that of a catalyst in the second catalytic space, organic sulfur such as carbon sulfide and thiophene in the coke oven gas is further removed through the third catalytic space, the temperatures of the coke oven gas in the catalytic spaces are consistent through the first flue gas guide plate and the second flue gas guide plate, so that organic sulfur such as carbon sulfide, thiophene and the like is stably and continuously converted into inorganic sulfur in a forward direction, reversible reaction is avoided when the temperature of the coke oven gas is locally reduced, the level of removing the organic sulfur such as carbon sulfide, thiophene and the like is obviously improved, and the organic sulfur in the coke oven gas is controlled to be below 0.01 ppm; removing inorganic sulfur in the coke oven gas after passing through the catalytic device by a flow guide device, and enabling the coke oven gas to uniformly escape from the center of the tower body to the interior of the tower body; and further removing ultrafine particles and water mist contained in the coke oven gas through a second flue gas purification device. Through the arrangement, the efficient removal of organic sulfur in the coke oven gas is realized, the content of organic sulfur in the coke oven gas is controlled to be below 0.01ppm, inorganic sulfur and particles are not contained in the coke oven gas, the quality of the coke oven gas is greatly improved, the organic sulfur is prevented from being combined with a catalyst in a methanation reaction process, and the catalyst poisoning is avoided, so that the service life of the catalyst in the methanation process is greatly prolonged, byproducts in the methanation process of the coke oven gas are reduced, the methanation total yield is favorably improved, the natural gas yield is improved by more than 5%, the use amount of the methanation catalyst is reduced, the production and operation cost of a company is greatly reduced, and the competitiveness of natural gas products is remarkably improved.
Drawings
Fig. 1 is a schematic structural view of a super-fine desulfurization tower for efficiently removing organic sulfur.
Fig. 2 is a partially enlarged schematic view of fig. 1.
FIG. 3 is a schematic cross-sectional view of a first venturi blade.
Fig. 4 is a schematic structural view of a conical splitter plate.
Fig. 5 is a schematic structural diagram of a hyperfine demisting layer blade.
Fig. 6 is a schematic cross-sectional view of fig. 5.
Fig. 7 is a schematic structural view of a first flue gas deflector.
Fig. 8 is a schematic structural view of the shunt cylinder.
In the figure: the fixed seat 10, the tower body 20, the air inlet 21, the air outlet 22, the liquid level meter 221, the first venturi blade 31, the second backflow hook 311, the second venturi blade 32, the first fixed ring 33, the diversion trench 34, the first drainage pipe 35, the conical diversion plate 41, the diversion hole 411, the first partition net 51, the second partition net 52, the third partition net 53, the fourth partition net 54, the fifth partition net 55, the sixth partition net 56, the first flue gas diversion plate 57, the diversion substrate 571, the transverse reinforcement rib 572, the vertical reinforcement rib 573, the first air guide hole 574, the second flue gas diversion plate 58, the flue gas diversion unit 61, the first rectification stage 611, the second rectification stage 612, the diversion cylinder 613, the second air guide hole 6131, the ultrafine demisting unit 71, the second fixed ring 711, the support rod 712, the ultrafine demisting layer blade 713, the first backflow hook 7131, the first spraying unit 81, the first water delivery pipe 811, the first micro sprayer 812, the first micro sprayer, The second spraying unit 82, the second water pipe 821, the second micro sprayer 822, the third spraying unit 83, the third water pipe 831, the third micro sprayer 832, the second water drain pipe 91, the third water drain pipe 92 and the water drain pump 93.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 to 8, the present invention provides an ultra-precise desulfurization tower capable of efficiently removing organic sulfur, which comprises a fixing seat 10, a tower body 20, a first flue gas purification device, a flow dividing device, a catalytic device, a flow guiding device, a second flue gas purification device, a spraying device and a drainage device, wherein the fixing seat 10 is arranged on a horizontal plane, the fixing seat 10 is a corrosion-resistant round table base or a square base, the tower body 20 is arranged above the fixing seat 10, one end of the tower body 20 is a corrosion-resistant rigid hollow cylinder, the other end of the tower body 20 is a corrosion-resistant rigid hollow round table, an air inlet 21 is arranged on one side of the tower body 20 close to a first spraying unit 81 so as to convey coke oven gas after the fine desulfurization into the tower body 20, an air outlet 22 is arranged on the top of the tower body 20 so as to convey the coke oven gas after the ultra-precise, The flow dividing device, the catalytic device, the flow guide device and the second flue gas purification device are sequentially arranged inside the tower body 20 from bottom to top, the spraying device is arranged on one side of the first flue gas purification device, the spraying device is also arranged on one side of the second flue gas purification device, and the water drainage device is arranged on one side of the tower body 20;
the first flue gas purification device comprises a first venturi blade 31, a second venturi blade 32, a first fixing ring 33, a diversion trench 34 and a first drainage pipe 35, wherein one end of the first venturi blade 31 is arranged in a V-shaped clamping groove on one side of the inner surface of the first fixing ring 33, the other end of the first venturi blade 31 is arranged in the V-shaped clamping groove on one side of the diversion trench 34, the second venturi blade 32 and the first venturi blade 31 are inclined and oppositely arranged in the tower body 20, the first venturi blade 31, the second venturi blade 32, the inner surface of the first fixing ring 33 and two sides of the diversion trench 34 are in sealing fit, so that coke oven gas only passes through the first venturi blade 31 and the second venturi blade 32, an included angle between the first venturi blade 31 and the second venturi blade 32 is 135-165 degrees, and the water mist sprayed by the second spraying unit 82 is promoted to pass through the first venturi blade 31, the second venturi blade 32, and the first venturi blade 31, and the second venturi blade 32, Second venturi blade 32's washing efficiency to make rivers, the tiny dusty dropping liquid flow into to U type guiding gutter 34 along first venturi blade 31, second venturi blade 32 inclined plane gradually under the action of gravity, ensure that coke oven gas is even, the gap of passing through first venturi blade 31, second venturi blade 32 fast, first solid fixed ring 33 sets up on tower body 20 inner wall, first solid fixed ring 33 is the corrosion-resistant ring of rigidity to set up a plurality of V-arrangement draw-in grooves corresponding with the venturi blade on its inner surface, guiding gutter 34 sets up above first drain pipe 35, guiding gutter 34 both ends and the sealed cooperation of first solid fixed ring 33 inner surface to collect the rivers that each blade flows into to guiding gutter 34 and the tiny dusty dropping liquid that drip, form dusty sewage in guiding gutter 34, guiding gutter 34 is the U-arrangement guiding gutter, sets up a plurality of V-arrangement draw-in grooves corresponding with the venturi blade on its both sides, the bottom of the tower body is provided with a plurality of flow guide through holes or strip-shaped gaps, an arc-shaped gap corresponding to the flow guide groove 34 is formed above one end of the first water discharge pipe 35, the arc-shaped gap at one end of the first water discharge pipe 35 is communicated with the flow guide through holes or strip-shaped gaps of the flow guide groove 34 so as to convey the dust-containing sewage in the flow guide groove 34 to the first water discharge pipe 35 and support the weight of the flow guide groove 34, the other end of the first water discharge pipe 35 is arranged outside the tower body 20, the first water discharge pipe 35 is a rigid corrosion-resistant pipe body so as to discharge the dust-containing sewage in the U-shaped flow guide groove 34 to the outside of the tower body 20, and the dust-containing sewage;
the flow dividing device is an anti-corrosion conical flow dividing plate 41, and the conical flow dividing plate 41 is matched with the inner wall of the tower body 20 so as to divide the coke oven gas passing through the first flue gas purification device;
the catalytic device comprises a first partition board net 51, a second partition board net 52, a third partition board net 53, a fourth partition board net 54, a fifth partition board net 55, a sixth partition board net 56, a first flue gas guide plate 57 and a second flue gas guide plate 58, the partition board nets have the same structure and are corrosion-resistant steel wire nets, a layer of alumina ceramic balls is flatly laid above the first partition board net 51, the third partition board net 53 and the fifth partition board net 55 so as to increase the air permeability of coke oven gas passing through a first catalytic space, a second catalytic space and a third catalytic space, the first partition board net 51 is arranged at one side close to a conical flow distribution plate 41 in the tower body 20, the second partition board net 52 and the first partition board net 51 are oppositely arranged in the tower body 20 to form the first catalytic space for arranging a catalyst, the third partition board net 53 and the second partition board net 52 are adjacently arranged in the tower body 20, the fourth partition board net 54 and the third partition board net 53 are oppositely arranged in the tower body 20, a second catalytic space for arranging a catalyst is formed, the fifth partition net 55 and the fourth partition net 54 are adjacently arranged in the tower body 20, the sixth partition net 56 and the fifth partition net 55 are oppositely arranged in the tower body 20 to form a third catalytic space for arranging the catalyst, the first flue gas guide plate 57 is arranged between the second partition net 52 and the third partition net 53 so that the coke oven gas passing through the first catalytic space can be more uniformly dissipated to the second catalytic space, and the second flue gas guide plate 58 is arranged between the fourth partition net 54 and the fifth partition net 55 so that the coke oven gas passing through the second catalytic space can be more uniformly dissipated to the third catalytic space;
the flow guiding device is a flue gas flow guiding unit 61, so as to remove residual inorganic sulfur in the coke oven gas after passing through the third catalytic space, and guide the flow of the inorganic sulfur, so as to ensure that the coke oven gas uniformly escapes from the center of the tower body 20 to the interior of the tower body 20;
the second flue gas purification device is an ultra-fine demisting unit 71 for further removing residual ultra-fine particulate matters and water mist in the coke oven gas;
the spraying device comprises a first spraying unit 81, a second spraying unit 82 and a third spraying unit 83, wherein the first spraying unit 81 is arranged below a first Venturi blade 31 and a second Venturi blade 32 in a tower body 20 to wash the lower parts of the first Venturi blade 31 and the second Venturi blade 32 to prevent fine dust-containing drops from blocking the blades, the second spraying unit 82 is arranged above the first Venturi blade 31 and the second Venturi blade 32 in the tower body 20 to wash the upper parts of the first Venturi blade 31 and the second Venturi blade 32 to prevent fine dust-containing drops from blocking the blades, and the third spraying unit 83 is arranged below a superfine demisting unit 71 to further wash coke oven gas passing through a third catalytic space to fully atomize the coke oven gas;
the drainage device comprises a second drainage pipe 91, a third drainage pipe 92 and a drainage pump 93, one end of the second drainage pipe 91 is arranged on one side of the smoke diversion unit 61, the other end of the second drainage pipe 91 is connected with the drainage pump 93 so as to discharge the dust-containing sewage on one side of the smoke diversion unit 61, namely one side of the first rectification platform 611, to the outside of the tower body 20, one end of the third drainage pipe 92 is arranged on one side of the bottom of the tower body 20, and the other end of the third drainage pipe 92 is connected with the drainage pump 93 so as to discharge the dust-containing sewage accumulated at the bottom of the tower body 20 to the outside of the.
Specifically, the outer surfaces of the upper ends of the first venturi blade 31 and the second venturi blade 32 are provided with a second backflow hook 311, and a groove with a downward opening is formed between the second backflow hook 311 and the outer surfaces of the first venturi blade 31 and the second venturi blade 32, so that the coke oven gas forms a local vortex when passing through the second backflow hook 311, and then particles in the coke oven gas are more fully collided with liquid drops, and the purification effect is better.
Specifically, the conical splitter plate 41 is arranged opposite to the first venturi blade 31 and the second venturi blade 32, so that the space of the coke oven gas passing through the first venturi blade 31 and the second venturi blade 32 is reduced, the flow rate of the coke oven gas is increased, the coke oven gas passes through the splitter holes 411 on the conical splitter plate 41 at a higher speed, the passing rate of the coke oven gas is increased, meanwhile, a low-pressure area is formed between the conical splitter plate 41 and the first venturi blade 31 and the second venturi blade 32, the coke oven gas continuously collides with one side of the conical splitter plate 41 close to the first venturi blade 31 and the second venturi blade 32 when passing through the splitter holes 411, droplets in the coke oven gas continuously collide to form larger droplets, small particles collide with each other to form larger particles, the particles are dust-containing droplets, and the dust-containing droplets fall into the first venturi blade 31 and the second venturi blade 32 under the action of self gravity and low-pressure adsorption, Inside second venturi blade 32, the dusty dropping liquid gathers gradually in U type guiding gutter 34, forms dusty sewage, and the rethread first drain pipe 35 is discharged dusty sewage to the outside of tower body 20. Through the arrangement, residual particles in the coke oven gas are efficiently removed.
The scheme is provided with a first catalytic space, a second catalytic space, a third catalytic space, a first flue gas guide plate 57 and a second flue gas guide plate 58 which are arranged between the catalytic spaces, wherein a plurality of honeycomb-shaped catalysts are arranged in the first catalytic space, a plurality of vertical through holes formed in the honeycomb-shaped catalysts are communicated with the meshes of a first partition board net 51, coke oven gas is converted from disordered conveying to ordered conveying, so that the coke oven gas without particles quickly passes through the second partition board net 52 from the first partition board net 51 along the vertical through holes, the coke oven gas inlet speed in the first catalytic space is increased, organic sulfur such as carbon sulfide and thiophene in the coke oven gas is preliminarily removed, the coke oven gas passes through the second partition board net 52, and the coke oven gas is converted from ordered conveying to disordered conveying; the coke oven gas from which organic sulfur such as carbon sulfide and thiophene is primarily removed passes through the first flue gas guide plate 57, so that the coke oven gas is conveyed to the second catalytic space more uniformly, quickly and stably at a temperature; a plurality of granular/spherical catalysts are arranged in the second catalytic space, the catalysts are arranged in disorder, and disordered coke oven gas conveyed to the second catalytic space is in full contact with the granular/spherical catalysts so as to further remove organic sulfur such as carbon sulfide, thiophene and the like in the coke oven gas; the coke oven gas from which organic sulfur such as carbon sulfide and thiophene is further removed passes through the second flue gas guide plate 58, so that the coke oven gas is conveyed to the third catalytic space more uniformly, quickly and stably at a temperature; a plurality of granular/spherical catalysts are arranged in the third catalytic space, the catalysts are arranged in a disordered manner, disordered coke oven gas conveyed to the third catalytic space is fully contacted with the granular/spherical catalysts, the size of the catalyst in the third catalytic space is smaller than that of the catalyst in the second catalytic space, so that the specific surface area of the catalyst in the third catalytic space is increased, the catalytic performance of the third catalytic space is further improved, and organic sulfur such as carbon sulfide, thiophene and the like in the coke oven gas is further removed; by arranging the first catalytic space, the second catalytic space and the third catalytic space, the high-efficiency removal of organic sulfur such as carbon sulfide, thiophene and the like in the coke oven gas is realized, and the organic sulfur in the coke oven gas is controlled to be below 0.01 ppm.
Specifically, the catalyst is CNJ-5 or Pd/Ru.
Further, a plurality of flow distribution holes 411 are formed in the conical flow distribution plate 41, the flow distribution holes 411 are one or a combination of circular holes, elliptical holes and square holes, the flow distribution holes 411 are sequentially arranged along the plane of the conical flow distribution plate 41 towards the arc surface direction, and the aperture of the flow distribution holes 411 is gradually reduced so as to increase the passing rate of coke oven gas, so that the coke oven gas passing through the first venturi blade 31 and the second venturi blade 32 is rapidly conveyed to the lower part of the first catalytic space.
Referring to fig. 7, further, the first flue gas guide plate 57 and the second flue gas guide plate 58 have the same structure, the first flue gas guide plate 57 comprises a guide base plate 571, a transverse reinforcing rib 572 and a vertical reinforcing rib 573, the guide substrate 571 is fixedly disposed on the inner wall of the tower body 20, the guide substrate 571 is matched with the tower body 20, the guide substrate 571 is a circular rigid plate with a hollow interior, and is corrosion-resistant and heat-conductive, the transverse reinforcing ribs 572 are disposed on two sides of the guide substrate 571, the vertical reinforcing ribs 573 are disposed on two sides of the guide substrate 571, so as to improve the strength of the two sides of the guide substrate 571, the transverse reinforcing ribs 572 and the vertical reinforcing ribs 573 are vertically staggered to form a plurality of air guide areas, the transverse reinforcing ribs 572 and the vertical reinforcing ribs 573 have strong corrosion resistance and good thermal conductivity, a plurality of first air guide holes 574 with the aperture of 5-20mm are arranged on two sides of the air guide area.
Specifically, the coke oven gas enters the cavity inside the flow guide substrate 571 from one side of the second partition plate mesh 52 or the fourth partition plate mesh 54, a plurality of local vortexes are formed around each first gas guide hole 574 on the side surface, a low-pressure area is formed inside the flow guide substrate 571, the coke oven gas rapidly flows out from the inside of the flow guide substrate 571 to one side of the third partition plate mesh 53 or the fifth partition plate mesh 55, a plurality of local vortexes are also formed around each first gas guide hole 574 on the side surface, through the arrangement, the coke oven gas conveyed from the first flue gas guide plate 57 to the second catalytic space is more uniform and rapid, and meanwhile, the coke oven gas conveyed from the second flue gas guide plate 58 to the third catalytic space is more uniform and rapid.
Specifically, more coke oven gas passes through the guide base plate 571 quickly in unit time, the coke oven gas continuously exchanges heat with the guide base plate 571, the transverse reinforcing ribs 572 and the vertical reinforcing ribs 573 to promote the temperature of the first flue gas guide plate 57 and the second flue gas guide plate 58 to be locally raised, so that the temperatures of the coke oven gas on two sides of the first flue gas guide plate 57 and the second flue gas guide plate 58 are consistent, the stability of the temperature of the coke oven gas passing through the catalytic device is improved, the temperature runaway is avoided, the local failure of the catalyst is effectively prevented, the stable and continuous forward conversion of organic sulfur such as carbon sulfide and thiophene contained in the coke oven gas when the coke oven gas passes through the catalyst is facilitated, the reversible reaction is avoided when the temperature of the coke oven gas is locally reduced, and the carbon sulfide, the thiophene and the like in the coke oven gas are fully converted into the inorganic sulfur in the first catalytic space, the second catalytic space, so as to reduce organic sulfur in the coke oven gas to the minimum level. And conveying the coke oven gas passing through the first catalytic space, the second catalytic space and the third catalytic space to a first rectifying platform 611, further removing inorganic sulfur remaining in the coke oven gas, allowing the coke oven gas after inorganic sulfur removal to enter the tower body 20 through a shunt tube 613, removing ultrafine small particles and water mist in the coke oven gas through ultrafine demisting layer blades 713, and conveying the coke oven gas from a gas outlet 22 at the top of the tower body 20 to or an external buffer tank for methanation. Through experimental detection, the content of organic sulfur in the coke oven gas at the inlet end of the methanation process is less than 0.01 ppm.
Referring to fig. 1, 2, and 8, the flue gas guiding unit 61 further includes a first rectifying table 611, a second rectifying table 612, and a flow dividing cylinder 613, the first rectifying table 611 is disposed above the sixth partition net 56, the first rectifying table 611 is a rigid corrosion-resistant hollow frustum, a plurality of through holes are disposed at two ends of the first rectifying table 611, so that the coke oven gas after passing through the catalytic device passes through the first rectifying table 611 in the direction of the flow dividing cylinder 613 and the second rectifying table 612, the second rectifying table 612 is disposed below the third spraying unit 83, the second rectifying table 612 is a rigid corrosion-resistant solid frustum, the flow dividing cylinder 613 is disposed between the first rectifying table 611 and the second rectifying table 612, the flow dividing cylinder 613 is a rigid corrosion-resistant cylinder, and a plurality of second gas guiding holes 6131 are disposed on the wall of the flow dividing cylinder 613.
Specifically, the first rectification stage 611 is filled with medium-temperature zinc oxide spherulites to react with inorganic sulfur remaining in the coke oven gas after passing through the catalytic device, so as to convert the inorganic sulfur into ZnS, thereby ensuring that the coke oven gas does not contain the inorganic sulfur, and the coke oven gas without the inorganic sulfur escapes from the shunt tube 613 to the inside of the tower body 20, and at this time, the coke oven gas still contains ultrafine small particles and water mist.
Referring to fig. 1, further, the first spraying unit 81 includes a first water pipe 811 and a first micro sprayer 812, the first water pipe 811 is disposed below the first venturi blade 31 and the second venturi blade 32, the first water pipe 811 is a rigid corrosion-resistant pipe and is in contact with or fixed to the first drain pipe 35 to support the first drain pipe 35 and prevent the first drain pipe 35 from deforming under force, the first water pipe 811 is provided with a plurality of first micro sprayers 812, an output end of the first micro sprayer 812 is disposed opposite to the first venturi blade 31 and the second venturi blade 32 to spray water mist to the first venturi blade 31 and the second venturi blade 32 to atomize the coke oven gas sufficiently and to flush the lower portions of the first venturi blade 31 and the second venturi blade 32 sufficiently to remove fine dust drops in the first venturi blade 31 and the second venturi blade 32, so as to prevent the gap below the first venturi blade 31 and the second venturi blade 32 from being blocked, fine dust-containing drops gradually gather at the bottom of the tower body 20 and form dust-containing sewage after mixing with the accumulated water in the bottom of the tower body 20, the second spraying unit 82 comprises a second water pipe 821 and a second micro sprayer 822, the second water pipe 821 is arranged above the first venturi blade 31 and the second venturi blade 32, the second water pipe 821 is a rigid corrosion-resistant pipe body, a plurality of second micro sprayers 822 are arranged on the second water pipe 821, the output end of the second micro sprayer 822 is arranged relative to the first venturi blade 31 and the second venturi blade 32 so as to spray water mist to the first venturi blade 31 and the second venturi blade 32, so as to atomize coke oven gas and fully wash the upper parts of the first venturi blade 31 and the second venturi blade 32, in order to get rid of the fine dusty dropping liquid among first venturi blade 31, the second venturi blade 32 to prevent the gap jam of first venturi blade 31, the second venturi blade 32 top, fine dusty dropping liquid gathers gradually in U type guiding gutter 34, forms dusty sewage, the third sprays unit 83 and includes third raceway 831, third miniature atomizer 832, third raceway 831 sets up in second rectifying table 612 top, third raceway 831 is the corrosion-resistant body of rigidity, be provided with a plurality of third miniature atomizer 832 on the third raceway 831, third miniature atomizer output sets up with first rectifying table 611 relatively, in order to fully spray water smoke to the coke oven gas of the inside escape of splitter 613 to tower body 20, so that coke oven gas fully atomizes.
Specifically, after the dust-containing sewage is discharged to the outside of the tower body 20, the dust-containing sewage can be recycled or used in other processes after particulate matters, ultrafine particulate matters, sulfides and other impurities contained in the dust-containing sewage are removed by a purifying instrument.
Referring to fig. 1 and 5, the ultrafine demisting unit 71 includes a second fixing ring 711, a supporting rod 712, and ultrafine demisting layer blades 713, the second fixing ring 711 is disposed on an inner wall of the tower body 20, the second fixing ring 711 is a rigid corrosion-resistant ring, one side of the second fixing ring 711 near a center line of the tower body 20 is provided with a plurality of slots corresponding to cross sections of the ultrafine demisting layer blades 713 for disposing the ultrafine demisting layer blades 713, an end of the supporting rod 712 is provided with a plurality of slots corresponding to cross sections of the ultrafine demisting layer blades 713 for disposing the ultrafine demisting layer blades 713, the supporting rod 712 is fixedly disposed above the third water pipe 831 to ensure that the frustum-shaped ultrafine demisting layer blades 713 disposed between the second fixing ring 711 and the supporting rod 712 are firm and stable, one end of the ultrafine demisting layer blades 713 is disposed in the slot on one side of the second fixing ring 711, the other end of the ultra-fine demisting layer blade 713 is arranged in a clamping groove at the end part of the supporting rod 712, and the ultra-fine demisting layer blade 713 forms a frustum shape.
Specifically, after the coke oven gas is fully sprayed with water mist by the third micro sprayer 832, the coke oven gas is fully atomized, the coke oven gas still contains superfine small particles which rise along with the coke oven gas, under the action of inertial centrifugal force, the ultrafine particles continuously adhere to and collide with the surfaces of the frustum-shaped ultrafine demisting layer blades 713, the superfine small particle drops are formed after being combined with the water mist, and when the superfine small particle drops continuously collide and gather to a certain degree, the ultra-fine demisting layer blades 713 are separated under the action of the self gravity, so that residual ultra-fine particulate matters and water mist in the coke oven gas are thoroughly removed, the organic sulfur content in the coke oven gas at the methanation inlet end is ensured to be less than 0.01ppm, meanwhile, the coke oven gas does not contain particles and ultrafine particles, so that the quality of the coke oven gas is obviously improved, and the service life of the catalyst in the methanation process is greatly prolonged.
Referring to fig. 6, further, the section of the ultra-fine demisting layer blade 713 is of a multi-bend structure with backflow hooks, the top end of the bend of the ultra-fine demisting layer blade 713 is further provided with a plurality of first backflow hooks 7131, a groove with a downward opening is formed between the first backflow hooks 7131 and the surface of the ultra-fine demisting layer blade 713, so that coke oven gas is promoted to generate local eddy current when passing through the first backflow hooks 7131, centrifugal acceleration is increased, and then the contact between the ultra-fine particles in the coke oven gas and water mist is more sufficient, so that the removal effect of the ultra-fine demisting layer blade 713 on the ultra-fine particles is further improved.
Further, a liquid level meter 221 is further disposed on one side of the bottom of the tower body 20 to display the amount of the dust-containing sewage in the bottom of the tower body 20 in real time, so that the dust-containing sewage is timely discharged to the outside of the tower body 20 through the third drain pipe 92.
The modules or units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a super smart desulfurizing tower of high-efficient desorption organic sulphur which characterized in that: comprises a fixed seat, a tower body, a first flue gas purification device, a flow dividing device, a catalytic device, a flow guiding device, a second flue gas purification device, a spraying device and a drainage device, wherein the fixed seat is arranged on a horizontal plane, the tower body is arranged above the fixed seat, the first flue gas purification device, the flow dividing device, the catalytic device, the flow guiding device and the second flue gas purification device are sequentially arranged inside the tower body from bottom to top, the spraying device is arranged on one side of the first flue gas purification device, the spraying device is also arranged on one side of the second flue gas purification device, the drainage device is arranged on one side of the tower body, the first flue gas purification device comprises a first Venturi blade, a second Venturi blade, a first fixing ring, a flow guiding groove and a first drainage pipe, one end of the first Venturi blade is arranged on one side of the first fixing ring, and the other end of the first Venturi, the second Venturi blade and the first Venturi blade are inclined and oppositely arranged in the tower body, the first fixing ring is arranged on the inner wall of the tower body, the diversion trench is arranged above the first drainage pipe, one end of the first drainage pipe is communicated with the diversion trench, the other end of the first drainage pipe is arranged outside the tower body, the diversion device is a conical diversion plate, the catalysis device comprises a first partition plate net, a second partition plate net, a third partition plate net, a fourth partition plate net, a fifth partition plate net, a sixth partition plate net, a first flue gas diversion plate and a second flue gas diversion plate, the first partition plate net is arranged on one side, close to the conical diversion plate, in the tower body, the second partition plate net and the first partition plate net are oppositely arranged in the tower body, the third partition plate net and the second partition plate net are adjacently arranged in the tower body, the fourth partition plate net and the third partition plate net are oppositely arranged in the tower body, the fifth partition net and the fourth partition net are adjacently arranged in the tower body, the sixth partition net and the fifth partition net are oppositely arranged in the tower body, the first smoke guide plate is arranged between the second partition net and the third partition net, the second smoke guide plate is arranged between the fourth partition net and the fifth partition net, the flow guide device is a smoke flow guide unit, the second smoke purification device is a superfine demisting unit, the spraying device comprises a first spraying unit, a second spraying unit and a third spraying unit, the first spraying unit is arranged below a first Venturi blade and a second Venturi blade in the tower body, the second spraying unit is arranged above the first Venturi blade and the second Venturi blade in the tower body, the third spraying unit is arranged below the superfine demisting unit, and the water drainage device comprises a second water drainage pipe, Third drain pipe, drain pump, second drain pipe one end sets up in flue gas water conservancy diversion unit one side, the second drain pipe other end is connected with the drain pump, third drain pipe one end sets up in tower body bottom one side, the third drain pipe other end is connected with the drain pump.
2. The super-fine desulfurization tower for efficiently removing organic sulfur according to claim 1, characterized in that: the conical splitter plate is provided with a plurality of splitter holes, and the splitter holes are one or a combination of circular holes, elliptical holes and square holes.
3. The super-fine desulfurization tower for efficiently removing organic sulfur according to claim 1, characterized in that: first flue gas guide plate, second flue gas guide plate are the same in structure, first flue gas guide plate includes water conservancy diversion base plate, horizontal strengthening rib, vertical strengthening rib, the water conservancy diversion base plate is inside hollow circular rigid plate body, horizontal strengthening rib sets up in water conservancy diversion base plate both sides, vertical strengthening rib sets up in water conservancy diversion base plate both sides, horizontal strengthening rib sets up and forms a plurality of air guide districts with vertical strengthening rib is perpendicular crisscross, a plurality of first air guide holes have been seted up to air guide district both sides.
4. The super-fine desulfurization tower for efficiently removing organic sulfur according to claim 1, characterized in that: the flue gas diversion unit comprises a first rectification table, a second rectification table and a diversion cylinder, the first rectification table is arranged above the sixth partition net, the second rectification table is arranged below the third spraying unit, the diversion cylinder is arranged between the first rectification table and the second rectification table, and a plurality of second air guide holes are formed in the wall of the diversion cylinder.
5. The super-fine desulfurization tower for efficiently removing organic sulfur according to claim 1, characterized in that: the first spray unit comprises a first water pipe and a first micro sprayer, the first water pipe is arranged below the first Venturi blade and the second Venturi blade and is in contact with the first water drain pipe, a plurality of first micro sprayers are arranged on the first water pipe, the output end of each first micro sprayer is arranged opposite to the first Venturi blade and the second Venturi blade, the second spray unit comprises a second water pipe and a second micro sprayer, the second water pipe is arranged above the first Venturi blade and the second Venturi blade, a plurality of second micro sprayers are arranged on the second water pipe, the output end of each second micro sprayer is arranged opposite to the first Venturi blade and the second Venturi blade, the third spray unit comprises a third water pipe and a third micro sprayer, and the third water pipe is arranged above the second rectification table, and a plurality of third micro sprayers are arranged on the third water conveying pipe, and the output ends of the third micro sprayers are arranged opposite to the first rectifying table.
6. The super-fine desulfurization tower for efficiently removing organic sulfur according to claim 1, characterized in that: the hyperfine defogging unit includes that the second is fixed ring, bracing piece, hyperfine defogging layer blade, the second is fixed ring and is set up on the tower body inner wall, the solid fixed ring of second is close to one side of tower body central line and has seted up a plurality ofly and the corresponding draw-in groove in hyperfine defogging layer blade cross-section, a plurality ofly and the corresponding draw-in groove in hyperfine defogging layer blade cross-section are seted up to the bracing piece tip, the bracing piece sets up in third raceway top, hyperfine defogging layer blade one end sets up in the draw-in groove of the solid fixed ring one side of second, the hyperfine defogging layer blade other end sets up in the draw-in groove of bracing piece.
7. The super-fine desulfurization tower for efficiently removing organic sulfur according to claim 6, wherein: the hyperfine defogging layer blade cross-section is the many curved structures of taking the backward flow hook, hyperfine defogging layer blade bend top still is provided with a plurality of first backward flow hooks.
8. The super-fine desulfurization tower for efficiently removing organic sulfur according to claim 1, characterized in that: and a liquid level meter is further arranged on one side of the bottom of the tower body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911344950.5A CN110903866A (en) | 2019-12-25 | 2019-12-25 | Super fine desulfurizing tower for high-efficient removing organic sulfur |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911344950.5A CN110903866A (en) | 2019-12-25 | 2019-12-25 | Super fine desulfurizing tower for high-efficient removing organic sulfur |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048345A (en) * | 2020-09-28 | 2020-12-08 | 姚英 | Organic sulfur conversion reactor for blast furnace gas |
| CN117039072A (en) * | 2023-08-31 | 2023-11-10 | 广东佛燃科技有限公司 | Desulfurizing device for solid oxide fuel cell system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310911A (en) * | 2016-08-22 | 2017-01-11 | 山东国舜建设集团有限公司 | Combined type deep purification device for desulfurized wet flue gas |
| CN106701202A (en) * | 2017-01-05 | 2017-05-24 | 东华工程科技股份有限公司 | Apparatus and method used for mixing reaction of synthetic gas and coal and gas-solid-liquid grading separation of product |
| CN208449058U (en) * | 2018-06-20 | 2019-02-01 | 临沂恒昌焦化股份有限公司 | The desulfurizer of medium temperature Zinc oxide desulfurizer is utilized in methanol production line |
| CN211814298U (en) * | 2019-12-25 | 2020-10-30 | 平罗县阳光焦化有限公司 | Super fine desulfurizing tower for high-efficient removing organic sulfur |
-
2019
- 2019-12-25 CN CN201911344950.5A patent/CN110903866A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310911A (en) * | 2016-08-22 | 2017-01-11 | 山东国舜建设集团有限公司 | Combined type deep purification device for desulfurized wet flue gas |
| CN106701202A (en) * | 2017-01-05 | 2017-05-24 | 东华工程科技股份有限公司 | Apparatus and method used for mixing reaction of synthetic gas and coal and gas-solid-liquid grading separation of product |
| CN208449058U (en) * | 2018-06-20 | 2019-02-01 | 临沂恒昌焦化股份有限公司 | The desulfurizer of medium temperature Zinc oxide desulfurizer is utilized in methanol production line |
| CN211814298U (en) * | 2019-12-25 | 2020-10-30 | 平罗县阳光焦化有限公司 | Super fine desulfurizing tower for high-efficient removing organic sulfur |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048345A (en) * | 2020-09-28 | 2020-12-08 | 姚英 | Organic sulfur conversion reactor for blast furnace gas |
| CN117039072A (en) * | 2023-08-31 | 2023-11-10 | 广东佛燃科技有限公司 | Desulfurizing device for solid oxide fuel cell system |
| CN117039072B (en) * | 2023-08-31 | 2024-03-26 | 广东佛燃科技有限公司 | Desulfurizing device for solid oxide fuel cell system |
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