CN113698272B - Methanol production method and production equipment thereof - Google Patents
Methanol production method and production equipment thereof Download PDFInfo
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- CN113698272B CN113698272B CN202111259050.8A CN202111259050A CN113698272B CN 113698272 B CN113698272 B CN 113698272B CN 202111259050 A CN202111259050 A CN 202111259050A CN 113698272 B CN113698272 B CN 113698272B
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- C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
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Abstract
The invention belongs to the technical field of methanol production, and particularly relates to a methanol production method and production equipment thereof, wherein the methanol production method comprises the following steps: s1: preparing raw materials: firstly, mixing coke oven gas and coal-based synthesis gas to form mixed gas; s2: raw material purification: introducing the mixed gas into a filter, filtering out impurities such as oil stains, dust and the like carried by the mixed gas, and then compressing the mixed gas to pass through a first heat exchanger for heat exchange and temperature rise; the invention provides a methanol production method and production equipment thereof, aiming at solving the problems that inorganic sulfur and organic sulfur exist in mixed gas, the mixed gas is generally directly introduced into a fine desulfurization tower for desulfurization, but the organic sulfur is decomposed and desulfurized by utilizing the fine desulfurization tower, so that the desulfurization effect on the inorganic sulfur is poor, and the decomposition and removal of the organic sulfur are easily influenced by the existence of the inorganic sulfur.
Description
Technical Field
The invention belongs to the technical field of methanol production, and particularly relates to a methanol production method and production equipment thereof.
Background
Methanol is an organic compound, consists of methyl and hydroxyl, has the chemical property of alcohol, has wide application, is mainly used for manufacturing various organic products such as formaldehyde, acetic acid, methyl chloride, methylamine, dimethyl sulfate and the like, and can be mixed with gasoline to be used as a substitute fuel.
Some technical solutions related to methanol production technology also appear in the prior art, for example, a chinese patent with application number 2015103879937 discloses a method for producing methanol, coke oven gas and coal-based synthesis gas are mixed to form a mixed gas, a part of the mixed gas is compressed together with the rest of the mixed gas through methane reforming and then purified to remove impurities such as H2S, the removed hydrogen sulfide is desulfurized and recovered, the purified crude feed gas is subjected to methane separation to prepare a purified feed gas, the separated methane is prepared into a compressed natural gas or liquefied natural gas product, the purified feed gas is subjected to methanol synthesis to prepare methanol, the purge gas after methanol synthesis is separated through membrane separation, the separated CO and H2 are returned to purification, and the separated CO2 and liquid ammonia are subjected to urea synthesis to prepare urea. The invention has the advantages of diversification of products, adjustment of excess capacity, and promotion of energy conservation and emission reduction.
In the prior art, inorganic sulfur and organic sulfur exist in mixed gas, the mixed gas is generally directly introduced into a fine desulfurization tower for desulfurization, but the fine desulfurization tower is used for decomposing and desulfurizing the organic sulfur, so that the inorganic sulfur desulfurization effect is poor, and the decomposition and removal of the organic sulfur are easily influenced by the existence of the inorganic sulfur.
Disclosure of Invention
The invention provides a methanol production method and production equipment thereof, aiming at making up the defects of the prior art and solving the problems that inorganic sulfur and organic sulfur exist in mixed gas, the mixed gas is generally directly introduced into a fine desulfurization tower for desulfurization, but the fine desulfurization tower is used for decomposing and desulfurizing the organic sulfur, so that the inorganic sulfur desulfurization effect is poor, and the decomposition and removal of the organic sulfur are easily influenced due to the existence of the inorganic sulfur.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a methanol production method, which comprises the following steps: s1: preparing raw materials: firstly, mixing coke oven gas and coal-based synthesis gas to form mixed gas; s2: raw material purification: introducing the mixed gas into a filter, filtering out impurities such as oil stains, dust and the like carried by the mixed gas, and then compressing the mixed gas to pass through a first heat exchanger for heat exchange and temperature rise; s3: a desulfurization and decarburization process: the mixed gas passes through a first desulfurization box, inorganic sulfur in the mixed gas is removed through a desulfurizer in the first desulfurization box, the desulfurizer is driven by a motor to be in a flowing state, the time of the mixed gas in the desulfurizer is prolonged, the desulfurization efficiency of the inorganic sulfur is improved, and the mixed gas is adsorbed and secondarily purified through adsorption of an active carbon adsorption layer; then introducing the primarily desulfurized mixed gas into a second desulfurization box, and further removing sulfides by hydrolyzing and converting organic sulfur in the mixed gas; s4: a synthesis procedure: and (4) synthesizing the methanol from the desulfurized mixed gas in a methanol synthesizer by using a catalyst.
A methanol production facility adapted to the above methanol production method, wherein the top end of the first desulfurization tank described in S3 is an inverted cone in cross section; an air outlet hole is formed in the center of the top end of the first desulfurization box; the side wall of the first desulfurization box is provided with an air duct; a desulfurizer is placed in the first desulfurization box; an active carbon adsorption layer is fixedly connected to the inner wall of the first desulfurization box; the active carbon adsorption layer is positioned right above the desulfurizer; the bottom end of the active carbon adsorption layer is fixedly connected with a water absorption layer; a motor is fixedly connected to the center of the bottom end of the first desulfurization tank; the output end of the motor is provided with a first rotating shaft, and the first rotating shaft extends into the first desulfurization box and is fixedly connected with a cross plate; in the prior art, inorganic sulfur and organic sulfur exist in mixed gas, the mixed gas is generally directly introduced into a fine desulfurization tower for desulfurization, but the fine desulfurization tower is used for decomposing and desulfurizing the organic sulfur, the inorganic sulfur desulfurization effect is poor, and the decomposition and removal of the organic sulfur are easily influenced by the existence of the inorganic sulfur, therefore, when the mixed gas is introduced, the mixed gas is firstly introduced into liquid of a desulfurizing agent in a first desulfurization box through a gas guide pipe, the inorganic sulfur in the mixed gas is removed through the desulfurizing agent, in order to ensure the desulfurization efficiency, when the mixed gas is introduced, a motor is turned on, the motor drives a cross plate to rotate through a first rotating shaft, the liquid of the desulfurizing agent is driven to rotate in the first desulfurization box through the rotation of the cross plate, the contact time of the liquid and the mixed gas can be accelerated through the flow of the liquid, the desulfurization time is further improved, the desulfurization effect of the desulfurizing agent is ensured, and the gas passing through the desulfurizing agent can be dehydrated through a water absorption layer, then the dehydrated mixed gas enters an active carbon adsorption layer, and CO, HS, COS and the like in the mixed gas can be further adsorbed by the adsorption effect of the active carbon adsorption layer, so that H and CO in the mixed gas are discharged and collected from the air outlet, and the effects of desulfurization and decarburization are further realized.
Preferably, a coil pipe is fixedly connected to the inner wall of the bottom end of the first desulfurization tank; the spiral pipe is communicated with the guide pipe; a group of air outlet pipes are arranged at the top end of the spiral pipe; the during operation, be equipped with the coiled pipe in first desulfurization incasement, the coiled pipe sets up on first desulfurization incasement end inner wall, and coiled pipe and air duct intercommunication each other, the gas mixture that gets into from the air duct can let in the coiled pipe and then spout through the outlet duct, occupy whole first desulfurization incasement end because of the coiled pipe, distribution that can be even through the leading-in gas mixture of coiled pipe is in the desulfurizer liquid, can not concentrate a little emission, can effectively guarantee desulfurated homogeneity, avoid appearing the uneven condition of desulfurization.
Preferably, each support plate of the cross plate is rotatably connected with a pair of stirring rods; a first gear is fixedly connected to the position, close to the cross plate, of the stirring rod; a pair of the first gears are meshed with each other; the inner wall of the first desulfurization box is fixedly connected with an annular rack through a fixing column; the annular rack is meshed with a first gear positioned on the outer side of the cross plate; the during operation, when the motor rotates, drive the cross through first axis of rotation and rotate, the cross rotates and can drive the puddler and rotate around first axis of rotation, then the meshing through first gear and annular rack drives the puddler rotation, the puddler rotation can drive the peripheral liquid of drive and rotate around the puddler, and then produce the turbulent flow in the desulfurizer that flows, let the inside pressure transform of liquid constantly, and then can effectually reduce the gas of outlet duct combustion gas and become the papaw state, let gas can fully contact with the desulfurizer, guarantee desulfurization efficiency.
Preferably, the upper end and the lower end of the stirring rod are straight rods, and the middle of the stirring rod is a curved rod; the central line of the curved rod of the stirring rod and the straight rod of the stirring rod are superposed with each other; the during operation, the middle-end of the puddler of setting is bent shape pole, and rotation through bent shape pole can effectual increase desulfurizer fluidic turbulent state, and then lets fluidic pressure difference increase, and then lets the gas mixture under the papaw state carry out the breakage in liquid, effectively avoids the gas mixture under the papaw state not to break away from in the desulfurizer through the desulfurizer desulfurization, guarantees the desulfurization effect of desulfurizer to the gas mixture.
Preferably, a stirring plate is fixedly connected to the outer side wall of the protrusion of the curved rod in the middle of the stirring rod; the stirring rod is crescent, and the tip of the stirring rod faces downwards; the during operation, through the stirring board that sets up, the influence scope that can effectual increase stirring board, and set up the stirring board and be crescent, and most advanced down, crescent's stirring board can slightly gather the rivers of stirring board below, carries out local mapping and rotates, and then further increase the flow time of gas mixture in liquid, and what the stirring board is crescent most advanced, can stab the gas mixture of papaw state, further prevent that the gas mixture of not desulfurization breaks away from the desulfurizer.
Preferably, the top end of the stirring rod is provided with a first groove; a top rod is fixedly connected to the bottom of the first groove through a spring; the ejector rod is connected to the inner wall of the first groove in a sliding mode; the ejector rod is fixedly connected with a first arc-shaped block; a group of second arc-shaped blocks is fixedly connected to the upper bottom end of the activated carbon adsorption layer at positions corresponding to the first arc-shaped blocks; the during operation, when the puddler rotates around first axis of rotation, first arc piece and second arc piece contact each other, then after first arc piece and second arc piece separation, first arc piece can be at the spring force effect of ejector pin rebound this moment, and then bump with the active carbon adsorption layer, slight vibrations can let fillers such as the inside active carbon of active carbon adsorption layer take place slight adjustment, can avoid blockking up the flow of mist, also further improve the effect to the desulfurization decarbonization of mist, and first arc piece can extrude the layer that absorbs water when removing, and then let the intraformational moisture that absorbs water extrude, can keep the effect that absorbs water on layer.
Preferably, a group of spikes are arranged on the curved inner wall of the stirring plate; the sharp point of the spine faces downwards; during operation, be equipped with the spine on the crooked inner wall of stirring board, when the puddler rotated, the rivers that are located the stirring board can take place relative collision with the spine of stirring inboard side, and then carry out the breakage with the bubble form's in the rivers gas mixture, guarantee the crushing effect to the bubble form's in the desulfurizer gas mixture.
Preferably, a second groove is formed in the curved inner wall of the stirring plate; an elastic layer is fixedly connected to the inner wall of the opening of the second groove; a group of spheres are connected in the second groove in a sliding manner; the group of spheres are connected with each other through a first elastic rope; one end of the group of spheres is fixedly connected to the side wall of the second groove through a second elastic rope, and the other end of the group of spheres extends into the first groove and is fixedly connected to the bottom end of the ejector rod; the spine is fixedly connected to the elastic layer; the during operation, when first arc piece upward movement under the effect of ejector pin spring force, the ejector pin shifts up this moment and can drive a set of spheroid in the second recess through second elastic rope, the spheroid removes can will change the protruding position to the elastic membrane, and then can let the spine that lies in on the elastic membrane have an outside ejection power, then when first arc piece and second arc piece relative movement, a set of spheroid can return the original position under the effect of second elastic rope on second recess lateral wall this moment, a set of spheroidal round trip movement, can let the spine have a reciprocal ejection power of circulation, and then the crushing effect of increase spine.
Preferably, a rubber layer is fixedly connected to the top end of the first arc-shaped block; the during operation, in order to prevent to take place great collision noise between first arc piece and the active carbon adsorption layer, the rigid coupling has the one deck rubber layer on first arc piece, through the rubber layer buffering, can effectual noise reduction's production, and can not cause the damage to the active carbon adsorption layer.
The invention has the following beneficial effects:
1. according to the methanol production method and the production equipment thereof, the motor is started, the motor drives the cross plate to rotate through the first rotating shaft, the liquid of the desulfurizer is driven to rotate in the first desulfurization box through the rotation of the cross plate, the flowing of the liquid can accelerate the contact time of the liquid and the mixed gas, so that the desulfurization time is improved, the desulfurization effect of the desulfurizer is ensured, the gas passing through the desulfurizer is dehydrated through the water absorption layer, then the dehydrated mixed gas enters the activated carbon adsorption layer, the CO, HS, COS and the like in the mixed gas can be further adsorbed through the adsorption effect of the activated carbon adsorption layer, the H and CO in the mixed gas are discharged and collected from the gas outlet, and the desulfurization and decarburization effects are further realized.
2. According to the methanol production method and the production equipment thereof, the coiled pipe occupies the bottom end of the whole first desulfurization box, and the mixed gas introduced through the coiled pipe can be uniformly distributed in the desulfurizer liquid, so that the mixed gas is not intensively discharged, the uniformity of desulfurization can be effectively ensured, and the condition of uneven desulfurization is avoided.
3. According to the methanol production method and the production equipment thereof, the curved rod is arranged at the middle end of the stirring rod, the turbulent flow state of the desulfurizer fluid can be effectively increased through the rotation of the curved rod, the pressure difference value of the fluid is increased, and the mixed gas in the bubble state can be broken in the liquid, so that the mixed gas in the bubble state is effectively prevented from being separated from the desulfurizer without desulfurization through the desulfurizer, and the desulfurization effect of the desulfurizer on the mixed gas is ensured.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow diagram of a methanol production process of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a perspective view of the convolute tube;
FIG. 5 is an enlarged view of a portion of FIG. 3 at A;
FIG. 6 is a partial enlarged view of FIG. 5 at B;
FIG. 7 is an enlarged view of a portion of FIG. 5 at C;
FIG. 8 is a cross-sectional view of a first arcuate block;
in the figure: 1. a first desulfurization tank; 11. an air duct; 12. an air outlet; 13. an activated carbon adsorption layer; 14. a water-absorbing layer; 15. an electric motor; 16. a first rotating shaft; 17. a cross plate; 2. a coiled pipe; 21. an air outlet pipe; 22. a stirring rod; 23. a first gear; 24. an annular rack; 25. a stirring plate; 26. a first groove; 27. a top rod; 28. a first arc-shaped block; 29. a second arc-shaped block; 3. a second groove; 31. an elastic layer; 32. a sphere; 33. a first elastic cord; 34. a second elastic cord; 35. a rubber layer; 36. and (6) pricking.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The first embodiment is as follows:
as shown in fig. 1 to 7, the steps of the methanol production method according to the present invention are as follows: s1: preparing raw materials: firstly, mixing coke oven gas and coal-based synthesis gas to form mixed gas; s2: raw material purification: introducing the mixed gas into a filter, filtering out impurities such as oil stains, dust and the like carried by the mixed gas, and then compressing the mixed gas to pass through a first heat exchanger for heat exchange and temperature rise; s3: a desulfurization and decarburization process: the mixed gas passes through the first desulfurization box 1, inorganic sulfur in the mixed gas is removed through a desulfurizer in the first desulfurization box 1, the motor 15 drives the cross plate 17 to enable the desulfurizer to be in a flowing state, the time of the mixed gas in the desulfurizer is prolonged, the desulfurization efficiency of the inorganic sulfur is improved, and the mixed gas is adsorbed and secondarily purified through the adsorption of the active carbon adsorption layer 13; then introducing the primarily desulfurized mixed gas into a second desulfurization box, and further removing sulfides by hydrolyzing and converting organic sulfur in the mixed gas; s4: a synthesis procedure: and (4) synthesizing the methanol from the desulfurized mixed gas in a methanol synthesizer by using a catalyst.
A methanol production facility, which is suitable for the methanol production method, wherein the top end of the first desulfurization tank 1 in S3 is in an inverted cone shape in cross section; an air outlet hole 12 is formed in the center of the top end of the first desulfurization box 1; the side wall of the first desulfurization box 1 is provided with an air duct 11; a desulfurizer is placed in the first desulfurization box 1; an active carbon adsorption layer 13 is fixedly connected to the inner wall of the first desulfurization box 1; the active carbon adsorption layer 13 is positioned right above the desulfurizer; the bottom end of the activated carbon adsorption layer 13 is fixedly connected with a water absorption layer 14; a motor 15 is fixedly connected to the center of the bottom end of the first desulfurization box 1; the output end of the motor 15 is provided with a first rotating shaft 16, and the first rotating shaft 16 extends into the first desulfurization box 1 and is fixedly connected with a cross plate 17; in the prior art, inorganic sulfur and organic sulfur exist in mixed gas, the mixed gas is generally directly introduced into a fine desulfurization tower for desulfurization, but the fine desulfurization tower is used for decomposing and desulfurizing the organic sulfur, so that the inorganic sulfur desulfurization effect is poor, and the decomposition and removal of the organic sulfur are easily influenced by the existence of the inorganic sulfur, therefore, when the desulfurization device works, the mixed gas is firstly introduced into the liquid of the desulfurizing agent in the first desulfurization box 1 through the gas guide pipe 11, the inorganic sulfur in the mixed gas is removed through the desulfurizing agent, in order to ensure the desulfurization efficiency, when the mixed gas is introduced, the motor 15 is turned on, the motor 15 drives the cross plate 17 to rotate through the first rotating shaft 16, the liquid of the desulfurizing agent is driven to rotate in the first desulfurization box 1 through the rotation of the cross plate 17, the contact time of the liquid and the mixed gas can be accelerated through the flow of the liquid, the desulfurization time is further improved, and the desulfurization effect of the desulfurizing agent is ensured, gas passing through the desulfurizer is dehydrated through the water absorption layer 14, then dehydrated mixed gas enters the activated carbon adsorption layer 13, CO2, H2S, COS and the like in the mixed gas can be further adsorbed through the adsorption effect of the activated carbon adsorption layer 13, H2 and CO in the mixed gas are discharged from the gas outlet 12 and collected, and the effects of desulfurization and decarburization are further achieved.
The inner wall of the bottom end of the first desulfurization box 1 is fixedly connected with a coil pipe 2; the spiral pipe 2 is communicated with the guide pipe; a group of air outlet pipes 21 are arranged at the top end of the spiral pipe 2; the during operation, be equipped with the coil 2 in first desulfurization case 1, coil 2 sets up on 1 bottom inner wall of first desulfurization case, and coil 2 and 11 mutual intercommunications of air duct, the gas mixture that gets into from the air duct 11 can let in coil 2 and then spout through outlet duct 21, because of coil 2 occupies whole 1 bottom of first desulfurization case, distribution that can be even through 2 leading-in gas mixtures of coil can be in the desulfurizer liquid, can not concentrate a bit and discharge, can effectively guarantee desulfurated homogeneity, avoid appearing the uneven condition of desulfurization.
Each support plate of the cross plate 17 is rotatably connected with a pair of stirring rods 22; a first gear 23 is fixedly connected to the position, close to the cross plate 17, on the stirring rod 22; a pair of the first gears 23 are engaged with each other; the inner wall of the first desulfurization box 1 is fixedly connected with an annular rack 24 through a fixing column; the annular rack 24 is meshed with the first gear 23 positioned outside the cross plate 17; the during operation, when motor 15 rotates, it rotates to drive cross 17 through first axis of rotation 16, cross 17 rotates and can drive puddler 22 and rotate around first axis of rotation 16, then the meshing through first gear 23 and annular rack 24 drives puddler 22 rotation, puddler 22 rotation can drive the peripheral liquid of drive and rotate around puddler 22, and then produce the turbulent flow in the desulfurizer that flows, let the inside pressure transform of liquid constantly, and then can effectual reduction outlet duct 21 combustion gas become the papaw state, let gas fully contact with the desulfurizer, guarantee desulfurization efficiency.
The upper end and the lower end of the stirring rod 22 are straight rods, and the middle part of the stirring rod is a curved rod; the central line of the curved rod of the stirring rod 22 and the straight rod of the stirring rod 22 are overlapped; the during operation, the middle-end of puddler 22 that sets up is curved shape pole, and rotation through curved shape pole can effectual increase desulfurizer fluidic turbulent state, and then lets fluidic pressure difference increase, and then lets the gas mixture under the papaw state carry out the breakage in liquid, effectively avoids the gas mixture under the papaw state not to break away from in the desulfurizer through the desulfurizer desulfurization, guarantees the desulfurization effect of desulfurizer to the gas mixture.
A stirring plate 25 is fixedly connected to the convex outer side wall of the curved rod in the middle of the stirring rod 22; the stirring rod 22 is crescent-shaped, and the tip of the stirring rod 22 faces downwards; the during operation, through the stirring board 25 that sets up, influence scope that can effectual increase stirring board 25, and set up stirring board 25 and be crescent, and most advanced down, crescent's stirring board 25 can slightly gather the rivers of stirring board 25 below, carry out local mapping and rotate, and then further increase the flow time of gas mixture in liquid, and stirring board 25 is crescent most advanced, can stab the gas mixture of papaw state, further prevent that the gas mixture of non-desulfurization from breaking away from the desulfurizer.
A first groove 26 is formed at the top end of the stirring rod 22; a top rod 27 is fixedly connected to the bottom of the first groove 26 through a spring; the top rod 27 is connected to the inner wall of the first groove 26 in a sliding manner; a first arc-shaped block 28 is fixedly connected to the top rod 27; a group of second arc-shaped blocks 29 are fixedly connected to the upper bottom end of the activated carbon adsorption layer 13 at positions corresponding to the first arc-shaped blocks 28; during operation, when puddler 22 rotated around first axis of rotation 16, first arc piece 28 and second arc piece 29 contacted each other, then after first arc piece 28 and second arc piece 29 separation, first arc piece 28 can be at the spring force effect of ejector pin 27 rebound this moment, and then bump with active carbon adsorption layer 13, slight vibrations can let fillers such as the inside active carbon of active carbon adsorption layer 13 take place slight adjustment, can avoid blockking up the flow of mist, also further improve the effect to the desulfurization decarbonization of mist, and first arc piece 28 can extrude layer 14 that absorbs water when removing, and then let the moisture in layer 14 that absorbs water extrude, can keep the effect of absorbing water of layer 14.
A group of spikes 36 are arranged on the curved inner wall of the stirring plate 25; the sharp spine 36 points downwards; during operation, the bent inner wall of the stirring plate 25 is provided with the sharp spines 36, when the stirring rod 22 rotates, water flow positioned on the stirring plate 25 collides with the sharp spines 36 on the inner side of the stirring plate 25 relatively, and then bubble-shaped mixed gas in the water flow is crushed, so that the crushing effect of the bubble-shaped mixed gas in the desulfurizer is ensured.
A second groove 3 is formed in the bent inner wall of the stirring plate 25; an elastic layer 31 is fixedly connected to the inner wall of the opening of the second groove 3; a group of balls 32 are slidably connected in the second groove 3; a group of the balls 32 are connected with each other through a first elastic rope 33; one end of a group of the spheres 32 is fixedly connected to the side wall of the second groove 3 through a second elastic rope 34, and the other end of the group of spheres extends into the first groove 26 and is fixedly connected to the bottom end of the mandril 27; the spikes 36 are fixedly connected to the elastic layer 31; during operation, when first arc piece 28 upward movement under the effect of ejector pin 27 spring force, this moment ejector pin 27 moves upward and can drive a set of spheroid 32 through second elastic rope 34 and remove in second recess 3, spheroid 32 removes and can change the protruding position to the elastic membrane, and then can let the spine 36 that lies in on the elastic membrane have an outside ejection power, then when first arc piece 28 and second arc piece 29 relative movement, a set of spheroid 32 can return the original position under the effect of second elastic rope 34 on second recess 3 lateral wall this moment, the round trip movement of a set of spheroid 32, can let spine 36 have a reciprocating ejection power, and then increase spine 36's crushing effect.
Example two:
as shown in fig. 8, in a first comparative example, as another embodiment of the present invention, a rubber layer 35 is fixedly connected to the top end of the first arc-shaped block 28; in operation, in order to prevent the occurrence of large collision noise between the first arc-shaped block 28 and the activated carbon adsorption layer 13, the fixed connection has one rubber layer 35 on the first arc-shaped block 28, and the rubber layer 35 buffers, so that the noise can be effectively reduced, and the activated carbon adsorption layer 13 cannot be damaged.
The working principle is as follows: the mixed gas entering from the gas guide tube 11 is introduced into the coiled tube 2 and then is sprayed out through the gas outlet tube 21, because the coiled tube 2 occupies the bottom end of the whole first desulfurization box 1, the mixed gas led in through the coiled tube 2 can be uniformly distributed in the desulfurizer liquid, the mixed gas is led into the desulfurizer liquid in the first desulfurization box 1, inorganic sulfur in the mixed gas is removed through the desulfurizer, in order to ensure the efficiency of sulfur removal, when the mixed gas is led in, the motor 15 is turned on, the motor 15 drives the cross plate 17 to rotate through the first rotating shaft 16, the cross plate 17 rotates to drive the liquid of the desulfurizer to rotate in the first desulfurization box 1, when the motor 15 rotates, the cross plate 17 is driven to rotate through the first rotating shaft 16, the cross plate 17 rotates to drive the stirring rod 22 to rotate around the first rotating shaft 16, and then the stirring rod 22 is driven to rotate through the meshing of the first gear 23 and the annular rack 24, the rotation of the stirring rod 22 drives the liquid around the stirring rod 22 to rotate, thereby generating turbulence in the flowing desulfurizer, so that the internal pressure of the liquid is constantly changed, thereby effectively reducing the gas discharged from the gas outlet pipe 21 into bubble state, the middle end of the stirring rod 22 is a curved rod, the turbulence state of the desulfurizer fluid can be effectively increased by the rotation of the curved rod, thereby increasing the pressure difference of the fluid, further the gas mixture in the bubble state can be broken in the liquid, the influence range of the stirring plate 25 can be effectively increased by the arranged stirring plate 25, the stirring plate 25 is arranged to be crescent, and the tip of the stirring plate is downward, the crescent stirring plate 25 can slightly gather the water flow below the stirring plate 25, perform local mapping rotation, and further increase the flow time of the gas mixture in the liquid, the stirring plate 25 is provided with a crescent tip, so that the mixed gas in a bubble state can be punctured, and the mixed gas which is not desulfurized is further prevented from being separated from the desulfurizer; when the stirring rod 22 rotates around the first rotating shaft 16, the first arc-shaped block 28 and the second arc-shaped block 29 are in contact with each other, then after the first arc-shaped block 28 and the second arc-shaped block 29 are separated, the first arc-shaped block 28 can move upwards under the action of the spring force of the ejector rod 27, and further collide with the activated carbon adsorption layer 13, slight vibration can enable fillers such as activated carbon and the like in the activated carbon adsorption layer 13 to be slightly adjusted, the flowing of mixed gas can be prevented from being blocked, the effects of desulfuration and decarburization on the mixed gas can be further improved, meanwhile, when the first arc-shaped block 28 moves upwards under the action of the spring force of the ejector rod 27, at the moment, the ejector rod 27 moves upwards to drive a group of balls 32 to move in the second groove 3 through the second elastic rope 34, the convex position of the elastic membrane can be changed by the movement of the balls 32, and further, the spines 36 on the elastic membrane can have outward ejecting force, then when the first arc-shaped block 28 and the second arc-shaped block 29 move relatively, at this time, the group of spheres 32 returns to the original position under the action of the second elastic rope 34 on the side wall of the second groove 3, and the group of spheres 32 moves back and forth, so that the spine 36 has a cyclic reciprocating ejection force, and the crushing effect of the spine 36 is further improved.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A method for producing methanol is characterized by comprising the following steps:
s1: preparing raw materials: firstly, mixing coke oven gas and coal-based synthesis gas to form mixed gas;
s2: raw material purification: introducing the mixed gas into a filter, filtering out impurities such as oil stains, dust and the like carried by the mixed gas, and then compressing the mixed gas to pass through a first heat exchanger for heat exchange and temperature rise;
s3: a desulfurization and decarburization process: the inorganic sulfur in the mixed gas is removed through the desulfurizer in the first desulfurization box (1) after the mixed gas passes through the first desulfurization box (1), the motor (15) drives the cross plate (17) to enable the desulfurizer to be in a flowing state, the time of the mixed gas in the desulfurizer is prolonged, the desulfurization efficiency of the inorganic sulfur is improved, and the mixed gas is adsorbed and secondarily purified through the adsorption of the active carbon adsorption layer (13); then introducing the primarily desulfurized mixed gas into a second desulfurization box, and further removing sulfides by hydrolyzing and converting organic sulfur in the mixed gas;
s4: a synthesis procedure: synthesizing methanol from the desulfurized mixed gas in a methanol synthesizer by a catalyst;
the top end of the first desulfurization box (1) is in an inverted cone shape in cross section; an air outlet (12) is formed in the center of the top end of the first desulfurization box (1); the side wall of the first desulfurization box (1) is provided with an air duct (11); a desulfurizer is placed in the first desulfurization box (1); an active carbon adsorption layer (13) is fixedly connected to the inner wall of the first desulfurization box (1); the active carbon adsorption layer (13) is positioned right above the desulfurizer; the bottom end of the active carbon adsorption layer (13) is fixedly connected with a water absorption layer (14); a motor (15) is fixedly connected to the center of the bottom end of the first desulfurization box (1); the output end of the motor (15) is provided with a first rotating shaft (16), and the first rotating shaft (16) extends into the first desulfurization box (1) and is fixedly connected with a cross plate (17);
a coil pipe (2) is fixedly connected to the inner wall of the bottom end of the first desulfurization box (1); the spiral pipe (2) is communicated with the guide pipe; a group of air outlet pipes (21) are arranged at the top end of the spiral pipe (2);
each support plate of the cross plate (17) is rotatably connected with a pair of stirring rods (22); a first gear (23) is fixedly connected to the position, close to the cross plate (17), of the stirring rod (22); a pair of said first gears (23) are mutually meshed; the inner wall of the first desulfurization box (1) is fixedly connected with an annular rack (24) through a fixing column; the annular rack (24) is meshed with a first gear (23) positioned outside the cross plate (17);
the upper end and the lower end of the stirring rod (22) are straight rods, and the middle part of the stirring rod is a curved rod; the central line of the curved rod of the stirring rod (22) and the straight rod of the stirring rod (22) are superposed with each other;
a stirring plate (25) is fixedly connected to the convex outer side wall of the curved rod in the middle of the stirring rod (22); the stirring rod (22) is crescent, and the tip of the stirring rod (22) faces downwards;
a first groove (26) is formed in the top end of the stirring rod (22); a top rod (27) is fixedly connected to the bottom of the first groove (26) through a spring; the ejector rod (27) is connected to the inner wall of the first groove (26) in a sliding manner; a first arc-shaped block (28) is fixedly connected to the ejector rod (27); and a group of second arc-shaped blocks (29) are fixedly connected to the upper bottom end of the activated carbon adsorption layer (13) relative to the positions of the first arc-shaped blocks (28).
2. A methanol production apparatus, characterized in that it is adapted to a methanol production process as claimed in claim 1, wherein the top end of the first desulfurization tank (1) described in S3 is of an inverted conical shape in cross section; an air outlet (12) is formed in the center of the top end of the first desulfurization box (1); the side wall of the first desulfurization box (1) is provided with an air duct (11); a desulfurizer is placed in the first desulfurization box (1); an active carbon adsorption layer (13) is fixedly connected to the inner wall of the first desulfurization box (1); the active carbon adsorption layer (13) is positioned right above the desulfurizer; the bottom end of the active carbon adsorption layer (13) is fixedly connected with a water absorption layer (14); a motor (15) is fixedly connected to the center of the bottom end of the first desulfurization box (1); the output end of the motor (15) is provided with a first rotating shaft (16), and the first rotating shaft (16) extends into the first desulfurization box (1) and is fixedly connected with a cross plate (17);
a coil pipe (2) is fixedly connected to the inner wall of the bottom end of the first desulfurization box (1); the spiral pipe (2) is communicated with the guide pipe; a group of air outlet pipes (21) are arranged at the top end of the spiral pipe (2);
each support plate of the cross plate (17) is rotatably connected with a pair of stirring rods (22); a first gear (23) is fixedly connected to the position, close to the cross plate (17), of the stirring rod (22); a pair of said first gears (23) are mutually meshed; the inner wall of the first desulfurization box (1) is fixedly connected with an annular rack (24) through a fixing column; the annular rack (24) is meshed with a first gear (23) positioned outside the cross plate (17);
the upper end and the lower end of the stirring rod (22) are straight rods, and the middle part of the stirring rod is a curved rod; the central line of the curved rod of the stirring rod (22) and the straight rod of the stirring rod (22) are superposed with each other;
a stirring plate (25) is fixedly connected to the convex outer side wall of the curved rod in the middle of the stirring rod (22); the stirring rod (22) is crescent, and the tip of the stirring rod (22) faces downwards;
a first groove (26) is formed in the top end of the stirring rod (22); a top rod (27) is fixedly connected to the bottom of the first groove (26) through a spring; the ejector rod (27) is connected to the inner wall of the first groove (26) in a sliding manner; a first arc-shaped block (28) is fixedly connected to the ejector rod (27); and a group of second arc-shaped blocks (29) are fixedly connected to the upper bottom end of the activated carbon adsorption layer (13) relative to the positions of the first arc-shaped blocks (28).
3. A methanol production plant as claimed in claim 2, characterized in that the curved inner wall of the stirring plate (25) is provided with a set of spikes (36); the sharp point (36) points downwards.
4. A methanol production apparatus as claimed in claim 3, wherein the curved inner wall of the stirring plate (25) is provided with a second groove (3); an elastic layer (31) is fixedly connected to the inner wall of the opening of the second groove (3); a group of spheres (32) are connected in the second groove (3) in a sliding manner; the balls (32) are connected with each other through a first elastic rope (33); one end of the group of spheres (32) is fixedly connected to the side wall of the second groove (3) through a second elastic rope (34), and the other end of the group of spheres extends into the first groove (26) and is fixedly connected to the bottom end of the ejector rod (27); the spikes (36) are fixedly connected on the elastic layer (31).
5. The methanol production device as claimed in claim 4, wherein a rubber layer (35) is fixed on the top end of the first arc-shaped block (28).
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| CN105367383A (en) * | 2014-08-25 | 2016-03-02 | 蒋小华 | Methyl-alcohol production technology |
| CN105498720A (en) * | 2014-10-14 | 2016-04-20 | 中国石油化工股份有限公司 | Solid adsorbent for removing H2S, CO2, and organic sulfur from mixed gas |
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Address after: Group 9, Gangcheng village, Changsha Town, Rudong County, Nantong City, Jiangsu Province, 226400 Patentee after: Nantong Borun New Energy Technology Co.,Ltd. Address before: 226000 group 9, Gangcheng village, Changsha Town, Rudong County, Nantong City, Jiangsu Province Patentee before: BORUN BIOTECHNOLOGY NANTONG CO.,LTD. |