CN103232866B - A fiber ball filler and a gas purification method using the same - Google Patents
A fiber ball filler and a gas purification method using the same Download PDFInfo
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- CN103232866B CN103232866B CN201310122867.XA CN201310122867A CN103232866B CN 103232866 B CN103232866 B CN 103232866B CN 201310122867 A CN201310122867 A CN 201310122867A CN 103232866 B CN103232866 B CN 103232866B
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Abstract
A fiber ball filler and a gas purification method using the same, wherein the fiber ball filler is composed of a ball shell and fiber ball. The method comprises: cooling high temperature raw gas through a waste heat boiler and a cooler, then feeding in from the bottom of an absorption tower to fully contact with three layers of fiber ball fillers of different specifications for purification of the raw gas by absorption, and then feeding into a gas holder from the top of the absorption tower; and after the fiber ball fillers are saturated from absorption, spraying absolute ethanol for desorption and regeneration. The fiber balls of the invention is simple in structure and easy to manufacture; and the method is simple in operation and low in operating costs, and has absorption efficiency for coal tars and other impurities in the raw gas.
Description
Technical field
The present invention relates to a kind of filler that purifies coal gas and purify coal gas method, specifically, be a kind of fibrous nodules filler for the purifying method to coal gas, be applicable to the gas purification that gasification of coal, coking, low-temperature pyrolysis produce.
Background technology
Publication number is a kind of " Raschig ring filler " of CN 201710985 U, comprise ring body and circular hole, the wall of ring body is provided with 2～5 circular holes, its feature has been to improve porosity that this filler has and the circulating capacity of fluid, but this Raschig ring exists specific surface area less, the deficiency of degradation aspect under mechanical property, and this filler is not suitable for washing the packing material absorbing of coal tar in coal gas.
Publication number is that CN 1751782A discloses a kind of " screen waviness packings ", comprises the silk netting that is laminated into crack structure by two-layer or two-layer above silk screen, and silk netting is pressed into ripple sheet, by multi-layer silk screen sheet, is stacked and is formed screen waviness packings.Its advantage has been to improve the wettability of screen waviness packings, has increased effective mass transfer area, but owing to there is no versatility, needs customization, installs and has inconvenience, and do not overcome the susceptible to plugging shortcoming of loose heap material completely.
Publication number is that CN 102492490A discloses " a kind of gas purification process "; its method is to remove after macrobead dust sending into high temperature cyclone separator containing the raw gas of tar; raw gas is again through the further dedusting of high-temperature filter; coal gas after dedusting enters the coal tar fluid counter current contact washing of quenching column and 40-80 ℃ through waste heat boiler heat exchange to the coal gas of 350-300 ℃; the coal tar containing in coal gas enters in coal tar fluid, tower top wash cooling to the 40～100 ℃ clean gas cabinet of supplying gas.This technique is by washing with coal tar fluid counter current contact, being unsuitable for the purification to the high raw gas of coal tar content to coal tar pick up the oil.
Also having publication number is that CN 102010760 A disclose " a kind of gas washing udst separation technique ", this processing step is as follows: dust-laden coal gas is passed into the water coolant counter current contact washing on dedusting washing tower and its top, then with the counter current contact scrubbing dust collection of purifying waste water of tower top; It is cooling that the water of waste water after dedusting after importing settling tank precipitation at the bottom of washing tower tower is squeezed into water cooling tower by hot water pump, then the moisture that enters water cooling pond becomes two-way to use; Coal gas after washing enters the recirculated water counter current contact on purification and washing tower and its top and washs, then with the further washing, purifying of de-mineralized water counter current contact of tower top; Water after purification and washing is divided into two tunnels after importing circulation groove at the bottom of tower, and the water of a road after separation is squeezed into purification and washing tower top through recycle pump again and recycled, and another road has a small amount of water discharge circulation groove of turbidity to process outward.This craft dust removal is effective, but is unsuitable for the washing, purifying to coal tar in raw gas.
Above-mentioned packing tower adsorption stuffing and raw gas washing, purifying technique, the problem of its existence is that throughput is limited, and turndown ratio is poor, and coal tar separation efficiency is not high, and equipment is huge and do not meet energy-conserving and environment-protective requirement.In coal gas, absorb incomplete tar and also affect the work-ing life of follow-up equipment and follow-up quality product.
Absorbent cotton be by raw cotton through removing inclusion, degreasing, bleaching, washing, dry, arrange and be processed into.Absorbent cotton has good water-absorbent, and fiber softening is elongated, and pure white high resilience, containing detrimental impurity such as acid, alkali, does not more easily absorb liquid than common cotton; Man-made fiber is that to use natural polymer or synthetic polymer through chemistry or physical method modification be the fiber that raw material is made, and its kind is very many, such as trevira, glass fibre cotton etc.The present invention relates to fibrous nodules in a kind of fibrous nodules filler and be to be applicable to absorb by absorbent cotton, glass fibre cotton or other man-made fiber processing and fabricating of coal tar, can effectively solve the deficiency that above-mentioned filler exists in gas purification application, significantly improve throughput.
Summary of the invention
Method based on above-mentioned existing filler and purification coal gas thereof, the object of the invention is to further improve and purify coal gas efficiency, reduces costs, and a kind of method of fibrous nodules filler and purification coal gas thereof is provided.
To achieve these goals, the measure that the present invention takes is a kind of fibrous nodules filler and the method that purifies coal gas thereof, and wherein a kind of fibrous nodules filler, comprises spherical shell and fiber pelletizing; It is characterized in that: described spherical shell is to be constituted by fastener I and fastener II by two Stainless Steel Cloth hemispherical Shell I and Stainless Steel Cloth hemispherical Shell II; Described fiber pelletizing is and the corresponding absorbent cotton of spherical shell or glass fibre cotton that its density is 15～30 mg/cm
3, diameter is 20～80 mm.
A kind of fibrous nodules filler as above is for purifying the method for coal gas, described in it method be by coal gas by waste heat boiler heat exchange after temperature drop to 250～300 ℃, through water cooler, be cooled to after 30～80 ℃ again, bottom air inlet by absorption tower enters, through in bottom, absorption tower tower body, middle part tower body and the top tower body that fibrous nodules filler being housed and carry out absorption cleaning successively, after purification, by air outlet, top, absorption tower, send into gas storage holder, after fibrous nodules packing layer reaches capacity, fibrous nodules filler is carried out to dissection process; Wherein, the fibrous nodules filler diameter in the tower body of described bottom is 55～65 mm, and density is 15～20 mg/cm
3; Fibrous nodules filler diameter in the tower body of described middle part is 40～50 mm, and density is 20～25 mg/cm
3; Fibrous nodules filler diameter in the tower body of described top is 25～35 mm, and density is 25～30 mg/cm
3; The volume ratio of the bottom tower body on described absorption tower, middle part tower body and top tower body is 1:1.5:1.5; The fibrous nodules filler loadings on described absorption tower accounts for 70%～80% of the interior space of tower.
In aforesaid method, described coal gas is the high temperature raw gas that gasification of coal coal gas, coke-oven gas, low-temperature pyrolysis coal gas produce.Described dissection process is that fibrous nodules filler saturated in absorption tower is regenerated; Concrete grammar is to close absorption tower bottom air inlet and air outlet, top, opening set spray equipment sprinkling dehydrated alcohol resolves fibrous nodules filler, coal tar and the ethanol solution of separating out are discharged from leakage fluid dram, dehydrated alcohol after revivifier regeneration is sent into storage tank by infusion pump and is recycled as desorbed solution, and reclaims byproduct coal tar.
The method of a kind of fibrous nodules filler that the present invention is above-mentioned provided and purification coal gas thereof, compared with prior art, effectively reduced coal tar and foreign matter content in coal gas after purifying, especially improved the specific absorption of coal tar, in the coal gas after purification, the content of coal tar is at 3.0～10.0mg/m
3between, and existingly utilize the coal-tar middle oil content of coal gas after cooling washing method, electric tar oil process etc. purify generally at 20.0～60.0mg/m
3between, the inventive method is significantly increased to the decontamination effect improving of coal tar in coal gas by comparison, and has saved the energy, has reduced running cost, raw gas is purified more rationally reliable, operates easier.
Accompanying drawing explanation
Fig. 1 is the hemispherical Shell structural representation of fibrous nodules filler of the present invention.
Fig. 2 is the structural representation of fibrous nodules filler of the present invention.
Fig. 3 is a kind of purification coal gas of the present invention method flow schematic diagram.
In figure: 1: hemispherical Shell I; 2: fastener I; 3: fibrous nodules; 4: fastener II; 5: hemispherical Shell II; 6: waste heat boiler; 7: water cooler; 8: bottom air inlet; 9, leakage fluid dram; 10: bottom tower body; 11: middle part tower body; 12: top tower body; 13: absorption tower; 14: spray equipment; 15: air outlet, top; 16: storage tank; 17: revivifier; 18 infusion pumps; 19: gas storage holder.
Embodiment
Below the specific embodiment of the present invention is further illustrated.
Embodiment 1
According to the technical scheme of fibrous nodules filler of the present invention, make a kind of fibrous nodules filler, this fibrous nodules filler comprises that spherical shell part and fibrous nodules regiment headquarters divide;
As described in Figure 1, a kind of fibrous nodules and fibrous nodules filler thereof, described fibrous nodules spherical shell is to be constituted by fastener I 2 and fastener II 4 by two Stainless Steel Cloth hemispherical Shell I 1 and Stainless Steel Cloth hemispherical Shell II 5; Wherein said fibrous nodules filler is the pelletizing in fibrous nodules, is to be applicable to absorb the various man-made fiber of coal tar with the corresponding absorbent cotton of fiber spherical shell or glass fibre cotton and other, and the pellet density in fibrous nodules is 15～30 mg/cm
3, diameter is that 20～80 mm all can.
In experiment using the fibrous nodules of making when filler is used for purifying coal gas, in the time of can recording the fiber pelletizing that adopts absorbent cotton to make filler, best to the decontamination effect improving of coal gas, the coal-tar middle oil concentration of coal gas after purification is 3.0～5.0mg/m
3while adopting glass fibre cotton to make the fiber pelletizing of filler, decontamination effect improving to coal gas takes second place, the man-made fiber that adopts other to be applicable to absorb coal tar is as slightly poor to the decontamination effect improving of coal gas in trevira, polyacrylonitrile fibre etc., but the fibrous nodules filler that above various materials are made to the decontamination effect improving of coal gas compare cooling washing method, electric tar oil process is all more satisfactory, after purifying, the coal-tar middle oil content of coal gas is all at 3.0～10.0mg/m
3between.
Specific embodiment 2
According to the method and technology scheme of a kind of fibrous nodules filler of the present invention and purification coal gas thereof, adopt a kind of fibrous nodules filler of the embodiment of the present invention 1 made, fiber pelletizing is and the corresponding absorbent cotton of spherical shell; And the fibrous nodules filler of making is placed in to the absorption tower that purifies coal gas, for purifying gasification of coal coal gas, coke-oven gas, low-temperature pyrolysis coal gas.
First be according to the fibrous nodules filler that is produced as follows respectively three kinds of different sizes described in claim: (1) diameter is that 60mm, fibrous nodules density are 20mg/cm
3; (2) diameter is that 45mm, fibrous nodules density are 25mg/cm
3; (3) diameter is that 30mm, fibrous nodules density are 30mg/cm
3.
By diameter, be that 60mm, fibrous nodules density are 20mg/cm
3fibrous nodules filler be arranged in the bottom tower body 10 on absorption tower, diameter is that 45mm, fibrous nodules density are 25mg/cm
3fibrous nodules filler be arranged in the middle part tower body 11 on absorption tower, diameter is that 30mm, fibrous nodules density are 30mg/cm
3fibrous nodules filler be arranged in the top tower body 12 on absorption tower.The volume ratio of the bottom tower body 10 on described absorption tower, middle part tower body 11 and top tower body 12 is 1:1.5:1.5, and fibrous nodules filler loadings accounts for 70%～80% of the interior space of tower.
The high temperature raw gas that coke-oven plant is produced is cooled to 250～300 ℃ through waste heat boiler 6 heat exchange, through water cooler, cool to 30～80 ℃ again, raw gas passes into from absorption tower bottom air inlet 8 again, successively through the bottom tower body 10 of different size fibrous nodules filler is installed, middle part tower body 11, top tower body 12, the impurity such as tar are wherein by fibrous nodules packing material absorbing in three layers of tower body, clean gas after purification 15 is derived and to be sent into gas holder 19 through air outlet, top, through recording coal gas after the inventive method purifies, containing the concentration of tar, is 3.2mg/m
3, decontamination effect improving significantly improves, and meets the requirement to coal tar content in Chemicals subsequent production; After fibrous nodules packing material absorbing coal tar is saturated, it is resolved to regenerative operation processes, concrete grammar is to close absorption tower bottom air inlet 8 and air outlet, top 15, opening spray equipment 14 sprinkling dehydrated alcohols resolves fibrous nodules filler, the coal tar of separating out and ethanol solution are discharged from leakage fluid dram 9, dehydrated alcohol after revivifier 17 regeneration is sent into storage tank 16 by infusion pump 18 and is recycled as desorbed solution, and reclaims byproduct coal tar.
Specific embodiment 3
According to method and technology scheme of the present invention, adopt a kind of fibrous nodules filler of the embodiment of the present invention 1 made, fiber pelletizing is and the corresponding glass fibre cotton of spherical shell; And the fibrous nodules filler of making is placed in to the absorption tower that purifies coal gas, for purifying gasification of coal coal gas, coke-oven gas, low-temperature pyrolysis coal gas.
According to the specific implementation method of embodiment 2, the high temperature raw gas that gasification workshop section is produced passes into, and recording coal gas after purification is 9.3mg/m containing the concentration of coal tar
3.
Claims (3)
1. purify a method for coal gas, described method adopts fibrous nodules filler, and described fibrous nodules filler comprises spherical shell and fiber pelletizing; Described spherical shell is to be constituted by fastener I (2) and fastener II (4) by two Stainless Steel Cloth hemispherical Shell I (1) and Stainless Steel Cloth hemispherical Shell II (5); Described fiber pelletizing is and the corresponding absorbent cotton of spherical shell or glass fibre cotton that its density is 15～30 mg/cm
3, diameter is 20～80 mm; Described in it method be by coal gas by waste heat boiler (6) heat exchange after temperature drop to 250～300 ℃, through water cooler (7), be cooled to after 30～80 ℃ again, bottom air inlet (8) by absorption tower (13) enters, through in bottom, absorption tower tower body (10), middle part tower body (11) and the top tower body (12) that fibrous nodules filler being housed and carry out absorption cleaning successively, after purification, by air outlet, top, absorption tower (15), send into gas storage holder (19), after fibrous nodules packing layer reaches capacity, fibrous nodules filler is carried out to dissection process; Wherein,
Fibrous nodules filler diameter in described bottom tower body (10) is 55～65 mm, and density is 15～20 mg/cm
3;
Fibrous nodules filler diameter in described middle part tower body (11) is 40～50 mm, and density is 20～25 mg/cm
3;
Fibrous nodules filler diameter in described top tower body (12) is 25～35 mm, and density is 25～30 mg/cm
3;
The volume ratio of the bottom tower body (10) on described absorption tower, middle part tower body (11) and top tower body (12) is 1:1.5:1.5;
The fibrous nodules filler loadings on described absorption tower (13) accounts for 70%～80% of the interior space of tower.
2. a kind of method that purifies coal gas as claimed in claim 1, described in it, coal gas is the high temperature raw gas that gasification of coal coal gas, coke-oven gas, low-temperature pyrolysis coal gas produce.
3. a kind of method that purifies coal gas as claimed in claim 1, described in it, dissection process is that fibrous nodules filler saturated in absorption tower is regenerated, concrete grammar is to close absorption tower bottom air inlet (8) and air outlet, top (15), opening set spray equipment (14) sprinkling dehydrated alcohol resolves fibrous nodules filler, the coal tar of separating out and ethanol solution are discharged from leakage fluid dram (9), dehydrated alcohol after revivifier (17) regeneration is sent into storage tank (16) by infusion pump (18) and is recycled as desorbed solution, and reclaims byproduct coal tar.
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| CN201310122867.XA CN103232866B (en) | 2013-04-10 | 2013-04-10 | A fiber ball filler and a gas purification method using the same |
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| CN201310122867.XA CN103232866B (en) | 2013-04-10 | 2013-04-10 | A fiber ball filler and a gas purification method using the same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3385352A4 (en) * | 2015-11-30 | 2019-03-13 | Growth Partners, Limited | Agent for decreasing fluidity of solid-liquid mixture, and method for producing low-fluidity mixture |
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| CN105969427A (en) * | 2016-02-02 | 2016-09-28 | 海泉风雷新能源发电股份有限公司 | Gasifier exhaust pipe smoke tar-prevention component |
| CN106526038B (en) * | 2016-11-03 | 2023-08-25 | 内蒙古包钢钢联股份有限公司 | Complete device for sampling raw gas component detection sample |
| CN106635185A (en) * | 2016-11-24 | 2017-05-10 | 上海安赐环保科技股份有限公司 | System and technology for removing tar dust from coke oven gas |
| CN114522514B (en) * | 2022-02-22 | 2023-07-04 | 山东蓝湾新材料有限公司 | Gas-phase quenching circulation absorption tower for preparing acrylic acid by propylene oxidation method |
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| CN2188093Y (en) * | 1993-06-30 | 1995-01-25 | 文一波 | Suspension biologic filler without producing of residual sludge |
| CN2325103Y (en) * | 1998-02-24 | 1999-06-23 | 叶天然 | Apparatus for purifying waste air |
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| EP3385352A4 (en) * | 2015-11-30 | 2019-03-13 | Growth Partners, Limited | Agent for decreasing fluidity of solid-liquid mixture, and method for producing low-fluidity mixture |
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