CN203264546U - Cyclic absorption device for hydrogen chloride tail gas - Google Patents
Cyclic absorption device for hydrogen chloride tail gas Download PDFInfo
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- CN203264546U CN203264546U CN 201320278752 CN201320278752U CN203264546U CN 203264546 U CN203264546 U CN 203264546U CN 201320278752 CN201320278752 CN 201320278752 CN 201320278752 U CN201320278752 U CN 201320278752U CN 203264546 U CN203264546 U CN 203264546U
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- hydrochloric acid
- absorption tower
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- hydrogen chloride
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Abstract
The utility model mainly aims at the problems that a worker does not exchange acid timely, the alkaline consumption is high, and the hydrogen chloride tail gas is sampled and measured by the worker in an existing intermittent or non-constant hydrogen chloride tail gas cyclic absorption technology and provides a cyclic absorption device for hydrogen chloride tail gas. The device comprises a hydrochloric acid absorption tower, an alkaline liquid absorption tower and a tail gas feeding pipe and also comprises a hydrochloric acid concentration control device, a hydrochloric acid qualified product tank, a hydrochloric acid circulating tank, a hydrochloric acid circulating pump, an alkaline liquid circulating tank, an alkaline liquid circulating pump and a draught fan; the hydrochloric acid absorption tower comprises a first-stage hydrochloric acid absorption tower and a second-stage hydrochloric acid absorption tower; the first-stage hydrochloric acid absorption tower, the second-stage hydrochloric acid absorption tower and the alkaline liquid absorption tower are connected in series with one another; the tail gas feeding pipe is connected with the first-stage hydrochloric acid absorption tower; the hydrochloric acid circulating tank comprises a first-stage hydrochloric acid circulating tank and a second-stage hydrochloric acid circulating tank; the hydrochloric acid circulating pump comprises a first-stage hydrochloric acid circulating pump and a second-stage hydrochloric acid circulating pump.
Description
Technical field
The utility model belongs to environmental technology field, relates to a kind of hydrogen chloride tail gas circulation absorption plant of producing by-product hydrochloric acid that absorbs for hydrogen chloride tail gas.
Background technology
Chloride chemicals is the bulk raw material of Chemical Manufacture, product is widely used, be that raw material tends to emit hydrogen chloride tail gas by the chloride chemicals that chlorination reaction obtains with chlorine, and the hydrogen chloride gas that has quite a few reaction to generate is that intermittence or generating rate are to change.Absorb the process that generates by-product hydrochloric acid by water, the method that each manufacturer comparatively generally adopts is that water carries out secondary or three grades of circulations absorb, make certain density hydrochloric acid (general control is 32%), then the hydrogen chloride that does not absorb fully by absorbing by liquid caustic soda or the chlorine of escape.When the hydrogen chloride gas flow in tail gas is large, need carry out the absorption in parallel of several covering devices.Circulations at different levels multistage or in parallel absorb, and need to complete by the salt acid circulating pump.The salt acid circulating pump consumes energy, fragile, operating cost is high, the normal U.S. meter of artificial simple and easy mother-in-law or the densimeter measurement of adopting of the control of concentration of hydrochloric acid, and manual switching is completed.When hydrochloric acid sampling and measuring, the hydrochloric acid collection and treatment of measurement, acid gas is heavy, easily produce air pollution, easily spattered by mistake, thereby works the mischief.In addition, reach the inconsistent problem that timely pump is walked concentrated hydrochloric acid that can occur because manually changing the hydrochlorate acid concentration, cause not absorb completely hydrogen chloride and enter alkali and absorb, alkaline consumption is increased, the waste water of generation increases, and cost improves.Therefore, in order to improve absorption efficiency, reduce energy consumption, reduce alkali lye consumption, improve operating environment, need to adopt a kind of efficient hydrogen chloride tail gas circulation absorption plant.
Summary of the invention
The utility model mainly for existing intermittently or exist in non-constant hydrogen chloride tail gas circulation absorption techniques manually in time do not change acid, alkaline consumption high, need the problem such as manual sampling measurement, a kind of hydrogen chloride tail gas circulation absorption plant is provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of hydrogen chloride tail gas circulation absorption plant, comprise hydrochloric acid absorption tower, alkali liquor absorption tower and tail gas inlet pipe, this absorption plant also comprises concentration of hydrochloric acid control device, hydrochloric acid certified products groove, hydrochloric acid circulating slot, salt acid circulating pump, alkali lye circulating slot, NaOH solution circulating pump and air-introduced machine, described hydrochloric acid absorption tower comprises one-level hydrochloric acid absorption tower and secondary hydrochloric acid absorption tower, one-level hydrochloric acid absorption tower, secondary hydrochloric acid absorption tower and alkali liquor absorption tower are connected by pipeline successively, and described tail gas inlet pipe is connected with the one-level hydrochloric acid absorption tower; The hydrochloric acid circulating slot comprises a grade hydrochloric acid circulating slot and two grade hydrochloric acid circulating slots, and the salt acid circulating pump comprises a grade hydrochloric acid circulating pump and two grade hydrochloric acid circulating pumps;
Described concentration of hydrochloric acid control device comprises three-way pipe, inlet, the first outlet, the second outlet, described inlet is located at an end of three-way pipe horizontal direction, the other end of three-way pipe horizontal direction is connected with pipeline with bend pipe and forms the second outlet, a three-way pipe end up is communicated with the first outlet, and be provided with ball float outlet orifice plate between three-way pipe and the first outlet, be provided with concentration in a three-way pipe end pipe up and control ball float, concentration control ball float is positioned at ball float outlet orifice plate below and is mated and makes a three-way pipe end sealing up; The height of the second outlet is higher than the first outlet;
Inlet is connected with one-level absorption by Hydrochloric Acid tower bottom, and the first outlet is connected with a grade hydrochloric acid circulating slot, and the second outlet is connected with hydrochloric acid certified products groove;
One grade hydrochloric acid circulating slot is connected to the top of one-level hydrochloric acid absorption tower by a grade hydrochloric acid circulating pump; Two grade hydrochloric acid circulating slots are connected with secondary absorption by Hydrochloric Acid tower bottom, two grade hydrochloric acid circulating slots are connected to the top of secondary hydrochloric acid absorption tower by two grade hydrochloric acid circulating pumps, the alkali lye circulating slot is connected by pipeline with the alkali liquor absorption tower bottom, between alkali lye circulating slot and alkali liquor absorption tower, return line is set also, return line is provided with NaOH solution circulating pump, and the alkali liquor absorption tower is connected by the exhaust outlet pipe with air-introduced machine.
For improving assimilation effect and comprehensive utilization of resources, its absorption by Hydrochloric Acid of hydrochloric acid circulating absorption solution in one grade hydrochloric acid circulating slot is to finite concentration, flow into voluntarily hydrochloric acid certified products groove by the concentration of hydrochloric acid control device, hydrochloric acid circulating absorption solution pump to grade hydrochloric acid circulating slot after liquid level reduces in two grade hydrochloric acid circulating slots continues circulation and absorbs, and two grade hydrochloric acid circulating slots add fresh water.Alkali circulating absorption solution in the liquid caustic soda circulating slot absorbs to nearly neutrality, and generating has the clorox byproduct of certain capacity for sale.
As preferably, between a described grade hydrochloric acid circulating slot and secondary hydrochloric acid absorption tower, connecting line is set.
As preferably, described tail gas inlet pipe is connected with the tower top of one-level hydrochloric acid absorption tower.
As preferably, described hydrochloric acid absorption tower adopts graphite material or uses graphite liner, the pipeline that is connected with hydrochloric acid absorption tower employing steel lining tetrafluoro or plastic tube.
As preferably, described hydrochloric acid absorption tower adopts graphite material or uses graphite liner, the pipeline that is connected with hydrochloric acid absorption tower employing steel lining tetrafluoro or plastic tube.As preferably, establish packing layer in described hydrochloric acid absorption tower, packing layer adopts φ 20 * 20 tetrafluoro material Pall rings.As preferably, described tail gas inlet pipe and alkali liquor absorption tower adopt the polypropylene plastics structure.In the utility model, one-level, secondary absorb with hydrochloric acid solution recycle unit material selection graphite, and the connecting pipe material can be selected steel lining tetrafluoro or plastic tube, and three grades of absorptions are made absorbing medium with liquid caustic soda, and equipment and connecting pipe material can be selected polypropylene plastics.
The key of this hydrogen chloride tail gas circulation absorption plant is in time to remove the hydrochloric acid that reaches concentration, do not need manual sampling, measurement is to the constant or more constant hydrogen chloride tail gas of exhaust flow, be commonly used in front end by gas and discharge is proportional enters, the concentrated hydrochloric acid that disposable generation is qualified, rear secondary absorbs and adopts circulation to absorb the method that work replenishes, so this device applicability is wide.
The utility model absorbs through primary acids by hydrogen chloride tail gas, secondary acid absorbs and three grades of alkali absorb after discharging, one-level absorbs and secondary absorbs and all adopts water as absorption liquid, three grades of absorption employing mass concentrations are 10% liquid caustic soda (NaOH) solution.The utility model generates by-product hydrochloric acid for sale with the hydrogen chloride gas in water circulation absorption chlorinated exhaust.For guaranteeing assimilation effect, the alkali lye circulating slot can be installed pH meter, and automatic alarm when alkali lye content is low is with timely replacing alkali lye.The utility model absorption plant is simple in structure, and material is common, and is easy to operate, and operating cost is low, good absorbing effect.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model concentration of hydrochloric acid control device;
in figure: 1, tail gas inlet pipe 2, one-level hydrochloric acid absorption tower 3, concentration of hydrochloric acid control device 31, inlet 32, the first outlet 33, ball float outlet orifice plate 34, concentration is controlled ball float 35, three-way pipe 36, the second outlet 4, hydrochloric acid certified products groove 5, one grade hydrochloric acid circulating slot 6, one grade hydrochloric acid circulating pump 7, secondary hydrochloric acid absorption tower 8, two grade hydrochloric acid circulating slots 9, two grade hydrochloric acid circulating pumps 10, alkali liquor absorption tower 11, alkali lye circulating slot 12, NaOH solution circulating pump 13, exhaust outlet pipe 14, air-introduced machine.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
A kind of hydrogen chloride tail gas circulation absorption plant as shown in Figure 1 comprises hydrochloric acid absorption tower, alkali liquor absorption tower 10, tail gas inlet pipe 1, concentration of hydrochloric acid control device 3, hydrochloric acid certified products groove 4, hydrochloric acid circulating slot, salt acid circulating pump, alkali lye circulating slot 11, NaOH solution circulating pump 12 and air-introduced machine 14.Hydrochloric acid absorption tower comprises one-level hydrochloric acid absorption tower 2 and secondary hydrochloric acid absorption tower 7, and one-level hydrochloric acid absorption tower, secondary hydrochloric acid absorption tower and alkali liquor absorption tower are connected by pipeline successively, and tail gas inlet pipe 1 is connected with the tower top of one-level hydrochloric acid absorption tower; The hydrochloric acid circulating slot comprises a grade hydrochloric acid circulating slot 5 and two grade hydrochloric acid circulating slots 8, and the salt acid circulating pump comprises a grade hydrochloric acid circulating pump 6 and two grade hydrochloric acid circulating pumps 9.
As shown in Figure 2, concentration of hydrochloric acid control device 3 is formed by connecting by three-way pipe 35 and two steel lining tetrafluoro bend pipes of steel lining tetrafluoro.The concentration of hydrochloric acid control device is provided with inlet 31, first outlet the 32, second outlet 36, inlet is located at an end of three-way pipe horizontal direction, the other end of three-way pipe horizontal direction is connected with pipeline with bend pipe and forms the second outlet, a three-way pipe end up is communicated with the first outlet, and be provided with ball float outlet orifice plate 33 between three-way pipe and the first outlet, be provided with concentration in a three-way pipe end pipe up and control ball float 34, concentration control ball float is positioned at ball float outlet orifice plate below and is mated and makes a three-way pipe end sealing up; The second height that exports makes the second outlet and the first outlet that individual hydraulic pressure difference is arranged higher than the first outlet like this, if when concentration control ball float does not seal ball float outlet orifice plate 33, the hydrochloric acid circulation fluid flows out from the first outlet 32.
The inlet of concentration of hydrochloric acid control device 3 is connected with one-level absorption by Hydrochloric Acid tower bottom, and the first outlet is connected with a grade hydrochloric acid circulating slot, and the second outlet is connected with hydrochloric acid certified products groove.
One grade hydrochloric acid circulating slot 5 is connected to the top of one-level hydrochloric acid absorption tower 2 by a grade hydrochloric acid circulating pump 6; The top of two grade hydrochloric acid circulating slots 8 is connected with secondary hydrochloric acid absorption tower 7 bottoms, be connected to the top of secondary hydrochloric acid absorption tower 7 bottom two grade hydrochloric acid circulating slots by two grade hydrochloric acid circulating pumps 9, the alkali lye circulating slot is connected by pipeline with the alkali liquor absorption tower bottom, between alkali lye circulating slot and alkali liquor absorption tower, return line is set also, return line is provided with NaOH solution circulating pump, and the alkali liquor absorption tower is connected by exhaust outlet pipe 13 with air-introduced machine.
Between one grade hydrochloric acid circulating slot and secondary hydrochloric acid absorption tower, connecting line is set also.
Two hydrochloric acid absorption towers adopt graphite material or use graphite liner, and the pipeline that is connected with hydrochloric acid absorption tower adopts steel lining tetrafluoro or plastic tube.Tail gas inlet pipe and alkali liquor absorption tower adopt the polypropylene plastics structure.
Establish packing layer in hydrochloric acid absorption tower, packing layer adopts φ 20 * 20 tetrafluoro material Pall rings.
The hydrochloric acid circulation fluid enters under one-level hydrochloric acid absorption tower 2 overhead stream from tail gas inlet pipe 1 and contacts by enrichment with hydrogen chloride gas, flows out the inlet 31 that enters concentration of hydrochloric acid control device 3 from tower bottom.When concentration of hydrochloric acid was low, hydrochloric acid density was low, and concentration is controlled ball float 34 and can not be floated, and the hydrochloric acid circulation fluid flows into grade hydrochloric acid circulating slots from the first outlet 32, and higher than the first outlet, the hydrochloric acid circulation fluid does not flow out due to the position of the second outlet 36.
When the hydrochloric acid circulation fluid reaches certified concentration, the high concentration that makes of hydrochloric acid density is controlled ball float 34 risings, withstands ball float outlet orifice plate 33, the first outlet sealings that are positioned on concentration control ball float 34, circulation fluid flows to hydrochloric acid certified products groove 4 through the second outlet, realizes the timely outflow of concentration of hydrochloric acid.
If the hydrogen chloride of tail gas is without entering or enter on a small quantity the one-level hydrochloric acid absorption tower, when the concentration of hydrochloric acid of a grade hydrochloric acid circulating slot was inadequate, concentration was controlled in time sinking of ball float 34, and the hydrochloric acid circulation fluid also flows into a grade hydrochloric acid circulating slot again.
this device can make the hydrogen chloride tail gas of different flow that very high absorption elasticity is arranged, packing section by the one-level hydrochloric acid absorption tower, the membrane type absorber portion, cooling section, the integrated absorption of segregation section, absorbing through a grade hydrochloric acid circulating pump circulation to make the absorptivity of hydrogen chloride reach more than 90%, the tail gas that the one-level hydrochloric acid absorption tower flows out flows into secondary hydrochloric acid absorption tower (the same grade hydrochloric acid of structure absorption tower), absorb through two grade hydrochloric acid circulating pump circulations, the absorptivity of hydrogen chloride is reached more than 98%, a small amount of unabsorbed hydrogen chloride and unreacted chlorine enter the alkali liquor absorption tower, obtain absorbing fully by air-introduced machine 14 and suck rear qualified discharge.
Above-described embodiment is a kind of better scheme of the present invention, is not that the present invention is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (7)
1. hydrogen chloride tail gas circulation absorption plant, comprise hydrochloric acid absorption tower, alkali liquor absorption tower and tail gas inlet pipe, it is characterized in that: this absorption plant also comprises concentration of hydrochloric acid control device, hydrochloric acid certified products groove, hydrochloric acid circulating slot, salt acid circulating pump, alkali lye circulating slot, NaOH solution circulating pump and air-introduced machine, described hydrochloric acid absorption tower comprises one-level hydrochloric acid absorption tower and secondary hydrochloric acid absorption tower, one-level hydrochloric acid absorption tower, secondary hydrochloric acid absorption tower and alkali liquor absorption tower are connected by pipeline successively, and described tail gas inlet pipe is connected with the one-level hydrochloric acid absorption tower; The hydrochloric acid circulating slot comprises a grade hydrochloric acid circulating slot and two grade hydrochloric acid circulating slots, and the salt acid circulating pump comprises a grade hydrochloric acid circulating pump and two grade hydrochloric acid circulating pumps;
Described concentration of hydrochloric acid control device comprises three-way pipe, inlet, the first outlet, the second outlet, described inlet is located at an end of three-way pipe horizontal direction, the other end of three-way pipe horizontal direction is connected with pipeline with bend pipe and forms the second outlet, a three-way pipe end up is communicated with the first outlet, and be provided with ball float outlet orifice plate between three-way pipe and the first outlet, be provided with concentration in a three-way pipe end pipe up and control ball float, concentration control ball float is positioned at ball float outlet orifice plate below and is mated and makes a three-way pipe end sealing up; The height of the second outlet is higher than the first outlet;
Inlet is connected with one-level absorption by Hydrochloric Acid tower bottom, and the first outlet is connected with a grade hydrochloric acid circulating slot, and the second outlet is connected with hydrochloric acid certified products groove;
One grade hydrochloric acid circulating slot is connected to the top of one-level hydrochloric acid absorption tower by a grade hydrochloric acid circulating pump; Two grade hydrochloric acid circulating slots are connected with secondary absorption by Hydrochloric Acid tower bottom, two grade hydrochloric acid circulating slots are connected to the top of secondary hydrochloric acid absorption tower by two grade hydrochloric acid circulating pumps, the alkali lye circulating slot is connected by pipeline with the alkali liquor absorption tower bottom, between alkali lye circulating slot and alkali liquor absorption tower, return line is set also, return line is provided with NaOH solution circulating pump, and the alkali liquor absorption tower is connected by the exhaust outlet pipe with air-introduced machine.
2. hydrogen chloride tail gas circulation absorption plant according to claim 1, is characterized in that: between a described grade hydrochloric acid circulating slot and secondary hydrochloric acid absorption tower, connecting line is set.
3. hydrogen chloride tail gas circulation absorption plant according to claim 1 and 2, it is characterized in that: described tail gas inlet pipe is connected with the tower top of one-level hydrochloric acid absorption tower.
4. hydrogen chloride tail gas circulation absorption plant according to claim 1 and 2, is characterized in that: described hydrochloric acid absorption tower employing graphite material or use graphite liner, the pipeline that is connected with hydrochloric acid absorption tower employing steel lining tetrafluoro or plastic tube.
5. hydrogen chloride tail gas circulation absorption plant according to claim 3, is characterized in that: described hydrochloric acid absorption tower employing graphite material or use graphite liner, the pipeline that is connected with hydrochloric acid absorption tower employing steel lining tetrafluoro or plastic tube.
6. hydrogen chloride tail gas circulation absorption plant according to claim 1 and 2, is characterized in that: establish packing layer in described hydrochloric acid absorption tower, packing layer employing φ 20 * 20 tetrafluoro material Pall rings.
7. hydrogen chloride tail gas circulation absorption plant according to claim 1 and 2, is characterized in that: described tail gas inlet pipe and alkali liquor absorption tower employing polypropylene plastics structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320278752 CN203264546U (en) | 2013-05-21 | 2013-05-21 | Cyclic absorption device for hydrogen chloride tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320278752 CN203264546U (en) | 2013-05-21 | 2013-05-21 | Cyclic absorption device for hydrogen chloride tail gas |
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| CN203264546U true CN203264546U (en) | 2013-11-06 |
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| CN 201320278752 Expired - Lifetime CN203264546U (en) | 2013-05-21 | 2013-05-21 | Cyclic absorption device for hydrogen chloride tail gas |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226087A (en) * | 2014-09-10 | 2014-12-24 | 常熟市承禹环境科技有限公司 | Waste gas treatment device in production of polyaluminum ferric chloride |
| CN105013279A (en) * | 2015-07-13 | 2015-11-04 | 湖北泰盛化工有限公司 | Triethylamine tail gas and hydrochloric acid mist comprehensive treatment device |
| CN105327593A (en) * | 2015-11-12 | 2016-02-17 | 中国石油化工股份有限公司 | Hydrochloric acid treatment device and treatment method for ship loading operation |
| CN105366747A (en) * | 2015-11-27 | 2016-03-02 | 昆山市千灯三废净化有限公司 | Resource-converting treatment device for PCB (Printed Circuit Board) acidic etching solution |
| CN105413398A (en) * | 2015-11-12 | 2016-03-23 | 中国石油化工股份有限公司 | Tertiary-butanol-containing gas recycling method |
| CN105435589A (en) * | 2015-11-12 | 2016-03-30 | 中国石油化工股份有限公司 | Hydrochloric acid recovery system and method for ship-loading operation |
| CN106474902A (en) * | 2015-11-25 | 2017-03-08 | 衡阳市锦轩化工有限公司 | A kind of system and method for preparing sodium hypochlorite with AC tail gas |
| CN107961645A (en) * | 2016-10-19 | 2018-04-27 | 中国石油化工股份有限公司 | A kind of processing method of chloride tail gas |
| CN109647058A (en) * | 2017-10-11 | 2019-04-19 | 山东江岳科技开发股份有限公司 | A kind of processing equipment of the baking tail gases of Hcl containing high concentration |
| CN110294458A (en) * | 2019-06-04 | 2019-10-01 | 利尔化学股份有限公司 | A kind of method and apparatus that alkyl dichloride phosphine synthesis by-product hydrogen chloride purifies online |
| CN112830452A (en) * | 2021-01-21 | 2021-05-25 | 河北北方学院 | Gas purification equipment for producing hydrogen based on utilization of waste heat of high-temperature fuel |
| CN115138184A (en) * | 2022-07-25 | 2022-10-04 | 福建康峰新材料有限公司 | Purification method of chlorination reaction tail gas and application thereof |
-
2013
- 2013-05-21 CN CN 201320278752 patent/CN203264546U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226087A (en) * | 2014-09-10 | 2014-12-24 | 常熟市承禹环境科技有限公司 | Waste gas treatment device in production of polyaluminum ferric chloride |
| CN105013279A (en) * | 2015-07-13 | 2015-11-04 | 湖北泰盛化工有限公司 | Triethylamine tail gas and hydrochloric acid mist comprehensive treatment device |
| CN105327593A (en) * | 2015-11-12 | 2016-02-17 | 中国石油化工股份有限公司 | Hydrochloric acid treatment device and treatment method for ship loading operation |
| CN105413398A (en) * | 2015-11-12 | 2016-03-23 | 中国石油化工股份有限公司 | Tertiary-butanol-containing gas recycling method |
| CN105435589A (en) * | 2015-11-12 | 2016-03-30 | 中国石油化工股份有限公司 | Hydrochloric acid recovery system and method for ship-loading operation |
| CN106474902A (en) * | 2015-11-25 | 2017-03-08 | 衡阳市锦轩化工有限公司 | A kind of system and method for preparing sodium hypochlorite with AC tail gas |
| CN105366747A (en) * | 2015-11-27 | 2016-03-02 | 昆山市千灯三废净化有限公司 | Resource-converting treatment device for PCB (Printed Circuit Board) acidic etching solution |
| CN105366747B (en) * | 2015-11-27 | 2017-10-17 | 昆山市千灯三废净化有限公司 | A kind of PCB acidic etching liquids processing equipment for recycling |
| CN107961645A (en) * | 2016-10-19 | 2018-04-27 | 中国石油化工股份有限公司 | A kind of processing method of chloride tail gas |
| CN109647058A (en) * | 2017-10-11 | 2019-04-19 | 山东江岳科技开发股份有限公司 | A kind of processing equipment of the baking tail gases of Hcl containing high concentration |
| CN110294458A (en) * | 2019-06-04 | 2019-10-01 | 利尔化学股份有限公司 | A kind of method and apparatus that alkyl dichloride phosphine synthesis by-product hydrogen chloride purifies online |
| CN112830452A (en) * | 2021-01-21 | 2021-05-25 | 河北北方学院 | Gas purification equipment for producing hydrogen based on utilization of waste heat of high-temperature fuel |
| CN112830452B (en) * | 2021-01-21 | 2022-09-27 | 河北北方学院 | Gas purification equipment for producing hydrogen based on utilization of waste heat of high-temperature fuel |
| CN115138184A (en) * | 2022-07-25 | 2022-10-04 | 福建康峰新材料有限公司 | Purification method of chlorination reaction tail gas and application thereof |
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Granted publication date: 20131106 |