CN105879798A - Gas-liquid flash reaction process - Google Patents
Gas-liquid flash reaction process Download PDFInfo
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- CN105879798A CN105879798A CN201610343260.8A CN201610343260A CN105879798A CN 105879798 A CN105879798 A CN 105879798A CN 201610343260 A CN201610343260 A CN 201610343260A CN 105879798 A CN105879798 A CN 105879798A
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- gas
- reaction
- liquid
- kettle
- solution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
Abstract
The invention relates to the technical field of chemical industry and particularly relates to a gas-liquid flash reaction process. According to the process, a gas-liquid reaction occurs in a sealed pressure-bearing reaction kettle and the process comprises the following steps: feeding a solution to be treated into a kettle body of a reaction kettle, wherein the liquid level of the solution is lower than an atomization nozzle all the time; after evacuating air in a residual space of the kettle body, full filling with reaction gas from a gas inlet; pumping the solution to the atomization nozzle through a circulating pump and atomizing the solution through the atomization nozzle; and enabling atomized tiny liquid drops to react with the gas in the kettle body. The problems in an existing gas-liquid reaction process that the requirement on the solubility of liquid is high, the reaction time is long, the utilization rate of the gas is low and the energy consumption is great are solved, and the equipment investment and the production cost can be greatly reduced. The reaction is carried out in the sealed pressure-bearing reaction kettle and the equipment investment is small; the liquid drops with relatively small grain diameter, which are generated by the atomization nozzle, react with the gas, no requirements on the concentration of the solution are needed, the speed of the gas-liquid reaction is rapid, the energy consumption is low and the production cost is reduced.
Description
Technical field
Patent of the present invention relates to chemical technology field, the technique of a kind of gas-liquid flash reaction.
Background technology
A lot of Chemical Manufacture need liquid and gas generation chemical reaction, to allow certain material in liquid and gas
Physical ability reacts rapidly, thus obtains required novel substance.In practical operation, due to gas-to-liquid contact face
Less, a lot of gas stabilization are preferable, and real reaction speed is very slow, and the way of routine is to increase this gas
Body dissolubility in a liquid, thus reach to accelerate the purpose of response speed, promote the efficiency produced, but should
The realization of method is currently and uses the air of supply flood tide or other gas to react, and gas effciency is very
Low, equipment investment is big, and energy consumption, material consumption are the highest, and solution concentration requires height, otherwise produce be difficult to into
OK.It is thus desirable to research and develop new technology and the equipment that a kind of air-liquid energy moment reacts, and to solution concentration
No requirement (NR), reduction energy consumption, the purpose of material consumption can reach, and equipment investment and production cost are greatly reduced.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is provided that the technique of the gas-liquid flash reaction of a kind of simple in construction,
Solve the dissolubility in liquid is required by existing gas liquid reaction technique height, response time length and big the asking of energy consumption
Topic, and equipment investment and production cost can be greatly reduced.
The technical scheme is that and be achieved in that: the technique of this gas-liquid flash reaction, use airtight
Gas liquid reaction is there is, it is characterised in that comprise the following steps in pressure-bearing reactor:
(A), need to process solution by solution inlet toward squeezing in the kettle of reactor, liquid level of solution is consistently lower than
Atomizer；
(B), emptying kettle remaining space air after, gas access be full of reacting gas；
(C), solution by circulating pump pump at atomizer, by atomizer by solution atomization；
(D), atomization after fine droplet fall during react with gas in kettle rapidly, treat liquid
When dropping to liquid phase, gas liquid reaction completes.
Preferably, in described step (B), the pressure p in kettle is 0.1～1.6MPa.
Described gas is compressed gas or liquid gas, and described gas makes pressure-bearing reactor by the pressure of self
Interior reaction with pressure.
Further, described pressure-bearing reactor includes kettle and coupled circulating pump, and described kettle is on it
Side is provided with solution inlet, gas access and coolant outlet, is provided with cooling water inlet and sample tap below.
Preferably, described pressure-bearing reactor bear pressure limit 0.1～1.6MPa.
Preferably, described kettle is provided with heating-cooling external jacket in institute.
Preferably, described circulating pump is that gas-liquid mixing pump promotes reaction efficiency further.
The present invention solves defect present in background technology, has the advantages that
The present invention solve the dissolubility in liquid is required by existing gas liquid reaction technique height, response time length and
The problem that energy consumption is big, gas effciency is low, and equipment investment and production cost can be greatly reduced.By using
Reacting in airtight pressure-bearing reactor, reactor pressure-bearing is high, can also arrange according to the character of reacting substance
Heating-cooling external jacket, to meet the needs of technique, equipment investment is little；Relatively granule is produced by atomizer
The drop in footpath and gas reaction, to solution concentration no requirement (NR), gas liquid reaction speed is fast, energy consumption is low, gas is sharp
With rate height, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of pressure-bearing reactor in the present invention；
In figure: 1-circulating pump, 2-kettle, 3-cooling water inlet, 4-atomizer, 5-gas access, 6-
Solution inlet, 7-coolant outlet, 8-sample tap.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
Embodiment 1
The present invention with in treating tail gas, the sulfur dioxide in ammonia absorption tail gas, output ammonium sulfite solution.
Ammonium sulfite solution is aerobic turns to ammonium sulfate, and as a example by just producing ammonium sulfate fertilizer, existing current way is
The air using flood tide aoxidizes, and gas effciency is the lowest, and equipment investment is big, and energy consumption is the highest, and
Solution concentration is required height, inferior sulfate radical concentration need≤150g/l, otherwise produces and be difficult to.And use this
The new technology of bright gas-liquid flash reaction, to solution concentration no requirement (NR) (being not up to supersaturation crystallization),
Equipment investment can be greatly reduced, and the least energy consumption can achieve the goal, so that production cost declines to a great extent.
Concrete, the technique of gas-liquid flash of the present invention reaction need to use and occur gas-liquid anti-in airtight pressure-bearing reactor
Should, comprise the following steps:
(A), solution (ammonium sulfite solution) need to be processed by solution inlet 6 toward squeezing in the kettle 2 of reactor,
Liquid level of solution is consistently lower than atomizer 4；
(B), emptying kettle 2 remaining space air after, gas access 5 be full of reacting gas (oxygen)；Still
Pressure p 0.1～0.2MPa in body 2；
(C), solution by circulating pump 1 pump at atomizer 4, by atomizer 4 by solution atomization；
(D), atomization after fine droplet fall during react with gas in kettle 2 rapidly, treat
When drop drops down onto liquid phase, gas liquid reaction completes.
Gas is compression bottle oxugen, and gas is reaction with pressure in making pressure-bearing reactor by the pressure of self.?
The atomizing effect of liquid the best (i.e. liquid grain diameter after atomization is the smaller the better), gas liquid reaction speed in this technique
The fastest；In this technique kettle 2, pressure is if desired for being middle pressure, high pressure even supertension, can be according to need
Reactor pressure-bearing grade to be designed.
Pressure-bearing reactor as shown in Figure 1, it includes kettle 2 and coupled circulating pump 1, and kettle 2 is on it
Side is provided with solution inlet 6, gas access 5 and coolant outlet 7, is provided with cooling water inlet 3 below and takes
Sample mouth 8.Pressure-bearing reactor bear pressure limit 0.1～1.6MPa.Kettle 2 is provided with outside heating-cooling
Chuck is used for carrying out heating and cooling, to meet the needs of technique.The preferred gas-liquid mixing pump of circulating pump 1, can reach
Promote the technique effect of response speed.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (7)
1. a technique for gas-liquid flash reaction, uses and gas liquid reaction occurs in airtight pressure-bearing reactor,
It is characterized in that, comprise the following steps:
(A), need to process solution by solution inlet (6) toward squeezing in the kettle (2) of reactor, liquid level of solution begins
Eventually less than atomizer (4)；
(B), emptying kettle (2) remaining space air after, by gas access (5) be full of reacting gas；
(C), solution by circulating pump (1) pump to atomizer (4) place, by atomizer (4) by solution mist
Change；
(D), atomization after fine droplet fall during react with gas in kettle (2) rapidly,
When drop drops down onto liquid phase, gas liquid reaction completes.
The technique of gas-liquid flash the most according to claim 1 reaction, it is characterised in that: described step (B)
In, the pressure p in kettle (2) is 0.1～1.6MPa.
The technique of gas-liquid flash the most according to claim 2 reaction, it is characterised in that: described gas is
Compressed gas or liquid gas, described gas is reaction with pressure in making pressure-bearing reactor by the pressure of self.
The technique of gas-liquid flash the most according to any one of claim 1 to 3 reaction, it is characterised in that:
Described pressure-bearing reactor includes kettle (2) and coupled circulating pump (1), and described kettle (2) sets above it
Have solution inlet (6), gas access (5) and coolant outlet (7), be provided with below cooling water inlet (3) and
Sample tap (8).
The technique of gas-liquid flash the most according to claim 4 reaction, it is characterised in that: described pressure-bearing
Reactor bear pressure limit 0.1～1.6MPa.
The technique of gas-liquid flash the most according to claim 5 reaction, it is characterised in that: described kettle
(2) heating-cooling external jacket it is provided with.
The technique of gas-liquid flash the most according to claim 6 reaction, it is characterised in that: described circulation
Pump (1) is gas-liquid mixing pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343260.8A CN105879798A (en) | 2016-05-23 | 2016-05-23 | Gas-liquid flash reaction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343260.8A CN105879798A (en) | 2016-05-23 | 2016-05-23 | Gas-liquid flash reaction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105879798A true CN105879798A (en) | 2016-08-24 |
Family
ID=56716777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610343260.8A Pending CN105879798A (en) | 2016-05-23 | 2016-05-23 | Gas-liquid flash reaction process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990007370A1 (en) * | 1989-01-05 | 1990-07-12 | Olin Corporation | Salt handling apparatus for a hypochlorous acid reactor |
| CN2367383Y (en) * | 1998-10-30 | 2000-03-08 | 山东省化工规划设计院 | Gas-liquid reactor |
| US6187881B1 (en) * | 1996-05-24 | 2001-02-13 | Bp Chemicals Limited | Process for polymerizing olefins |
| CN101010280A (en) * | 2004-09-02 | 2007-08-01 | 伊斯曼化学公司 | Optimized liquid-phase oxidation |
| CN104548876A (en) * | 2006-10-03 | 2015-04-29 | 阿尔斯托姆科技有限公司 | Method and apparatus for improved gas/fluid contact |
-
2016
- 2016-05-23 CN CN201610343260.8A patent/CN105879798A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990007370A1 (en) * | 1989-01-05 | 1990-07-12 | Olin Corporation | Salt handling apparatus for a hypochlorous acid reactor |
| US6187881B1 (en) * | 1996-05-24 | 2001-02-13 | Bp Chemicals Limited | Process for polymerizing olefins |
| CN2367383Y (en) * | 1998-10-30 | 2000-03-08 | 山东省化工规划设计院 | Gas-liquid reactor |
| CN101010280A (en) * | 2004-09-02 | 2007-08-01 | 伊斯曼化学公司 | Optimized liquid-phase oxidation |
| CN104548876A (en) * | 2006-10-03 | 2015-04-29 | 阿尔斯托姆科技有限公司 | Method and apparatus for improved gas/fluid contact |
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Application publication date: 20160824 |