How to deal with organic waste gas in chemical plants?

First of all, the production process and equipment should be reformed, pollutants should be reduced, wastewater discharge should be prevented, and comprehensive utilization should be carried out. For wastewater that must be discharged, the degree of treatment should be selected according to the quality of the water and requirements.

The primary treatment mainly separates suspended solids, colloids, oil slicks or heavy oils in the water. It can be used for water quality and quantity adjustment, natural precipitation, etcmethods such as floating and oil separation.

Secondary treatment is mainly to remove biodegradable organic dissolved substances and some colloidal substances, reduce the biochemical oxygen demand and part of the chemical oxygen demand in wastewater, and usually use biological treatment.

There are 3 methods for waste gas treatment in chemical plants.

1. Absorption method: In terms of controlling the pollution of organic compounds such as chemical waste gas, the chemical absorption method adopts more than Duoduo, such as using water absorption method and naphthalene or o-xylene as raw materials, and the waste gas containing phthalic anhydride, maleic anhydride, benzoic acid, naphthoquinone, etc. is produced when producing phthalic anhydride; Absorb chlorohydrin with water and alkali solution to treat the tail gas (acidic component) of hypochlorous acidification tower in the production of propylene oxide, and absorb the phenol-containing waste gas in the production of phenol by sulfonation method by alkali liquid circulation method, and then use acidification absorption solution to phenol; The formaldehyde-containing exhaust gas is absorbed by the water absorption method. In addition, lye is also used in the production of pesticides and dyes to absorb H2S in the exhaust gas, and water to absorb HC1 and other pollutants.

The main problem with this technology is that the corrosion of the equipment needs to be solved;

2. Adsorption method: The adsorption method can be applied to purify the waste gas containing solvents or organic matter emitted from chemical production such as coatings, paints, plastics, rubber, etc., and activated carbon is usually used as an adsorbent. Activated carbon adsorption equipment is commonly used to purify the waste gas in the production of chloro23ene and carbon tetrachloride, and is also widely used in coatings, paint production, painting, and printing.

The current problem is that the regeneration technology of activated carbon is not very perfect, the treatment cost is high, and in some industries, the quality of the products is poor due to desorption, and the market is affected. Therefore, the activated carbon adsorption method is only suitable for the treatment of some high-concentration organic waste gases, and the organic matter or solvent can be reused for production, so that the treatment cost can be compensated.

3. Incineration method: organic pollutants or odorous substances in the waste gas of organic chemical production can be treated by direct combustion method or catalytic combustion method. It is required that the combustion must be complete, otherwise the intermediate products formed during the incineration process may be more dangerous than the original pollutants.

In order to complete combustion, it is necessary to have a good grasp of the three important parameters of combustion time, temperature and turbulence. Direct combustion can be done with a flare or incinerator. The flare combustion method is used to treat the exhaust gas containing sufficient combustibles, and the calorific value of the exhaust gas needs to be above 925kJ m3, and the flare is an atmospheric burner, and the combustion efficiency is low.

If a forced air supply combustion furnace is used similar to a boiler or i-industry furnace, the combustion effect is better than that of a flare. Direct combustion is usually carried out at about 1000C, and the complete combustion products are C02, N2 and water vapor.

We all know that chemical plants will produce a large amount of waste gas in the production process, Taizhou waste gas treatment equipment manufacturers, and VOC organic waste gas. Whether it is organic waste gas or inorganic waste gas, they all have one thing in common, they emit a strong chemical smell. Moreover, if these chemical waste gases are not properly treated, they will not only have a great impact on the surrounding environment, but also cause great damage to the health of chemical plant employees and surrounding residents.

Therefore, the waste gas treatment of chemical plants is imminent, but the selection of waste gas treatment equipment for chemical plants should also be carefully considered!

Taizhou Linsen Chemical Plant Waste Gas Treatment Equipment Process:

First, the acid gas absorption tower is sprayed and washed, and the chemical tail gas gas absorption device first absorbs the organic substances and acid gases in the air, and then, through the photolysis or organic waste gas incinerator, the odorous substances in the chemical waste gas can be effectively purified by photochemical degradation or incineration. The photocatalytic oxidation waste gas treatment equipment can effectively improve the odor of the plant and the surrounding air environment, with good removal efficiency and low operating costs.

How to solve the method and problem of the exhaust gas of the purification workshop of the chemical plantThe three major problems of spray paint exhaust gas need to be solved: organic components, paint mist and paint residue, viscous particulate matter, peculiar smell, paint mist and paint residue treatment methods generally include spray washing, wet paint removal slag, and filter cotton filtration dry paint removal slag, the former purification effect is compared.

Spraying exhaust gas is mainly the gas released from the process of painting and drying, which will damage the nervous system of the human body through breathing when discharged into the atmosphere. The damage plan mainly includes catalytic combustion unit (RCO), regenerative combustion unit (RTO) and low-temperature plasma.

If you are looking for waste gas treatment, I recommend finding a manufacturer with rich professional experience, because this can reduce your time and cost, and can give you a lot of suggestions on how to solve the waste gas and meet the emission standards.

At present, the state control environment is quite strict, and fines of hundreds of thousands or millions are imposed at every turn, so environmental issues are extremely important.

Personal suggestion: In this regard, I suggest you look for manufacturers in the Kunshan area, Aunason Environmental Protection Company focuses on waste gas treatment and provides one-stop solutions, you can consider it.

Exhaust gas is not only harmful to the human body, but also destroys the environment, and needs to be treated before it can be discharged and usedWanchuan environmental protection plant waste gas treatment equipmentis a good way to do it.

Industrial waste gas treatment should be able to effectively remove benzene, toluene, xylene, ethyl acetate, acetone, ethanol, acrylic acid, formaldehyde and other organic waste gases, hydrogen sulfide, sulfur dioxide, ammonia and other acid and alkali waste gas treatment generated in the factory workshop. Industrial waste gas treatment is widely used in chemical plants, electronic factories, printing plants, painting workshops, coating factories, food factories, rubber factories, paint factories, petrochemical industries and other places that produce dust, odor, smoke and dust. The principles of waste gas treatment include activated carbon adsorption method, catalytic combustion method, catalytic oxidation method, acid-base neutralization method, plasma method and other principles.

For chemical plants and foundries, how to solve the problem of waste gas treatment has become a concern for small and medium-sized production enterprises. Here, Lin Sen suggested that the activated carbon adsorption tower waste gas treatment method can be used, which is a high-efficiency, economical and practical organic waste gas purification and treatment device, an environmental protection equipment product for waste gas filtration and odor absorption, and a traditional process that is widely used in organic tail gas treatment. It is widely used in chemical, machinery, printing, rubber, furniture, electromechanical, shipbuilding, automobile and other industries.

The adsorption tower treatment is adopted, the technology is mature, the operation is stable, and the treatment effect is good. At the same time, according to the characteristics of the exhaust gas emitted in different process production, such as the temperature of the exhaust gas, whether it contains oil mist, dust and other related parameters, pretreatment devices or functional sections such as coolers and filters are built into or added in the inlet part of the exhaust gas equipment. The adsorption section is well protected to ensure that the adsorption tower operates in a high-efficiency state, with high adsorption efficiency and meets the requirements of environmental protection.

The working principle of the waste gas treatment equipment: because there is an unbalanced and unsaturated molecular gravitational force or chemical bond force on the solid surface, when the solid surface is in contact with the gas, it can attract the gas molecules, so that they can concentrate and remain on the solid surface, this phenomenon is called adsorption. Using the adsorption capacity of the solid surface, the exhaust gas is in contact with the porous solid matter on the large surface, and the pollutants in the exhaust gas are adsorbed on the solid surface, so that it is separated from the gas mixture to achieve the purpose of exhaust gas purification.

There are many types of waste gas in the factory, the odor in the workshop is from the waste gas, you can use Wanchuan environmental protection waste gas treatment equipment to deal with it, it is recommended to find a manufacturer with rich professional experience, because this can reduce your time cost, and can give you a lot of suggestions on how to solve the waste gas and meet the emission standards.

According to different waste gas components, there are different treatment processes, including water showering, water washing, filtration and dust removal, adsorption, etc.

The treatment of sewage and waste gas is timely, acid-alkali neutralization method, biological washing, biological trickling filtration method, anaerobic pool, sludge concentration pool, aerobic pool will produce ozone gas, and the biological deodorization tower will be used for sewage odor, and finally achieve discharge.

Take the exhaust gas to the exhaust gas purification plant.

Desulfurization, denitrification, dust removal, and then can be converted into useful lime and the like, do not discharge indiscriminately.

The principles of industrial waste gas treatment include activated carbon adsorption method, catalytic combustion method, catalytic oxidation method, acid-base neutralization method, biological washing, biological trickling filtration method, plasma method and other principles. The waste gas treatment tower adopts a five-fold waste gas adsorption filtration and purification system, and the industrial waste gas treatment is carefully designed to purify and filter the waste gas layer by layer, and the effect is good.

1.Complaints2.Expand the influence of public opinion

Call on the neighbors who are troubled by the problem of reform to reflect the situation together, and expand the influence of public opinion on local forums or news**.

3.Collect evidence and report

It is normal for factories to emit exhaust gases, and exhaust gases do not necessarily mean that they are harmful and polluting, so don't make a fuss when you see smoke.

The national emission standard for waste gas treatment is (Comprehensive Emission Standard for Air Pollutants GB16297-1996).

Five factors of waste gas treatment:

1. It can effectively remove benzene, toluene, xylene, ethyl acetate, acetone, butanone, ethanol, acrylic acid, formaldehyde and other organic waste gases, hydrogen sulfide, sulfur dioxide, ammonia and other acid and alkali waste gases produced in the factory workshop.

Second, it depends on how the competent department of the industry recommends. As an industry authority, the credibility of the recommendation is relatively high.

Third, it depends on the principle of waste gas treatment. At present, there are more waste gas treatment methods such as activated carbon adsorption method, high-temperature catalytic combustion, condensation method, wet ** method, biological method, etc., fourth, to see the successful cases. Most of the companies in the market will have many success stories.

Fifth, it depends on the brand. Looking at the company's reputation and effect matching, whether it has won the provincial and ministerial level environmental purification association key recommended excellent waste gas treatment company, local ** waste gas treatment high-tech environmental protection company and other titles with relatively high gold content.

What are the main common methods of chemical waste gas treatment?

1. Adsorption method.

The adsorption method is a commonly used method in the chemical waste gas treatment scheme, which is mainly used for the organic waste gas emitted by chemical production such as coatings, paints, rubber and plastics, or for the purification of organic solvents. Generally speaking, the adsorbed substances are mainly activated carbon, and activated carbon adsorption equipment is often used to purify waste gases such as carbon tetroxide and vinyl chloride, which is mainly used in printing paints and coatings and other production enterprises.

2. Absorption method.

In chemical production, the absorption method is also a high-quality chemical waste gas treatment method, which uses the appropriate absorption liquid to fully contact with the chemical waste gas, and the absorbent has a strong absorption capacity, which can strongly absorb some harmful substances in the waste gas. When the harmful substances in the exhaust gas are absorbed by the absorbent, then these harmful substances will no longer exist, so as to achieve the effect of purifying the exhaust gas.

3. Condensation method.

The condensation method is also a trustworthy chemical waste gas treatment method, which uses to increase the pressure of the exhaust gas or reduce the temperature of the exhaust gas, so that the harmful substances that can be condensed in the chemical waste gas are condensed into liquids, and then these liquids are separated from the exhaust gas.

In addition, the chemical waste gas treatment will also be incinerated by incineration, because in the production process of the chemical industry, most of the exhaust gas emitted contains a large number of organic pollutants and odorous substances. Organic matter and odorous substances can also be generated through catalytic combustion or direct combustion, so as to achieve the purpose of expelling harmful gases from the original exhaust gas.

Chemical acid gas treatment method: 1. Alcohol amine method. The alcohol amine method is a method that combines chemical reaction with physical absorption. Commonly used alcohol amines are: monoethanolamine; diethanolamine; diethyleneolamine; Triethanolamine.

Install a special exhaust gas ** device, and at the same time install monitoring equipment at the exhaust gas discharge port.

1. Treatment of combustible gas

1) The emission of combustible gas, if the emission is large, it is necessary to choose as little place as possible to prohibit fire, and have corresponding fire extinguishers, sand and water.

2) The discharge of combustible gas in the cylinder must be operated by the staff on the outlet side to prevent gas emission injury.

3) In the combustion treatment, a pressure reducing valve must be installed to control the speed of the gas, so that the gas can be discharged as slowly as possible, so that it can be completely burned in the combustion device, and the combustion method has RCO, RTO, etc.

2. Treatment of toxic gases

1) When handling toxic gases, workers must wear gas masks, gloves and other labor protection tools that are not related to the handling, and are prohibited from entering the gas treatment area.

2) Discharge of small amounts of toxic gases directly into the atmosphere, which must be discharged as far as possible with the consent of the controlled exporter and diluted to concentrations below the allowable level of the emissions.

3) Absorbents and adsorbents used in the treatment of toxic gases should only be used to ensure their effectiveness.

3. Treatment of combustible gas:

1) Powders, petroleum, petroleum and flammable substances to be attached to the valve of the container or when using the instrument shall be disassembled and the bottom shall be cleaned before gas treatment.

2) It is strictly forbidden to dispose of gases and combustible gases near the same place to prevent accidents. (3) There shall be no ignition source, no burning substances and ** substances near the gas treatment.

4. Treatment of inert gas:

1) Discharge to an appropriate place outdoors.

2) When the cylinder or machine is indoors, it can be connected to the exhaust pipe and guided to the outside to be discharged slowly.

The treatment methods of industrial waste gas include combustion method and absorption method, and the washing tower and activated carbon adsorption tower are usually used with UV photo-oxygen catalytic treatment. Kunshan Yuanhe Environmental Protection Technology Co., Ltd. is an environmental protection company integrating equipment manufacturing and engineering installation. The waste gas treatment equipment produced by the company includes acid and alkali waste gas treatment equipment, industrial dust removal equipment, industrial VOC treatment equipment and related supporting pipe valves.