In the Paper Industry, the common main requirements for Waste Gas Treatment are: Odor Treatment During Preparation of Material, Cooking, Washing And Screening And Evaporation of Black Liquor, Odor Treatment for Sewage Treatment Plant and Waste Gas Treatment for Alkali Recovery Furnace And Lime Kiln, etc.

— Case —

Shandong Lihua Yilijin Refining and Chemical Co., Ltd. Crude Oil Area Vapor Recovery Project (processing gas volume: 1500m3/h)	Jiaxing Jinli Chemical Co., Ltd. Vapor Recovery project (processing gas volume: 300m3/h)

— KEWEI: KG-BLAS —

(1) The advanced treatment unit, as the core process unit of this technical product, can improve the exhaust gas treatment efficiency to over 99%, and the non-methane total hydrocarbon concentration in the exhaust gas can be stabilized below 50mg/m³ for a long time, and the odor concentration can be stabilized at 200. (dimensionless) below;

(2) Equipped with a safe and high-strength regeneration unit to ensure the regeneration efficiency of the adsorbent, ensure that the service life of the adsorbent is more than 5 years, and ensure that the exhaust gas reaches the standard stably for a long time.

(3) Equipped with a non-condensable gas reduction unit to process a small amount of non-condensable gas after regeneration. This part of the non-condensable gas can be recovered as light hydrocarbons or sent to the oxidation device for treatment, which is environmentally friendly and reduces secondary pollution.

(4) The chemical pretreatment unit and the biological treatment unit are used as auxiliary means of the products of this technology, mainly for the biochemical treatment of sulfur series, ammonia series, malodorous substances and some soluble VOCs, so as to reduce the processing load of the advanced treatment unit.

(5) This technical product solves the two major pain points in the industry that the adsorption process cannot reach the standard stably for a long time and the adsorbent is easy to fail. Similar to the traditional waste gas adsorption treatment process, our company takes the adsorption performance and service cycle of the adsorbent as the core technical points. Through the high-efficiency adsorbent adsorption and desorption combined process, the processing load of the Waste Gas Treatment system is increased to ensure the stable discharge of waste gas and meet the needs of various waste gas treatment conditions. The flexible combination of other waste gas treatment processes (eg: KG-VRU, KG-RTO, KG-RCO...) makes this technology product more widely applicable.

☞ Learn more >>

— KEWEI: KG-ZH —

(1) The chemical pretreatment section is used as an auxiliary process to reduce the waste gas treatment load of the two-stage biological treatment section and improve the removal efficiency of the waste gas treatment system;

(2) The two-stage biological treatment section adopts our mature biological trickling filtration and biological filter technology, which can effectively ensure the residence time of waste gas in the packed bed and maximize the waste gas treatment effect. The waste gas treatment process is all biochemical reactions, no secondary pollution is generated, and the waste gas is finally oxidized into CO₂, H₂O, etc.

(3) Our company has an original strain culture technology, optimizes the screening of strains that meet the actual needs, and cultivates corresponding strains according to the exhaust gas components to adsorb and degrade odor-causing substances;

(4) Our company cooperates with well-known domestic universities such as Nanjing University and Jiangnan University, and has the ability to screen, cultivate and inoculate strains, and has the necessary equipment and facilities for strain isolation, inoculation, preservation, and domestication;

(5) The exhaust emission indicators meet the requirements of VOCs≤120mg/m³, H₂S≤0.33kg/h, NH₃≤4.9kg/h, and the odor concentration is less than 500 (dimensionless).

☞ Learn more >>

— KEWEI: KG-SW —

(1) Our company has an original strain culture technology, which optimizes and selects strains that meet the actual needs, and cultivates corresponding strains according to the exhaust gas components to adsorb and degrade odor-causing substances;

(2) The two-stage biological treatment section adopts our mature biological trickling filtration and biological filter technology, which can effectively ensure the residence time of waste gas in the packed bed and maximize the waste gas treatment effect;

(3) The waste gas treatment process is all biochemical reactions, no secondary pollution is generated, and the waste gas is finally oxidized into CO₂, H₂O, etc.

(4) Our company cooperates with well-known domestic universities such as Nanjing University and Jiangnan University, and has the ability to screen, cultivate and inoculate strains, and has the necessary equipment and facilities for strain isolation, inoculation, preservation, and domestication;

(5) The tail gas emission index meets H₂S≤0.33kg/h, NH₃≤4.9kg/h, and the odor concentration is less than 500 (dimensionless).

☞ Learn more >>

— KEWEI: KG-VAU —

(1) The advanced treatment section, as the core process unit of the organic waste gas treatment device, can improve the waste gas treatment efficiency to over 99%, and the non-methane total hydrocarbon concentration in the exhaust gas can be stabilized below 50mg/m³ for a long time, and the odor concentration is stable at Below 500 (dimensionless);

(2) Equipped with a safe and high-strength regeneration system to ensure the regeneration efficiency of the adsorbent, ensure that the service life of the adsorbent is more than 5 years, and ensure that the exhaust gas reaches the standard stably for a long time.

(3) Equipped with a non-condensable gas reduction unit to process a small amount of non-condensable gas after regeneration. This part of the non-condensable gas can be recovered as light hydrocarbons or sent to the oxidation device for treatment, which is environmentally friendly and reduces secondary pollution.

(4) As an auxiliary means, the pretreatment unit is mainly used for biochemical treatment of sulfur series, ammonia series, malodorous substances and some soluble VOCs to reduce the processing load of the adsorption system.

(5) This technical product solves the two major pain points in the industry that the adsorption process cannot reach the standard stably for a long time and the adsorbent is easy to fail. Similar to the traditional waste gas adsorption treatment process, our company takes the adsorption performance and service life of the adsorbent as the core technical points. Through the high-efficiency adsorbent adsorption and desorption combined process, the treatment load of the exhaust gas treatment system is increased, the exhaust gas is guaranteed to be discharged stably up to the standard, and the needs of various exhaust gas treatment conditions are met. The flexible combination of other waste gas treatment processes (eg: KG-RTO, KG-RCO...) makes this technology product more widely applicable.

☞ Learn more >>

— KEWEI: KG-RTO —

(1) The thermal efficiency is as high as 95%, which saves more than 90% of energy compared with direct-fired incinerators;

(2) The removal rate of organic matter reaches more than 95%;

(3) The load reduction ratio of the incinerator burner can reach 1~100%;

(4) Modular design, and can be designed according to customer needs;

(5) It has six safety interlocking controls: system pressure monitoring, incinerator fan abnormal protection, combustion support fan abnormal protection, flame signal monitoring, fuel high and low pressure protection, incinerator high temperature trip protection, etc.;

(6) The system is automatically controlled, one-button start, simple operation, and can be used with man-machine interface to monitor important data;

(7) Historical records: historical records of system failures and troubleshooting, in order to facilitate the subsequent adjustment of the system, which will certainly increase the stability of the system.

☞ Learn more >>

— KEWEI: KG-RCO —

(1) No flame combustion, can be arranged in explosion-proof production occasions;

(2) Using high-efficiency RCO catalyst, the removal rate of organic matter reaches more than 95%;

(3) Medium and low temperature catalytic oxidation, lower energy consumption.

(4) The catalytic oxidation device is equipped with a temperature alarm system, and is equipped with a bypass fresh air duct to introduce air during "flying temperature";

(5) Use refractory fiber material with good thermal insulation performance and light weight for thermal insulation;

(6) The activated carbon is desorbed and regenerated by the heat exchange fresh hot air evenly entering the adsorption box to prolong the service life of the activated carbon;

(7) Multi-point temperature control points are set in the equipment, and an automatic alarm system is set at the same time.

☞ Learn more >>

— KEWEI: KG-CRTO —

(1) The thermal efficiency of the RTO process unit is as high as 95%, which saves more than 90% of energy compared with direct-fired incinerators;

(2) The removal rate of organic matter reaches more than 95%;

(3) The zeolite runner can concentrate the exhaust gas to greatly reduce the air volume of the regenerative incinerator (RTO), and increase the inlet concentration of the regenerative incinerator (RTO), saving fuel operating costs;

(4) The zeolite runner also has the advantages of low pressure loss, no adsorption loss, and few movable components;

(5) The load reduction ratio of the incinerator burner can reach 1~100%;

(6) Modular design, and can be designed according to customer needs;

(7) It has six safety interlocking controls: system pressure monitoring, incinerator fan abnormal protection, combustion support fan abnormal protection, flame signal monitoring, fuel high and low pressure protection, incinerator high temperature trip protection, etc.;

(8) System automation control, one-button start, simple operation, and can be used with man-machine interface to monitor important data;

(9) Historical records: historical records of system failures and troubleshooting, in order to facilitate the subsequent adjustment of the system, which will surely increase the stability of the system.

☞ Learn more >>

— KEWEI: KG-CCO —

(1) No flame combustion, can be arranged in explosion-proof production occasions;

(2) Using high-efficiency catalysts, the removal rate of organic matter can reach more than 95%;

(3) Medium and low temperature catalytic oxidation, lower energy consumption;

(4) The adsorption treatment unit is used as the exhaust gas concentration and concentration treatment unit, and is equipped with a catalytic oxidation unit, thereby expanding the application scope of the exhaust gas treatment device;

(5) Both catalytic and adsorption devices have temperature alarm systems, and are equipped with bypass fresh air ducts to introduce air during "flying temperature";

(6) Use refractory fiber material with good thermal insulation performance and light weight for thermal insulation;

(7) The activated carbon is desorbed and regenerated by the heat exchange fresh hot air evenly entering the adsorption box to prolong the service life of the activated carbon;

(8) Multi-point temperature control points are set in the equipment, and an automatic alarm system is set at the same time.

☞ Learn more >>

— KEWEI: KG-CPP —

FRP cover

1. The FRP cover has excellent mechanical properties and can withstand large wind and snow loads;

2. The cover plate is made of glass fiber reinforced plastic, which has strong corrosion resistance and good on-site installation;

3. The cover plate has sufficient strength and overall rigidity to meet the design requirements of the cover system;

4. Reinforcing ribs are added to the cover plate and side sealing plate to effectively increase the support strength of FRP and ensure the bearing capacity of heavy snow in winter;

5. A rectangular inspection port is provided on the cover plate to facilitate daily observation and maintenance. This method ensures the normal operation of the equipment and the daily operation of personnel, and is easy to install and disassemble.

Membrane capping

1. Membrane-covered steel frame externally reduces direct contact with sewage, which can reduce corrosion and prolong the service life of steel structure;

2. It is suitable for various span pools, and the membrane material can meet the functions of high temperature resistance, corrosion resistance, anti-static and other functions;

3. All the open parts of the structure are sealed, the transmission equipment (scraper) is left outside the cover, and the maintenance work can be carried out outside the cover. It is not limited to the limitation of the space around the tank body, and can solve the defects of built-in mud scraper, increased corrosion and inconvenient maintenance. Ensure the personal safety of staff.

Pipeline

Pipeline transportation can use stainless steel, FRP, galvanized steel pipe and other pipes, and has the following characteristics:

1. Good corrosion resistance: can resist the erosion of acid, alkali, salt and many chemical fluids.

2. Good heat resistance and frost resistance: under various temperature conditions, it still has good toughness and extremely high strength, and can be used for a long time.

3. Easy installation: flange connection, bonding and other connection methods can be used, which are flexible and changeable.

4. Low maintenance cost: The project does not need to carry out measures such as anti-rust, anti-fouling, insulation and maintenance, which can save project maintenance costs.

5. Long engineering life, safe and reliable.

☞ Learn more >>