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HJ 2027-2013: Technical specifications of catalytic combustion method for industrial organic emissions treatment project
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Basic data

Standard ID: HJ 2027-2013 (HJ2027-2013)
Description (Translated English): Technical specifications of catalytic combustion method for industrial organic emissions treatment project
Sector / Industry: Environmental Protection Industry Standard
Classification of Chinese Standard: Z25
Classification of International Standard: 13.040.40
Word Count Estimation: 13,146
Quoted Standard: GB 12348; GB/T 16157; GB 50016; GB 50019; GB 50051; GB 50057; GB 50058; GB 50140; GB 50160; GB 50187; GBJ 87; HGJ 229; HJ/T 1; HJ/T 389-2007; HJ 2000; JJF 1049; " construction Project Environmental Protection design requirements, " 1987; " construction Pr
Regulation (derived from): ?Ministry of Environmental Protection Announcement 2013 No. 18
Issuing agency(ies): Ministry of Ecology and Environment
Summary: This standard specifies the industrial catalytic combustion of organic waste treatment project design, construction, technical requirements for acceptance and operation. This standard applies to the catalytic combustion of industrial organic waste treatme

HJ 2027-2013: Technical specifications of catalytic combustion method for industrial organic emissions treatment project


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Technical specifications of catalytic combustion method for industrial organic emissions treatment project HJ National Environmental Protection Standard of the People's Republic Technical Specifications for Industrial Organic Waste Gas Treatment Engineering by Catalytic Combustion Technical specifications of catalytic combustion method for industrial organic emissions Treatment project Published on.2013–3–29 2013-7-1 implementation Ministry of Environmental Protection released

Content

Preface II 1 Scope 1 2 Normative references 1 3 Terms and Definitions.1 4 Contaminants and pollution loads.3 5 General requirements 3 6 Process Design 4 7 main process equipment..6 8 Detection and Process Control 7 9 Major auxiliary projects..7 10 Engineering Construction and Acceptance..7 11 Operation and maintenance 8

Foreword

To implement the "Environmental Protection Law of the People's Republic of China" and the "Law of the People's Republic of China on the Prevention and Control of Air Pollution" The construction of the project, prevention and control of industrial organic waste gas pollution, improvement of environmental quality, the development of this standard. This standard specifies the technical requirements for the design, construction, acceptance and operation of industrial organic waste gas catalytic combustion treatment engineering. This standard is a guidance document. This standard is the first release. This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection. This standard is mainly drafted by. China Environmental Protection Industry Association, Chinese People's Liberation Army Institute of Chemical Defense, Chinese Academy of Sciences Ecological Environment Research Research Center, Beijing Lvhuang Environmental Protection Equipment Co., Ltd., China Energy Saving Tianchen (Beijing) Environmental Protection Technology Co., Ltd., Beijing Odvina Environmental Protection Festival Energy Technology Co., Ltd., Jiayuan Environmental Protection Co., Ltd., Kemaike (Hangzhou) Environmental Protection Equipment Co., Ltd. This standard was approved by the Ministry of Environmental Protection on March 29,.2013. This standard has been implemented since July 1,.2013. This standard is explained by the Ministry of Environmental Protection. Technical Specifications for Industrial Organic Waste Gas Treatment Engineering by Catalytic Combustion

1 Scope of application

This standard specifies the technical requirements for the design, construction, acceptance and operation of industrial organic waste gas catalytic combustion treatment engineering. This standard is applicable to the catalytic combustion treatment of industrial organic waste gas, and can be used as environmental impact assessment, engineering consulting, design, construction, The technical basis for operation and management after acceptance and completion.

2 Normative references

The contents of this standard refer to the terms in the following documents. For undated references, the valid version applies to this standard. GB 12348 industrial enterprise boundary noise standard GB/T 16157 Determination of particulate matter in fixed pollution source exhaust gas and sampling method of gaseous pollutants GB 50016 Building Design Fire Code GB 50019 Heating, Ventilation and Air Conditioning Design Code GB 50051 exhaust pipe design specification GB 50057 lightning protection design code for buildings GB 50058 Specification for design of electrical installations for explosion and fire hazard environments GB 50140 Building Fire Extinguisher Configuration Design Specification GB 50160 Petrochemical Enterprise Design Fire Protection Code GB 50187 General Plan for Design of Industrial Enterprises GB J 87 Industrial Enterprise Noise Control Design Specification HGJ 229 Industrial equipment, pipeline anti-corrosion engineering construction and acceptance specifications HJ/T 1 gas parameter measurement and sampling fixed position device HJ/T 389-2007 Industrial Organic Waste Gas Catalytic Purification Device HJ .2000 Technical Guidelines for Air Pollution Control Engineering JJF 1049 temperature sensor dynamic response calibration "Design Regulations for Environmental Protection of Construction Projects" National Planning Commission, State Council Environmental Protection Committee [1987] No. 002 Regulations on Environmental Protection Management of Construction Projects, State Council of the People's Republic of China [1998] No. 253 “Measures for Completion and Acceptance of Construction Projects (Engineering)” National Planning Commission.1990 “Administrative Measures for Environmental Protection Acceptance of Completion of Construction Projects” State Environmental Protection Administration Order [2002] No. 13

3 Terms and definitions

The following terms and definitions apply to this standard. 3.1 Industrial organic emissions Refers to gaseous pollutants containing volatile organic compounds emitted by industrial processes. 3.2 Explosion limit explosive limit Also known as the explosive concentration limit. The concentration range in which a combustible gas or vapor can be exploded after mixing with air is called the explosion limit. 3.3 Lower explosive limit lower explosive limit Refers to the lowest concentration value of the explosion limit. 3.4 oxidation catalyst Refers to a catalyst that catalyzes the oxidation of organic compounds by catalysis. 3.5 heat storage heat regenerator Refers to a structure that contains a relatively porous hole, utilizes the structure and specific surface area of the hole, and combines the material of the material itself to achieve heat storage and exchange function. Inorganic non-metallic solid materials. 3.6 Catalyst poisoning catalyst poisoning Refers to the phenomenon that the catalytic activity of the catalyst is degraded or lost due to the action of certain substances. 3.7 Catalytic burner catalytic oxidizer Refers to the use of solid catalysts to convert pollutants in the exhaust gas into compounds such as carbon dioxide and water through oxidation, and to purify pollutants in the exhaust gas. Equipment and its ancillary facilities. Catalytic combustion devices typically consist of a catalytic reaction chamber, a heat exchange chamber, and a heating chamber. 3.8 Conventional catalytic combustion device Refers to a catalytic combustion device that uses a gas-gas heat exchanger for indirect heat exchange. 3.9 regenerative catalytic oxidizer (RCO) Refers to a catalytic combustion device that uses a regenerative heat exchanger for direct heat exchange, referred to as RCO. 3.10 ignition temperature Refers to the temperature at the inlet of the catalytic reactor when the conversion rate of a certain pollutant reaches 50%. 3.11 self-sustained combustion Refers to the heat generated by the catalytic combustion of organic matter in the exhaust gas to maintain the reaction temperature of the catalyst bed, or the temperature of the exhaust gas itself. The light-off temperature of the catalyst has been reached or exceeded without the need for a catalytic combustion process to preheat the exhaust gases. 3.12 space velocity Refers to the volumetric flow rate of exhaust gas per unit volume of catalyst treated per unit time, called space velocity, referred to as space velocity. The unit is. m3/(h·m3), Abbreviated as h-1. 3.13 Purification efficiency Refers to the ratio of the amount of contaminant captured by the purification equipment to the amount of contaminant before treatment, expressed as a percentage. Calculated as follows. 2211 ×−= Sn Snsn QC QCQCη (1) In the formula. Η--purification efficiency of purification equipment,%; C1, C2 - concentration of pollutants at the inlet and outlet of the purification equipment, mg/m3; Qsn1, Qsn2 - dry gas flow rate at the inlet and outlet of the purification equipment, m3/h.

4 Contaminants and pollution loads

4.1 Catalytic combustion method is suitable for the treatment of gaseous and aerosol pollutants. 4.2 The concentration of organic matter in the exhaust gas entering the catalytic combustion unit shall be less than 25% of the lower limit of its explosion limit. When the concentration of organic matter in the exhaust gas is higher than When 25% of the lower limit of the explosion limit is reached, it should be reduced to 25% of the lower limit of its explosion limit by a pretreatment process such as gas dilution and dilution. Combustion treatment. 4.3 For exhaust gases containing mixed organic compounds, the controlled concentration P should be less than 25% of the lower limit of the explosive limit of the most explosive component or mixture. That is, P< min(Pe, Pm)×25%, Pe is the lower limit of the explosive limit of the most explosive component (%), and Pm is the lower limit of the explosive limit of the mixed gas. Calculate according to the following formula. Pm=(P1 P2 Pn)/(V1/P1 V2/P2 Vn/Pn) (2) In the formula. Pm -- lower limit of explosive limit of mixed gas, %; P1, P2,, Pn - the lower limit of the explosion limit of each component in the mixed organic waste gas, %; V1, V2,, Vn - the volume percentage of each component in the mixed organic waste gas, %; n -- The number of organic compounds contained in the mixed organic waste gas. 4.4 The concentration, flow rate and temperature of the exhaust gas entering the catalytic combustion device should be stable, and large fluctuations should not occur. 4.5 The concentration of particulate matter in the exhaust gas entering the catalytic combustion unit should be less than 10 mg/m3. 4.6 Exhaust gases entering the catalytic combustion unit must not contain substances that cause catalyst poisoning. 4.7 The temperature of the exhaust gas entering the catalytic combustion unit should be lower than 400 °C.

5 General requirements

5.1 General provisions 5.1.1 The governance project shall meet the requirements of the Environmental Protection Design Regulations for Construction Projects and the Environmental Protection Management Regulations for Construction Projects. 5.1.2 The governance project should follow the principles of comprehensive management, recycling, emission standards, and total amount control. Governance process design should be mature Relying on advanced technology and economical application principles, and considering energy saving, safety, and easy operation, the main process flow is determined. 5.1.3 The treatment project should be compatible with the production process level, and the production enterprise should manage the treatment equipment as part of the production system. The equipment should operate in synchronism with the corresponding production equipment that produces the exhaust. 5.1.4 The discharged pollutants after treatment shall comply with the national or local relevant air pollutant discharge standards. 5.1.5 The treatment and discharge of waste gas, waste water, waste residue and other pollutants generated during the construction and operation of the treatment project shall be implemented in the country. Or local environmental protection regulations and standards to prevent secondary pollution. 5.1.6 Governance engineering shall install online continuous monitoring equipment in accordance with the requirements of relevant national laws and regulations. 5.2 Engineering composition 5.2.1 The governance project consists of the main project and the auxiliary project. 5.2.2 Main works usually include exhaust gas collection, pretreatment and catalytic combustion units. If secondary pollutants are produced during the treatment process, they should also include Secondary pollutant treatment facilities. 5.2.3 Auxiliary works include inspection and process control, electrical instrumentation and water supply and drainage. 5.3 Site selection and general layout 5.3.1 Site selection and general layout should be carried out in accordance with the provisions of the standard GB 50187. 5.3.2 Site selection should follow the principles of convenient construction, operation and maintenance, and leave fire exits and safety protection distances in accordance with fire protection requirements. 5.3.3 The arrangement of the treatment equipment should consider the influence of the dominant wind direction to reduce the environmental impact of harmful gases and noise. 5.3.4 Catalytic combustion equipment should be kept away from the storage place of flammable and explosive hazardous chemicals, and the safety distance should meet the national or relevant industry standards.

6 Process design

6.1 General requirements 6.1.1 The treatment capacity of the treatment project should be determined according to the treatment volume of the exhaust gas, and the design air volume should be designed according to 120% of the maximum exhaust gas emissions. 6.1.2 The purification efficiency of the catalytic combustion device shall not be less than 97%. 6.1.3 The design of the exhaust pipe should meet the requirements of GB 50051. 6.2 Selection of process routes 6.2.1 The process route should be selected based on comprehensive analysis of the source, properties (temperature, pressure, composition) and flow rate of the exhaust gas. 6.2.2 According to the different heating methods of exhaust gas, the catalytic combustion process can be divided into the conventional catalytic combustion process (see Figure 1) and the thermal storage catalytic combustion. Process (see Figure 2). Figure 1 Conventional catalytic combustion process Figure 2 Regenerative catalytic combustion process 6.2.3 The heat balance calculation should be performed when selecting the catalytic combustion process. When the organic matter contained in the exhaust gas is burned, the heat generated can be dimensionally When the catalyst bed is self-sustained, the conventional catalytic combustion process should be adopted; when the organic matter contained in the exhaust gas is burned, the heat generated cannot be When the catalyst bed self-sustaining combustion is maintained, a regenerative catalytic combustion process is preferably employed. 6.3 Process design requirements 6.3.1 Exhaust gas collection 6.3.1.1 The design of the exhaust gas collection system shall comply with the provisions of GB 50019. 6.3.1.2 Exhaust gas should be coordinated with the production process and should not affect the process operation. Under the premise of ensuring the collection ability, the structure should be simplified. Single, easy to install and maintain management. 6.3.1.3 When determining the position, structure and gas flow rate of the suction port of the collector hood, the hood shall be in a state of micro-negative pressure and the negative pressure inside the hood shall be uniform. 6.3.1.4 The suction direction of the gas collecting hood should be as consistent as possible with the direction of the moving airflow to prevent the airflow around the suction hood from being disordered, avoiding or reducing The influence of weak interference airflow and air supply airflow on the intake airflow. 6.3.1.5 When there are many exhaust gas generation points and they are far away from each other, multiple collection systems should be appropriately divided. 6.3.2 Pretreatment 6.3.2.1 The pretreatment equipment shall be selected according to the composition, nature and content of the pollutants. 6.3.2.2 When the content of particulate matter in the exhaust gas before entering the catalytic combustion device is higher than 10 mg/m3, it shall be pretreated by filtration or the like. 6.3.2.3 A differential pressure gauge shall be installed at both ends of the filter device. When the resistance of the filter exceeds the specified value, the filter material shall be cleaned or replaced in time. 6.3.2.4 When the concentration of organic matter in the exhaust gas is high, it should be adjusted to meet the requirements of 4.1 by dilution. 6.3.3 Catalytic combustion 6.3.3.1 The working temperature of the catalyst should be lower than 700 ° C, and can withstand high temperature impact of 900 ° C for a short time. Catalyst life under design conditions The life should be greater than 8500h. 6.3.3.2 The service life of the thermal storage body in the regenerative catalytic combustion device under design conditions shall be greater than 24000 h. Combustion chamber I Combustion chamber II 6.3.3.3 The design space velocity of the catalytic combustion device should be greater than 10000h-1, but should not be higher than 40,000h-1. 6.3.3.4 The temperature of the gas entering the combustion chamber shall reach the light-off temperature of the gas component on the catalyst, and the mixed gas shall have the highest light-off temperature. The composition is determined. 6.3.3.5 The pressure loss of the catalytic combustion unit shall be less than 2 kPa. 6.3.3.6 The high temperature flue gas generated after treatment should be recycled. 6.4 Secondary pollution control 6.4.1 Waste water from waste gas pretreatment should be treated centrally and discharged after meeting the corresponding discharge standards. 6.4.2 The dust and waste residue from pretreatment and the replacement of the filter material and catalyst shall be treated in accordance with the National Solid Waste Treatment and Disposal Office. Relevant regulations. 6.4.3 When secondary pollutants are generated after catalytic combustion, they should be treated by absorption and other methods to achieve standard discharge. 6.4.4 Noise control shall meet the requirements of GB J 87 and GB 12348. 6.5 Security measures 6.5.1 The treatment system shall have an automatic alarm device for accidents and comply with the relevant provisions on safety production and accident prevention. 6.5.2 The pipe system between the treatment system and the main production device shall be equipped with a flame arrester (fire damper). The performance of the flame arrester shall be in accordance with HJ/T Inspection is carried out in accordance with 5.4 of 389-2007. 6.5.3 Fans, motors and electrical instruments placed on site shall not be lower than the explosion-proof rating of the site. 6.5.4 The concentration dilution facility should be set up before the exhaust fan. When the reactor outlet temperature reaches 600 ° C, the control system should be able to alarm and automatically open The waste flushing facility dilutes the exhaust gas. 6.5.5 The catalytic combustion device shall have an overheat protection function. 6.5.6 The catalytic combustion device shall be insulated as a whole, and the external surface temperature shall not be higher than 60 °C. 6.5.7 The explosion-proof pressure relief design of the piping system and catalytic combustion equipment shall comply with the requirements of GB 50160. 6.5.8 The treatment equipment shall have short-circuit protection and grounding protection function, and the grounding resistance shall be less than 4Ω. 6.5.9 Fire-fighting facilities should be installed near the catalytic combustion unit. 6.5.10 The outdoor catalytic combustion device shall be installed with lightning protection devices in accordance with GB 50057.

7 main process equipment

7.1 The performance of the main process equipment shall meet the requirements of 6.3 of this standard and be backed up as necessary. 7.2 The basic performance of the catalytic combustion uni......
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