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GB 37822-2019: Standard for fugitive emission of volatile organic compounds
GB 37822-2019
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.040.40
Z 60
Standard for Fugitive Emission of Volatile Organic
Compounds
ISSUED ON: MAY 24, 2019
IMPLEMENTED ON: JULY 01, 2019
Issued by: Ministry of Ecology and Environment;
State Administration for Market Regulation.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 7
4 Implementation Scope and Time ... 10
5 Fugitive Emission Control requirements for VOCs Material Storage ... 10
6 Fugitive Emission Control requirements for VOCs Material Transferring and
Transportation ... 12
7 VOCs Fugitive Emission Control Requirements in the Technology Process
... 13
8 Control Requirements for Equipment and Pipeline Components VOCs
Leakage ... 16
9 Control Requirements for Open Liquid Surface VOCs Fugitive Emission ... 20
10 Requirements for the Exhaust Gas Collection and Treatment System of
VOCs Fugitive Emission ... 21
11 Requirements for Pollution Monitoring in and around the Enterprise Plant
... 23
12 Pollutant Monitoring Requirements ... 24
13 Implementation and Supervision ... 25
Appendix A (Informative) Monitoring Requirements for VOCs Fugitive Emission
in the Plant ... 26
Standard for Fugitive Emission of Volatile Organic
Compounds
1 Scope
This Standard specifies the fugitive emission control requirements for VOCs-
containing materials storage; the fugitive emission control requirements for VOCs-
containing materials transferring and transportation; the VOCs fugitive emission
control requirements in the technology process; the control requirements for
equipment and pipeline components VOCs leakage; control requirements for open
liquid surface VOCs fugitive emission; as well as the requirements for the exhaust gas
collection and treatment system of VOCs fugitive emissions; and the requirements for
pollution monitoring in and around the enterprise plant.
This Standard is applicable to the management of VOCs fugitive emission of existing
enterprises or VOCs fugitive emission of production facilities; the environmental impact
assessment, design of environmental protection facilities, environmental protection
acceptance of completion, and review of pollution emission permits for the construction
projects involving VOCs fugitive emission; as well as the management of VOCs fugitive
emission after the project is put into production.
The industry pollutant emission standards issued by the state have stipulated the
VOCs fugitive emission control; and they shall be implemented in accordance with the
industry pollutant emission standards.
If, due to the safety factors or special process requirements, the requirements for the
VOCs fugitive emission specified in this Standard cannot be met, other equivalent
pollution control measures may be taken and report to the local ecological environment
authority or be implemented in accordance with the relevant requirements of the
pollutant emission permit.
2 Normative References
This Standard quoted the following documents or some clauses in them. For the
undated documents, only the latest version is applicable to this Standard.
GB 16297 Comprehensive Emission Standard of Air Pollutants
GB/T 8017 Standard Test Method for Vapor Pressure of Petroleum Products (Reid
3 Terms and Definitions
For the purpose of this Standard, the following terms and definitions apply.
3.1 Volatile organic compounds (VOCs)
Organic compounds that participate in atmospheric photochemical reactions, or
organic compounds determined in accordance with relevant provisions.
When characterizing the overall emissions of VOCs, according to industry
characteristics and environmental management requirements, total volatile organic
compounds (expressed in TVOC) and non-methane hydrocarbons (expressed in
NMHC) may be used as pollutant control items.
3.2 Total volatile organic compounds (TVOC)
Use the prescribed monitoring method to measure the individual VOCs in the exhaust
gas; sum them together to obtain the total amount of VOCs; it shall be calculated by
the mass concentration of the individual VOCs. In actual work, the individual VOCs
that account for more than 90% of the total amount shall be measured and summed
according to the expected analysis results.
3.3 Non-methane hydrocarbons (NMHC)
Use the prescribed monitoring method, the total amount of gaseous organic
compounds other than methane that the hydrogen flame ionization detector responds
are measured by the mass concentration of carbon.
3.4 Fugitive emission
Air pollutants are emitted randomly without passing through the exhaust tube, including
the escape of open workplaces, and the emission through gaps, vents, open doors
and windows, and similar openings (holes), etc.
3.5 Closed/close
The state or operating method of the pollutant that does not come into contact with the
ambient air, or is isolated from the ambient air through sealing materials and sealing
equipment.
3.6 Closed space
A closed area or closed building formed by a complete enclosure structure to block the
pollutants, workplaces, etc. from the surrounding space. In this closed area or closed
building, except for the entry and exit of personnel, vehicles, equipment, and materials,
as well as exhaust pipes and vents established by law, doors, windows, and other
the primary seal, and the upper seal is called the secondary seal.
3.13 Vapor balancing system
A gas communication and balancing system installed between the loading facility and
the storage tank or between the storage tanks.
3.14 Leakage detection value
Use the prescribed monitoring method, the net value of the VOCs concentration of the
leak points of the equipment and pipeline components detected by the testing
instrument after deducting the environmental background value, which is expressed in
mole fraction of carbon.
3.15 Open recirculating cooling water system
A circulating cooling water system in which circulating cooling water directly contacts
the atmosphere to dissipate heat.
3.16 Existing facility
Industrial enterprises or production facilities that have been completed and put into
operation before the implementation of this Standard, or whose environmental impact
assessment documents have been approved or filed.
3.17 New facility
Since the date of implementation of this standard, the environmental impact
assessment documents have been approved or filed for new, rebuilt and expanded
industrial construction projects.
3.18 Key regions
In accordance with the requirements of environmental protection work, regions that
have serious air pollution, fragile ecological environment, or need for further
environmental air quality improvement, and require strict control of air pollutant
emission.
3.19 Stack height
The height from the ground where the exhaust tube (or its main building structure) is
located to the exhaust tube outlet, in m.
3.20 Enterprise boundary
The legal boundary of an enterprise or production facility. If it is difficult to determine
the legal boundary, it refers to the actual land occupation boundary of the enterprise
or production facility.
used between the floating roof and the tank wall. For outer floating roof tanks,
double seals shall be used between the floating roof and the tank wall; and the
prime seal shall adopt high-efficiency sealing methods such as liquid-mounted
seal and mechanical shoe seal, etc.
b) Use fixed roof tanks, the emitted exhaust gas shall be collected, treated and meet
the requirements of the relevant industry emission standards (the requirements
of GB 16297 shall be met if there is no industry emission standard), or the
treatment efficiency shall be no less than 80%.
c) Adopt a gas balancing system.
d) Adopt other equivalent measures.
5.2.2 Special control requirements for storage tanks
5.2.2.1 For the storage tanks that store the volatile organic liquid with true vapor
pressure ≥ 76.6 kPa, low-pressure tanks, pressure tanks or other equivalent measures
shall be adopted.
5.2.2.2 For the storage tanks that store the volatile organic liquids with true vapor
pressure ≥27.6 kPa but < 76.6 kPa and tank volume ≥75 m3, as well as the storage
tanks that store the volatile organic liquid with true vapor pressure ≥5.2 kPa but < 27.6
kPa and tank volume ≥150 m3, they shall meet one of the following requirements:
a) Use floating roof tanks. For inner floating roof tanks, high-efficiency sealing
methods such as liquid-mounted seal and mechanical shoe seal, etc. shall be
used between the floating roof and the tank wall. For outer floating roof tanks,
double seals shall be used between the floating roof and the tank wall; and the
prime seal shall adopt high-efficiency sealing methods such as liquid-mounted
seal and mechanical shoe seal, etc. shall be adopted.
b) Use fixed roof tanks, the emitted exhaust gas shall be collected, treated, and
meet the requirements of relevant industry emission standards (the requirements
of GB 16297 shall be met if there is no industry emission standard), or the
treatment efficiency shall be no less than 90%.
c) Adopt a gas balancing system.
d) Adopt other equivalent measures.
5.2.3 Requirements for operation and maintenance of the storage tank
5.2.3.1 Floating roof tank
a) The body of the floating roof tank shall be kept intact without any holes or gaps.
The edge seal of the floating roof shall not be damaged.
shall be used.
6.1.2 The powdery and granular VOCs materials shall be transported by pneumatic
conveying equipment, tubular belt conveyors, screw conveyors, and other closed
methods; or shall be transferred by sealed packaging bags, containers or tankers.
6.1.3 When loading volatile organic liquids, it shall meet the requirements of 6.2.
6.2 Loading of volatile organic liquids
6.2.1 Loading method
Volatile organic liquids shall be loaded at the bottom; if top immersion loading is used,
the height from the discharge nozzle to the bottom of the groove (tank) shall be less
than 200 mm.
6.2.2 Loading control requirements
If loading the materials with true vapor pressure ≥27.6 kPa and the annual loading
capacity of a single loading facility ≥500 m3, the loading process shall meet one of the
following requirements:
a) The emitted exhaust gas shall be collected, treated and meet the requirements
of relevant industry emission standards (if there is no industry emission standard,
the requirements of GB 16297 shall be met), or the treatment efficiency shall be
no less than 80%;
b) The emitted exhaust gas is connected to the gas balancing system.
6.2.3 Special control requirements for loading
If loading the materials with true vapor pressure ≥27.6 kPa and the annual loading
capacity of a single loading facility ≥500 m3, as well as loading the materials with true
vapor pressure ≥5.2 kPa but < 27.6 kPa and the annual loading capacity of a single
loading facility ≥2500 m3, the loading process shall meet one of the following
requirements:
a) The emitted exhaust gas shall be collected, treated and meet the requirements
of relevant industry emission standards (if there is no industry emission standard,
the requirements of GB 16297 shall be met), or the treatment efficiency should
not be less than 90%;
b) The emitted exhaust gas is connected to the gas balancing system.
7 VOCs Fugitive Emission Control Requirements in the
and treatment system. If airtight equipment is not used, it shall be operated in a
closed space; or local gas collection shall be carried out; and the exhaust gas
should be discharged to the VOCs exhaust gas collection and treatment system.
c) The exhaust gas discharged from the operation of the units such as absorption,
washing, distillation/rectification, extraction, and crystallization ones, and the
non-condensable tail gas discharged from the operation of the condensation unit,
as well as the desorption tail gas from the operation of the adsorption unit shall
be discharged to the VOCs exhaust gas collection and treatment system.
d) The mother liquor of VOCs after separation and refining shall be sealed to collect;
and the exhaust gas generated in the mother liquor storage groove (tank) shall
be discharged to the VOCs exhaust gas collection and treatment system.
7.1.4 Vacuum system
The vacuum system shall use a drying vacuum pump; and the vacuum exhaust gas
shall be discharged to the VOCs exhaust gas collection and treatment system. If using
the liquid ring (water ring) vacuum pumps, water (steam) jet vacuum pumps, etc., the
circulating groove (tank) of the working medium shall be sealed; and the vacuum
exhaust gas and circulating groove (tank) exhaust gas shall be discharged to the VOCs
exhaust gas collection and treatment system.
7.1.5 Ingredient processing and packaging of VOCs-containing products
Ingredients processing processes, such as mixing, stirring, grinding, granulating,
slicing, briquetting of VOCs material, as well as the packaging (filling, sub-packing)
process of VOCs-containing products shall be operated in airtight equipment or in a
closed space; and the exhaust gas shall be discharged to VOCs exhaust gas collection
and treatment system. If it cannot be sealed, local gas collection measures shall be
taken, and the exhaust gas shall be discharged to the VOCs exhaust gas collection
and treatment system.
7.2 The use process of VOCs-containing products
7.2.1 For VOCs-containing products with a mass percentage of VOCs greater than or
equal to 10%, the use process shall adopt airtight equipment or operate in a closed
space; and the exhaust gas should be discharged to the VOCs exhaust gas collection
and treatment system. If it cannot be closed, local gas collection measures shall be
taken; the exhaust gas shall be discharged to the VOCs exhaust gas collection and
treatment system. The use process of VOCs-containing products includes but is not
limited to the following operations:
a) Blending (mixing, stirring, etc.);
b...