From September 15th, the management requirements for controlling the emission of by-product trifluoromethane formally came into effect

According to the news on the website of the Ministry of Ecology and Environment on September 14, the "Kigali Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer" (hereinafter referred to as the "Kigali Amendment") was issued to China yesterday (September 15, 2021).

In order to further clarify the HFC-23 performance requirements and ensure the realization of the performance goals, the relevant matters are hereby notified as follows:

1.

2.

3.

4.

5.

6.

Ecological and environmental authorities at all levels should actively supervise and assist enterprises in earnestly implementing the above regulations and earnestly do a good job in the management of HFC-23 emissions

Attached

List of HFC-23 destruction technologies approved by the Conference of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer

Gas or flue gas oxidation uses a refractory-lined combustion chamber, and uses natural gas and other auxiliary streams to heat the flue gas to work

, The typical combustion chamber temperature is greater than 1100 ℃, the residence time of the destroyed material is 1-2 seconds
.
This technology is mainly used in fluorine chemical industry

The production equipment of the manufacturing plant, as an integral part of the process flow of the factory, can be operated continuously and used to destroy the waste gas stream

By-products
.

Liquid jet incinerators are usually single-chamber incinerators with one or more waste burners into which liquid waste is injected

, Is atomized into fine droplets, and burned in the suspension
.
Tangential combustion is often used to promote turbulent mixing
.
Pass afterwards

In the quenching step, acid gas is recovered for neutralization
.
The exhaust gas is directed to the absorber and dry/wet scrubber for absorption
.

The reactor cracking utilizes a cylindrical water-cooled reactor made of graphite, and a reactor temperature

The oxyhydrogen burner system up to 2000°C
.
In this way, the equipment avoids generating a large amount of flue gas, thereby avoiding pollution

A large amount of pollutants are discharged, and it makes it possible to recover acid gas
.

The rotary kiln incinerator is a rotating cylindrical steel shell lined with refractory materials, installed on a small horizontal slope
.
Big

Most rotary kilns are equipped with afterburners to ensure complete elimination of exhaust gas.
Hydrofluorocarbons (HFCs) are usually used as

Fuel
.
Rotary kilns are often incorporated into the design of commercial incinerator facilities and can be used to destroy various wastes
.

The argon plasma arc pyrolysis process directly sprays liquid or gaseous waste with the argon plasma generated by the electric plasma torch.

Flow ("in flight") mixing
.
Argon can prevent reaction with torch components
.
Waste quickly in the reaction chamber (flight tube)

It is heated to about 3000°C and pyrolysis occurs
.
After pyrolysis, quickly perform alkali quenching until the temperature is lower than 100°C, limiting

Dioxin/furan is formed, and the exhaust gas is released after passing through the caustic scrubber
.
The technology has a high level of automation and minimal supervision

Requirements, as well as safety-related quick shutdown functions
.

The process of nitrogen plasma arc is similar to argon plasma arc except that nitrogen is the working gas
.
By DC plasma torch and water-cooled electricity

The hot plasma generated by working together will decompose ozone-depleting substances (ODS) and HFCs
.
Liquefied gas can be directly from

The pressurized storage device is fed into the reactor, and the liquid is fed into the pressure vessel first, and then with the pressure before being fed into the reactor.

The compressed air is sent to the evaporator together
.
The gas from the plasma is fed into the oxidation tube, where the ODS and HFCs are first made

Reacts with steam and decomposes into carbon monoxide (CO), hydrofluoric acid (HF) and hydrochloric acid (HCl)
.
Introduce air into the bottom of the tube to remove CO

Oxidized to carbon dioxide (CO ₂ )
.

The thermal reaction of HFCs with hydrogen and carbon dioxide results in their irreversible conversion to hydrogen halides (e.
g.
HCl and HF) and/or halogens

。Compound salt .
The destruction process is designed to produce and collect saleable by-products (HCl and HF); make the HCl,

The content of HF and CO is reduced to a minimum
.

In the superheated steam reactor, halogenated hydrocarbons decompose in the high-temperature gas phase
.
First, the halogenated hydrocarbon, steam and air are mixed

Combine and preheat to 500oC, and then send the mixed gas into a tubular reactor that is electrically heated to 850-1000oC
.
Decompose the main

HF, HCl and CO ₂ are produced through hydration
.
The exhaust gas is introduced into the scrubber cooler, where calcium hydroxide is used

The (Ca(OH) ₂ ) solution flushing quenches the exhaust gas and neutralizes the acid
.
Due to exhaust gas quenching, the dioxin/furan concentration is reduced to a minimum
.
This technology has high potential in the destruction of HFCs (including HFC-23)
.

Gas or flue gas oxidation uses a refractory-lined combustion chamber, and uses natural gas and other auxiliary streams to heat the flue gas to work

, The typical combustion chamber temperature is greater than 1100 ℃, the residence time of the destroyed material is 1-2 seconds
.
This technology is mainly used in fluorine chemical industry

The production equipment of the manufacturing plant, as an integral part of the process flow of the factory, can be operated continuously and used to destroy the waste gas stream

By-products
.

Gas or flue gas oxidation uses a refractory-lined combustion chamber, and uses natural gas and other auxiliary streams to heat the flue gas to work

, The typical combustion chamber temperature is greater than 1100 ℃, the residence time of the destroyed material is 1-2 seconds
.
This technology is mainly used in fluorine chemical industry

The production equipment of the manufacturing plant, as an integral part of the process flow of the factory, can be operated continuously and used to destroy the waste gas stream

By-products
.

Gas or flue gas oxidation uses a refractory-lined combustion chamber, and uses natural gas and other auxiliary streams to heat the flue gas to work

, The typical combustion chamber temperature is greater than 1100 ℃, the residence time of the destroyed material is 1-2 seconds
.
This technology is mainly used in fluorine chemical industry

The production equipment of the manufacturing plant, as an integral part of the process flow of the factory, can be operated continuously and used to destroy the waste gas stream

By-products
.

Liquid jet incinerators are usually single-chamber incinerators with one or more waste burners into which liquid waste is injected

, Is atomized into fine droplets, and burned in the suspension
.
Tangential combustion is often used to promote turbulent mixing
.
Pass afterwards

In the quenching step, acid gas is recovered for neutralization
.
The exhaust gas is directed to the absorber and dry/wet scrubber for absorption
.

Liquid jet incinerators are usually single-chamber incinerators with one or more waste burners into which liquid waste is injected

, Is atomized into fine droplets, and burned in the suspension
.
Tangential combustion is often used to promote turbulent mixing
.
Pass afterwards

In the quenching step, acid gas is recovered for neutralization
.
The exhaust gas is directed to the absorber and dry/wet scrubber for absorption
.

Liquid jet incinerators are usually single-chamber incinerators with one or more waste burners into which liquid waste is injected

, Is atomized into fine droplets, and burned in the suspension
.
Tangential combustion is often used to promote turbulent mixing
.
Pass afterwards

In the quenching step, acid gas is recovered for neutralization
.
The exhaust gas is directed to the absorber and dry/wet scrubber for absorption
.

The reactor cracking utilizes a cylindrical water-cooled reactor made of graphite, and a reactor temperature

The oxyhydrogen burner system up to 2000°C
.
In this way, the equipment avoids generating a large amount of flue gas, thereby avoiding pollution

A large amount of pollutants are discharged, and it makes it possible to recover acid gas
.

The reactor cracking utilizes a cylindrical water-cooled reactor made of graphite, and a reactor temperature

The oxyhydrogen burner system up to 2000°C
.
In this way, the equipment avoids generating a large amount of flue gas, thereby avoiding pollution

A large amount of pollutants are discharged, and it makes it possible to recover acid gas
.

The reactor cracking utilizes a cylindrical water-cooled reactor made of graphite, and a reactor temperature

The oxyhydrogen burner system up to 2000°C
.
In this way, the equipment avoids generating a large amount of flue gas, thereby avoiding pollution

A large amount of pollutants are discharged, and it makes it possible to recover acid gas
.

The rotary kiln incinerator is a rotating cylindrical steel shell lined with refractory materials, installed on a small horizontal slope
.
Big

Most rotary kilns are equipped with afterburners to ensure complete elimination of exhaust gas.
Hydrofluorocarbons (HFCs) are usually used as

Fuel
.
Rotary kilns are often incorporated into the design of commercial incinerator facilities and can be used to destroy various wastes
.

The rotary kiln incinerator is a rotating cylindrical steel shell lined with refractory materials, installed on a small horizontal slope
.
Big

Most rotary kilns are equipped with afterburners to ensure complete elimination of exhaust gas.
Hydrofluorocarbons (HFCs) are usually used as

Fuel
.
Rotary kilns are often incorporated into the design of commercial incinerator facilities and can be used to destroy various wastes
.

The rotary kiln incinerator is a rotating cylindrical steel shell lined with refractory materials, installed on a small horizontal slope
.
Big

Most rotary kilns are equipped with afterburners to ensure complete elimination of exhaust gas.
Hydrofluorocarbons (HFCs) are usually used as

Fuel
.
Rotary kilns are often incorporated into the design of commercial incinerator facilities and can be used to destroy various wastes
.

The argon plasma arc pyrolysis process directly sprays liquid or gaseous waste with the argon plasma generated by the electric plasma torch.

Flow ("in flight") mixing
.
Argon can prevent reaction with torch components
.
Waste quickly in the reaction chamber (flight tube)

It is heated to about 3000°C and pyrolysis occurs
.
After pyrolysis, quickly perform alkali quenching until the temperature is lower than 100°C, limiting

Dioxin/furan is formed, and the exhaust gas is released after passing through the caustic scrubber
.
The technology has a high level of automation and minimal supervision

Requirements, as well as safety-related quick shutdown functions
.

The argon plasma arc pyrolysis process directly sprays liquid or gaseous waste with the argon plasma generated by the electric plasma torch.

Flow ("in flight") mixing
.
Argon can prevent reaction with torch components
.
Waste quickly in the reaction chamber (flight tube)

It is heated to about 3000°C and pyrolysis occurs
.
After pyrolysis, quickly perform alkali quenching until the temperature is lower than 100°C, limiting

Dioxin/furan is formed, and the exhaust gas is released after passing through the caustic scrubber
.
The technology has a high level of automation and minimal supervision

Requirements, as well as safety-related quick shutdown functions
.

The argon plasma arc pyrolysis process directly sprays liquid or gaseous waste with the argon plasma generated by the electric plasma torch.

Flow ("in flight") mixing
.
Argon can prevent reaction with torch components
.
Waste quickly in the reaction chamber (flight tube)

It is heated to about 3000°C and pyrolysis occurs
.
After pyrolysis, quickly perform alkali quenching until the temperature is lower than 100°C, limiting

Dioxin/furan is formed, and the exhaust gas is released after passing through the caustic scrubber
.
The technology has a high level of automation and minimal supervision

Requirements, as well as safety-related quick shutdown functions
.

The process of nitrogen plasma arc is similar to argon plasma arc except that nitrogen is the working gas
.
By DC plasma torch and water-cooled electricity

The hot plasma generated by working together will decompose ozone-depleting substances (ODS) and HFCs
.
Liquefied gas can be directly from

The pressurized storage device is fed into the reactor, and the liquid is fed into the pressure vessel first, and then with the pressure before being fed into the reactor.

The compressed air is sent to the evaporator together
.
The gas from the plasma is fed into the oxidation tube, where the ODS and HFCs are first made

Reacts with steam and decomposes into carbon monoxide (CO), hydrofluoric acid (HF) and hydrochloric acid (HCl)
.
Introduce air into the bottom of the tube to remove CO

Oxidized to carbon dioxide (CO ₂ )
.

The process of nitrogen plasma arc is similar to argon plasma arc except that nitrogen is the working gas
.
By DC plasma torch and water-cooled electricity

The hot plasma generated by working together will decompose ozone-depleting substances (ODS) and HFCs
.
Liquefied gas can be directly from

The pressurized storage device is fed into the reactor, and the liquid is fed into the pressure vessel first, and then with the pressure before being fed into the reactor.

The compressed air is sent to the evaporator together
.
The gas from the plasma is fed into the oxidation tube, where the ODS and HFCs are first made

Reacts with steam and decomposes into carbon monoxide (CO), hydrofluoric acid (HF) and hydrochloric acid (HCl)
.
Introduce air into the bottom of the tube to remove CO

Oxidized to carbon dioxide (CO ₂ )
.

The process of nitrogen plasma arc is similar to argon plasma arc except that nitrogen is the working gas
.
By DC plasma torch and water-cooled electricity

The hot plasma generated by working together will decompose ozone-depleting substances (ODS) and HFCs
.
Liquefied gas can be directly from

The pressurized storage device is fed into the reactor, and the liquid is fed into the pressure vessel first, and then with the pressure before being fed into the reactor.

The compressed air is sent to the evaporator together
.
The gas from the plasma is fed into the oxidation tube, where the ODS and HFCs are first made

Reacts with steam and decomposes into carbon monoxide (CO), hydrofluoric acid (HF) and hydrochloric acid (HCl)
.
Introduce air into the bottom of the tube to remove CO

Oxidized to carbon dioxide (CO ₂ )
.

The thermal reaction of HFCs with hydrogen and carbon dioxide results in their irreversible conversion to hydrogen halides (e.
g.
HCl and HF) and/or halogens

。Compound salt .
The destruction process is designed to produce and collect saleable by-products (HCl and HF); make the HCl,

The content of HF and CO is reduced to a minimum
.

The thermal reaction of HFCs with hydrogen and carbon dioxide results in their irreversible conversion to hydrogen halides (e.
g.
HCl and HF) and/or halogens

。Compound salt .
The destruction process is designed to produce and collect saleable by-products (HCl and HF); make the HCl,

The content of HF and CO is reduced to a minimum
.

The thermal reaction of HFCs with hydrogen and carbon dioxide results in their irreversible conversion to hydrogen halides (e.
g.
HCl and HF) and/or halogens

。Compound salt .
The destruction process is designed to produce and collect saleable by-products (HCl and HF); make the HCl,

The content of HF and CO is reduced to a minimum
.

In the superheated steam reactor, halogenated hydrocarbons decompose in the high-temperature gas phase
.
First, the halogenated hydrocarbon, steam and air are mixed

Combine and preheat to 500oC, and then send the mixed gas into a tubular reactor that is electrically heated to 850-1000oC
.
Decompose the main

HF, HCl and CO ₂ are produced through hydration
.
The exhaust gas is introduced into the scrubber cooler, where calcium hydroxide is used

The (Ca(OH) ₂ ) solution flushing quenches the exhaust gas and neutralizes the acid
.
Due to exhaust gas quenching, the dioxin/furan concentration is reduced to a minimum
.
This technology has high potential in the destruction of HFCs (including HFC-23)
.

In the superheated steam reactor, halogenated hydrocarbons decompose in the high-temperature gas phase
.
First, the halogenated hydrocarbon, steam and air are mixed

Combine and preheat to 500oC, and then send the mixed gas into a tubular reactor that is electrically heated to 850-1000oC
.
Decompose the main

HF, HCl and CO ₂ are produced through hydration
.
The exhaust gas is introduced into the scrubber cooler, where calcium hydroxide is used

The (Ca(OH) ₂ ) solution flushing quenches the exhaust gas and neutralizes the acid
.
Due to exhaust gas quenching, the dioxin/furan concentration is reduced to a minimum
.
This technology has high potential in the destruction of HFCs (including HFC-23)
.

In the superheated steam reactor, halogenated hydrocarbons decompose in the high-temperature gas phase
.
First, the halogenated hydrocarbon, steam and air are mixed

Combine and preheat to 500oC, and then send the mixed gas into a tubular reactor that is electrically heated to 850-1000oC
.
Decompose the main

HF, HCl and CO ₂ are produced through hydration
.
The exhaust gas is introduced into the scrubber cooler, where calcium hydroxide is used

The (Ca(OH) ₂ ) solution flushing quenches the exhaust gas and neutralizes the acid
.
Due to exhaust gas quenching, the dioxin/furan concentration is reduced to a minimum
.
This technology has high potential in the destruction of HFCs (including HFC-23)
.

Note: This list is a list of HFC-23 destruction technologies approved by the 30th Conference of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer
.