Are there still projects using Freon-based refrigeration units these days?

Reply to 1# sdhklh: According to the Montreal Convention, the use of ozone-depleting CFCs is to be phased out in stages. At the current stage, the use of chlorofluorocarbons (CFCs) such as R12, dichlorodifluoromethane, is prohibited, while hydrochlorofluorocarbons are not included in these current prohibitions; for example, R22, dichlorodifluoromethane, which is widely used, is not subject to such restrictions. So, if you want to use it, you can.

It is recommended to use lithium bromide units, as they are energy-efficient and environmentally friendly.

Reply to 4# lovelimen: The law of conservation of energy states that energy cannot be created on its own nor can it disappear; it always transforms from one form to another. The absorption refrigeration method is no exception. Absorption refrigeration can demonstrate its energy-saving advantages only when there is sufficient waste heat available; in fact, no energy is saved, but rather the waste heat is made full use of. Therefore, absorption refrigeration is “power-saving but not energy-efficient”. For most chlor-alkali plants, the low temperatures that can be achieved using absorption refrigeration are not sufficient for liquefying chlorine; however, it can be used to produce chilled water at 5 degrees Celsius, as well as for air conditioning cooling. For low-temperature refrigeration requirements, compression refrigeration remains more mature and reliable.

You’re worried, haha. There’s no need to worry – the capital conglomerates led by the United States won’t agree to it, because most of those products are manufactured by them. Even if they decide to phase them out, they will develop new alternative refrigerants (note the word ‘alternative’ here; so all that’s needed is to replace the refrigerant in the units). So you don’t have to worry; they’re not afraid at all. Why should you be worried? Besides, when that day comes, the units will have been in use for too long and will need to be replaced anyway, haha

You may refer to State Council Order No. 573, the Regulations on the Management of Ozone-Depleting Substances, which came into effect on June 1, 2010. Chapter 2 Production, Sale, and Use 　　 Article 10 Entities that produce or use ozone-depleting substances shall apply for production or use quota licenses in accordance with the provisions of these regulations. However, entities using such substances are not required to apply for a quota license in any of the following circumstances: (1) Repair entities that use ozone-depleting substances for the repair of refrigeration equipment, refrigeration systems, or fire suppression systems ； 　　 (II) The laboratory uses ozone-depleting substances in small quantities for experimental analysis ； 　　 (III) Quarantine agencies at entry and exit points that use ozone-depleting substances for quarantine purposes in order to prevent the introduction and spread of harmful organisms ； 　　 (IV) Other circumstances specified by the environmental protection authority under the State Council for which it is not necessary to apply for a quota permit. 　　 Article 11: In addition to meeting the conditions stipulated by laws and administrative regulations, entities that produce or use ozone-depleting substances shall also meet the following conditions: (1) Having a record of lawful production or use of the corresponding ozone-depleting substances ； 　　 (II) Sites, facilities, equipment for the production or use of corresponding ozone-depleting substances, and professional technical personnel ； 　　 (III) Environmental protection facilities that have passed the inspection by the environmental protection authorities ； 　　 (IV) It has a sound and comprehensive production and operation management system. 　　 The provisions of item (1) of the preceding paragraph do not apply to entities that use ozone-depleting substances for the special purposes specified in Article 6 of these regulations. 　　　 Article 12: Entities that produce or use ozone-depleting substances shall submit, in writing, an application for the production quota or usage quota for the following year to the environmental protection authority under the State Council by October 31 of each year, and provide proof materials demonstrating that they meet the conditions stipulated in Article 11 of these regulations. 　　 The environmental protection authority under the State Council determines the production or usage quotas for the following year for the applying entities, based on the total annual quotas for the production and use of ozone-depleting substances, as well as the performance of those entities in terms of production and use of such substances. The review is completed by December 20 of each year; if the requirements are met, a license for production or use for the following year is issued, which is then made public. A copy of this license is sent to the relevant departments of the State Council as well as the environmental protection authorities of the provinces, autonomous regions, and municipalities directly under the Central Government where the applying entities are located ； If the conditions are not met, the applying unit shall be notified in writing along with the reasons thereof. 　　 Article 13: A quota license for the production or use of ozone-depleting substances shall specify the following information: (1) The name, address, and legal representative or person in charge of the producing or using entity ； 　　 (II) Types, uses, and quantities of ozone-depleting substances approved for production or use ； 　　 (III) Validity period ； 　　 (IV) Issuing authority, date of issuance, and certificate number. 　　 Article 14: Where producers or users of ozone-depleting substances need to adjust their quotas, they shall apply to the environmental protection authority under the State Council for procedures to modify such quotas. 　　 The environmental protection authority under the State Council shall conduct a review in accordance with the conditions and criteria specified in Articles 11 and 12 of these regulations, and complete the review within 20 working days from the date of receiving the application. If the conditions are met, it shall adjust the quota of the applying entity and announce the decision ； If the conditions are not met, the applying unit shall be notified in writing along with the reasons thereof. 　　 Article 15: Production units of ozone-depleting substances shall not produce such substances in excess of the types, quantities, and time limits specified in the production quota license, nor shall they produce or sell them for purposes other than those specified in the production quota license. 　　 The production of ozone-depleting substances without a production quota license is prohibited. 　　 Article 16: Units that obtain and use quota licenses in accordance with the provisions of these regulations shall not use ozone-depleting substances beyond the species, purposes, quantities, and time limits specified in the quota licenses. 　　 Except for the circumstances specified in Article 10 of these Regulations where there is no need to apply for a quota permit for use, it is prohibited to use ozone-depleting substances without a quota permit for use. 　　 Article 17: Sellers of ozone-depleting substances shall complete the filing procedures in accordance with the regulations stipulated by the environmental protection authority under the State Council. 　　The environmental protection authority under the State Council shall publish a list of the registered sellers of ozone-depleting substances. 　　 Article 18: Except for imports and exports in accordance with the provisions of these regulations, the purchase and sale of ozone-depleting substances may only take place between entities that produce, sell, and use such substances in compliance with the provisions of these regulations. 　　 Article 19: Entities engaged in business activities such as the maintenance or disposal of refrigeration equipment, refrigeration systems, or fire suppression systems that contain ozone-depleting substances shall register with the local county-level people’s **environmental protection authorities. 　　 Entities that are engaged in activities such as the recovery, recycling, or destruction of ozone-depleting substances shall register with the environmental protection authorities of the province, autonomous region, or municipality directly under the Central Government where they are located. 　　 Article 20: Entities that produce or use ozone-depleting substances shall take the necessary measures in accordance with the regulations of the environmental protection authority under the State Council to prevent or reduce the leakage and emission of such substances. 　　 Units engaged in activities such as the maintenance and disposal of refrigeration equipment, refrigeration systems, or fire suppression systems that contain ozone-depleting substances shall, in accordance with the regulations set by the environmental protection authority under the State Council, recover and recycle such substances, or hand them over to units specialized in the recovery, recycling, and destruction of ozone-depleting substances for harmless disposal. 　　 Units engaged in activities such as the recovery, recycling, and destruction of ozone-depleting substances shall dispose of such substances in an environmentally sound manner in accordance with the regulations set by the environmental protection authority under the State Council, and shall not discharge them directly. 　　 Article 21: Entities engaged in activities such as the production, sales, use, recycling, reuse, and destruction of ozone-depleting substances, as well as those involved in the maintenance or disposal of refrigeration equipment, refrigeration systems, or fire suppression systems that contain such substances, shall retain the original records related to their business activities for at least 3 years, and shall submit the relevant data in accordance with the regulations set by the environmental protection authority under the State Council.

YOU ARE GREAT, HENHAO! FULIANG IS ALSO GREAT

Reply to 3# lovelimen: The cooling temperature achieved by lithium bromide sometimes does not meet the required cooling levels, but it is generally sufficient for normal use.