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Sinochem News News On November 23, the official website of the Ministry of Ecology and Environment released the "Recommended List of Alternatives to Hydrochlorofluorocarbons in China (Draft for Comment)" (hereinafter referred to as the "List"), recommending monochlorodifluoromethane (HCFC) -22), 1,1-dichloro-1-fluoroethane (HCFC-141b), 1-chloro-1,1-difluoroethane (HCFC-142b), the three main domestic production and use of HCFCs 24 a substitute, substitute 6 wherein the blowing agent, including carbon dioxide, pentane, water, hexafluorobutene, trifluoropropene, tetrafluoropropene
.
The relevant person in charge of the Ministry of Ecology and Environment stated that there are currently two main types of HCFCs alternatives: First, hydrofluorocarbons (HFCs) with high global warming potential (GWP), which have been widely used in developed countries for many years, and have achieved large-scale domestic products.
Scale industrialization
.
The second is low GWP substitutes, including natural working fluids, fluorinated olefins (HFO) and other substances
Meng Qingjun, deputy secretary general of the China Plastics Processing Industry Association, said in an interview with a reporter from China Chemical Industry News that the "List" recommends replacing HCFCs with carbon dioxide as a blowing agent for extruded polystyrene foam and polyurethane spray foam, which is both environmentally friendly and economical and will show A better application prospect
.
In the next step, the association will actively cooperate with the Ministry of Ecology and Environment to strengthen the promotion of related alternative foaming agents to ensure the continuous performance of the polyurethane and polystyrene foam industries
Xiang Minghua, general manager of Shaoxing Huachuang Polyurethane Co.
, Ltd.
, said that the replacement of HCFCs with carbon dioxide as a foaming agent for polyurethane spray foam was shortlisted in the "List", which will bring new development opportunities to the company
.
The company will increase the promotion of carbon dioxide foam spraying technology and equipment to provide safe, environmentally friendly, cost-effective solutions for the industry
Sun Yu, chairman of Jiangsu Meister Chemical Co.
, Ltd.
, said that the "Fourteenth Five-Year Development Guidelines for China's Polyurethane Industry" proposed that the polyurethane industry should increase the development and application of functional, green, safe and environmentally friendly additives.
Actively promote the replacement of foaming agent ODS
.
As the lead unit in charge of the development and application of polyurethane additives composite technology in China, Messed is helping to realize the replacement of low-GWP foaming agent and promote the low-carbon environmental protection of the industry through the innovation and upgrading of polyurethane surfactants (foam stabilizers) and catalysts
At present, China is carrying out the phasing out of hydrochlorofluorocarbons (HCFCs) in accordance with the requirements of the protocol
.
According to the resolution of the 19th Conference of the Parties to the Protocol, China needs to freeze the production and consumption of HCFCs at the baseline level in 2013, and reduce the baseline level by 10%, 35%, and 67.
