Chlor-alkali industry four suggestions to promote optimization and upgrading

The “Twelfth Five-Year Plan” of the chlor-alkali industry has identified four major development goals: total control, increasing industrial concentration, energy conservation, and technological progress. At the same time, around the realization of the goal put forward four recommendations of the chlor-alkali industry restructuring, production capacity optimization and upgrading.

The four major development objectives of the chlor-alkali industry include: First, the total control objectives, namely the control of caustic soda production at 28 million tons, the average annual growth rate controlled at 7%; PVC production at 15 million tons, the average annual growth rate 8%, increase the proportion of organic chlorine products. The second is the goal of technological progress, that is, the adoption of domestic ion membrane technology, expansion of anodes and modified membrane technology, etc. are encouraged. The third is the goal of energy conservation and emission reduction, and the phase-out of common metal anode membrane technology is gradually phased out; the cleaner production program in the chlor-alkali industry is actively promoted, and the total amount of COD emissions from caustic soda and PVC is reduced by 15% by the end of the “Twelfth Five-Year Plan”. The energy consumption is reduced by 7%. The calcium carbide process uses all low-mercury catalysts for PVC production, and the industry achieves “three wastes” compliance. The fourth is the goal of industrial concentration, that is, through the merger and reorganization of enterprises, enhance the degree of industrial concentration, improve the efficiency of resource utilization, and enhance the overall competitiveness of the industry.

The plan points out that the “Twelfth Five-Year Plan” industry will also focus on the following tasks:

First, the sustainable development of the chlor-alkali industry is driven by independent innovation and technological progress. Guide enterprises to strengthen domestic production of ion membranes, dry acetylene generation technology, new dry process cement manufacturing technologies, and low-mercury catalysts in the whole industry, accelerate the study of new solid mercury catalysts and mercury-free catalysts for calcium carbide process polyvinyl chloride, and vigorously promote the use of caustic soda The development and application of advanced technologies, such as ion-exchange membrane electrolyzer oxygen cathode technology and new-type chlorine manufacturing technology, have formed a batch of core technologies and equipment with independent intellectual property rights.

The second is to optimize the layout of industrial regions and increase industrial concentration. Continue to support and encourage the development of large-scale chlor-alkali chemical projects with calcium carbide method polyvinyl chloride as the core product relying on resource advantages in the central and western regions. In the eastern region, no new calcium carbide process polyvinyl chloride (PVC) plants will be newly built, and large-scale ethylene oxychlorination plants will be encouraged to rely on the advantages of the new ethylene projects in the surrounding areas and the convenience of importing vinyl raw materials from ports.

The third is to optimize raw materials and technical routes to achieve sustainable development of the chlor-alkali industry. Promote ethylene and other petrochemical industries and chlor-alkali industry to support the development, increase the combination of new technologies such as the production of olefins from coal and natural gas as raw materials, improve the structure of chlor-alkali products, improve the process route, and realize the leap-forward development of production technology in the chlor-alkali industry. .

The fourth is to further increase the promotion of circular economy development model in the chlor-alkali industry. In accordance with relevant state regulations and management measures, we will build cogeneration, carry out direct purchase of electricity, and increase energy efficiency.

In addition, we must also focus on implementing responsible care, strengthening safety and environmental management, and promoting low-level mercury and accelerating the mercury-free process.

The chlor-alkali industry makes recommendations for this:

The state adopts effective means to strictly control new production capacity, eliminate backward production capacity, and ensure that total control is in place. It is recommended that the caustic soda and PVC projects be uniformly approved by the relevant departments of the central government directly. The environmental impact assessment, safety assessment, land use, project filing, or approval management of newly built projects are all directly managed by the relevant departments of the national government. For the projects that have been approved for construction and put into production, the requirements in the “Calkoline (Caustic Soda, PVC) Industry Access Requirements” will be strictly examined, that is, access management will be carried out for the chlor-alkali industry. At the same time, it is recommended that the eastern region stop the approval of the capacity expansion of caustic soda and polyvinyl chloride projects during the “Twelfth Five-Year Plan” period.

Establish a sound exit mechanism and eliminate backward production capacity and technology. It is recommended that the caustic soda devices that do not comply with industry energy consumption standards and cleaner production standards be eliminated in 2 to 3 years in the east and within 3 to 4 years in the western region; the backward devices that are eliminated must not be used in other places; The backward production capacity will be compensated by the amount of energy saved after the shutdown.

Formulate reasonable and effective energy regulation policies. It is recommended that the country continue to give a reasonable price policy for ion-exchange membrane caustic soda with obvious energy-saving benefits. For the newly-built enterprises and related projects that are obsolete and out of process technology and industrial policy restrictions, they should continue to adopt restrictions such as raising the differential tariff price increase standard to promote their shutdown.

Actively promote the technological progress of the chlor-alkali industry and increase the support for independent innovation. It is recommended to encourage and increase capital investment to support the popularization and application of home-made ion membranes, dry acetylene, and new dry cement manufacturing technologies, and to give policy subsidies to calcium carbide polyvinyl chloride manufacturers that use all low-calcium catalysts, and to use them in the process of calcium carbide. New solid chloride catalysts and mercury-free catalysts used in the research and development of vinyl chloride provide policy and financial support.

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