The domestic polyvinyl chloride (PVC) industry, which is dominated by the calcium carbide process, is facing an internal and external environment with severe excess production capacity, continued declining oil prices and weak downstream demand, and is under tremendous environmental pressure. Strict industry access, strengthened mercury pollution prevention and control, implementation of a low mercury catalyst manufacturer announcement system, enhanced technological innovation, and promotion of upstream and downstream linkages have become four major measures for the industry to achieve green development. This was learned by the China Chemical Industry News from the 2014 National PVC Technology Conference held in Fuzhou on December 11 and the China PVC Green Development Forum.
According to the relevant person in charge of China Chlor-Alkali Industry Association, in recent years, the state has issued a series of standards and specifications for the safety, environmental protection, energy consumption, mercury pollution prevention and control of the chlor-alkali industry, and proposed new constraints. The scope of application of the chlor-alkali industry access conditions, which was revamped by the Ministry of Industry and Information Technology and the Ministry of Finance, expands the scope of application, covering PVC, caustic soda, methane chloride and PVC paste resins. The access conditions are also more stringent, and the requirements for enterprise distribution, energy consumption, technological equipment scale, environmental protection, safety, and occupational health are all improved. It is reported that the "access conditions" have been revised and submitted to the Ministry of Industry and Information, which is expected to be released in the first half of next year.
At the same time, China's Petroleum and Chemical Industry Federation and the chlor-alkali association jointly established a low-mercury catalyst manufacturer announcement system. The company has started to apply. The companies that have passed the audit will make announcements to promote the full application of low mercury catalysts in 2015.
Participants stated that industrial policies not only set new requirements for the increase of the PVC industry, but also increased the requirements for the stock portion. The drop in the price of oil caused the price of foreign PVC to decline, which affected the export of the company. Coupled with multiple pressures such as the low operating rate of enterprises and the weak demand in the downstream consumer market, companies were compelled to implement structural adjustment and transformation and upgrading.
Therefore, experts recommend that PVC enterprises should pay attention to technological advancement on the one hand, and continue to track and advance the research and industrialization applications of hot technology in the industry, such as focusing on the catalytic reforming of ethylene dichloride and acetylene to produce vinyl chloride technology, and catalytic hydrogen chloride oxidation technology, The development of localized ion membrane application technology, saline oxygen cathode electrolysis technology, and PVC synthesis free mercury catalyst technology; on the other hand, it is necessary to strengthen the linkage with the downstream and actively expand the downstream applications.
It is understood that the chlor-alkali association set up a PVC market application and development professional committee last month to systematically develop downstream applications from various aspects such as policy acquisition, image building, technical research, and standards revision. Many companies such as Xinjiang Zhongtai Chemical, Xinjiang Tianye Group, Hebei Shenghua Chemicals, Yibin Tianyuan Group, etc. are actively communicating with plastic product processing associations and product companies.
According to the statistics of the association, in the first three quarters, domestic PVC increased its production capacity by 400,000 tons, and withdrawn 210,000 tons, a net increase of 190,000 tons, a year-on-year increase of 0.77%, far below the annual average of 18% in 2000-2012 and 5.8 in 2013. %. At present, the PVC production of 94 PVC production enterprises in the first three quarters was 12.04 million tons, a year-on-year increase of 9.1%. Due to the overcapacity, coupled with the fact that the share of PVC products in the traditional downstream areas such as plastic pipes, profiles, and doors and windows has not grown significantly, the PVC industry has been losing money for the third consecutive year this year, causing difficulties in business operations, tight cash flow, inventory and The collections have all increased and the industry's performance is worrying.
Concentrate on solving problems
Xu Rongyi, Honorary Chairman of China Chlor-Alkali Industry Association: Realizing the transformation of China from a large chlor-alkali country to a strong country has great pressure on the industry, because the gap between China and chloro-alkali countries is still very large. If the company is still losing money after five years, it will be difficult for the company to survive. How to become a powerful country? The current internal and external environment is very unfavorable to us. In order to reverse the industry situation, the business concept of the enterprise must be changed. It is necessary to do a good job with the downstream processing companies and scientific research institutes, and to exert their enthusiasm in all aspects to open up the downstream applications. It is also necessary to solve the mercury catalyst problem as soon as possible, otherwise it will put us to death. Jiang Jingfa's new process is a good route to achieve mercury-free, and the success rate of industrialization is high, which should arouse the concern of enterprises. The development of the industry faces many problems. As long as we put everyone's strength together, the difficulties will be solved.
Energy Saving and Emission Reduction Are Still Major Challenges for the Calcium Carbide Law
Zhang Xinli, party secretary of Xinjiang Tianye Group and leader of PVC technology expert group: After deducting the carbon emissions from the limestone firing process that was successfully reduced by calcium carbide slag cement technology, the current total carbon dioxide emissions from 1 ton calcium carbide process PVC still reaches about 6.5 tons, which is obviously high. Ethylene PVC. As energy-saving and emission-reduction costs increase, the ability of calcium carbide method PVC to transfer downstream costs is limited, and its competitive advantage is restrained.
The large scale and automation of closed carbide furnaces are the development direction. 80,000 kVA sealed calcium carbide furnaces have been put into production, and more powerful sealed calcium carbide furnaces are under construction. However, the solution to the problem of inventory capacity still depends on innovation. At present, research institutes have developed a new process for the production of calcium carbide. By using powdery coal resources and lime powder, the electricity consumption of calcium carbide can be reduced by 20%, and pollutant emissions can be greatly reduced. If the application is successful, it will greatly promote the energy conservation and emission reduction of the calcium carbide industry, and will be a boon to the development of calcium carbide process PVC.
The world's PVC industry has undergone several major adjustments and integrations. Currently, the industries that remain in this industry are those with core strengths such as scale, cost, technology, and market. After this time, China's PVC industry has undergone deep adjustments. Some enterprises with advantages in resources, technology, and integration will further develop and grow. Others will rely on their unique technology and product advantages to survive. A considerable number of companies will be eliminated.
Heavy-duty, lightweight technology creates a passive situation
Li Bo, chief engineer of Xinjiang Zhongtai Chemical Co., Ltd.: The current PVC business has faced great challenges in its survival and development. It appears that it is overcapacity, but its essence is the vicious competition in the homogenization of industrial chain products. Therefore, how to enhance the technological innovation capability of the entire industry is the key to the healthy development of the industry.
The development of domestic PVC manufacturers is quite fast and very dry. In order to seize opportunities, speed up progress, and pursue profits, manufacturers often adopt more mature technologies in project construction, rarely introduce new process technologies, and lack independent breakthroughs in new technologies. Some companies have even adopted The factory occupies low-cost mineral resources, so its new installation is basically a repetitive construction. The application and research and development of new technologies require a large amount of human, financial and time experience. Most production companies are unwilling and unable to carry out continuous research and development work. Therefore, although the PVC industry started earlier than PP, PE and other polymer materials, but the overall industry technology level has not been greatly improved, scientific research lags behind, the level is low, resulting in a large gap between domestic PVC product quality and developed countries, forming a domestic The overcapacity of the production capacity and the still need to import PVC powder are in an embarrassing situation.
At present, all companies should start from the upstream and downstream combined with the establishment of industrial alliances, the development of PVC special materials, the production of diverse specialty PVC resin, respond to market application needs, and other aspects to improve the technical level and product quality.
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