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NPC deputy and chairman of Shandong Binhua Group, Zhang Zhong, has been working in Binhua for a full 40 years. In 40 years, he witnessed the development of a small chlor-alkali plant as a large-scale integrated chemical enterprise group integrating petrochemicals, fine chemicals, chlor-alkali, thermoelectricity, and port storage. It also accumulated a wealth of energy and chemical companies. experience. He said that at present, chemical companies can only sustain themselves by adopting new techniques, new technologies, and new equipment to arm themselves and take the road of a circular economy to minimize energy, resource consumption, and pollution emissions.
Zhang Zhongzheng said that enterprises should be the main body of energy conservation and emission reduction. Especially in the chemical industry, at the beginning of reform and opening up, companies only pursued the goal of maximizing profits, talking about corporate responsibilities, and dedication of taxes to the country. They did not recognize the social responsibility of energy saving and emission reduction. With the continuous development and progress of society, realizing the maximization of energy and resource utilization efficiency and realizing the maximization of harmony with the environment have become the goals that companies should pay attention to. The development of an economy cannot be done at the expense of massive consumption of resources and the destruction of the environment. On the other hand, at present, the prices of energy and resources have risen sharply, and the state has adopted some economic control measures for the discharge of pollutants. Therefore, reducing the consumption of energy and resources and reducing the emission of pollutants have become an important way for companies to reduce production costs. At the same time, a large number of chemical companies that were previously built in the suburbs are already within the city's interior or periphery with the development of the city, placing higher demands on the energy conservation and emission reduction of chemical companies.
Then, how can we maximize the efficiency of energy and resource use while minimizing the generation of pollutants? Zhang Zhongzheng said that all kinds of resources, raw materials, and waste must be recycled within the company to maximize the “netting of foodâ€.
Zhang Zhongzheng believes that the development of circular economy is to optimize the selection of upstream and downstream products for each device, so that the waste of the previous production cycle becomes the raw material for the next production link, and realizes the comprehensive utilization of clean production and resources. For example, in a chlor-alkali enterprise, the generated hydrogen chloride is generally absorbed as hydrochloric acid and sold as a by-product. If refined as a raw material of a vinyl chloride plant, it can save a lot of chlorine and obtain significant economic and environmental benefits; the production of vinyl chloride plants The waste stone mud treatment is also a major problem that plagues the development of the industry. Through constant exploration, the Binhua Group introduced it into the saponification process of the propylene oxide plant, replacing the saponifier lime, which can reduce the consumption of large amounts of lime; the recovered saponification residue is pressed After filtration, cooling, and other processes, it can be mixed with fly ash produced by thermoelectric devices and processed into bricks for sale. In this way, all "scraps" have become "products," and companies have achieved significant economic benefits while achieving zero emissions of solid waste. In addition, recycling of waste water, waste gas recycling, and development of cogeneration are all important ways for chemical companies to develop circular economy.
Constantly updating technical equipment is the fundamental to achieving energy-saving emission reduction and developing a recycling economy. Zhang Zhongzheng proposed that projects and processes in enterprises should continue to pay attention to the environmental protection of the devices by continuing to recycle the upstream and downstream product support and by-product waste materials of each device, while continuing the advancement of the previous technological equipment and the rationality of the process support. Safe and energy-saving, intensify efforts to eliminate backward devices. For example, there is still 44% of the country's caustic soda production capacity is diaphragm base, and the comprehensive energy consumption of ion-exchange membrane base is only half the diaphragm base, if they are all changed to ion-exchange membrane base, the total energy consumption of China's chlor-alkali industry will be greatly reduced. At the same time, the improvement of labor quality is also the key. If the quality of personnel cannot keep up, even the best equipment will not play a good role. In addition, an advanced management system and strict rules and regulations are also important guarantees for enterprises to maximize the role of “circulationâ€.
Material tube can be lifted. It is easy to clean stub bar. It is easy to fix die.
Chemical companies want to recycle resources
- Interview with Zhang Zhongzheng, deputy to the National People's Congress and chairman of Shandong Binhua Group