Year1
With the increase in global crude oil prices, the price of plastic products, one of the petroleum derivatives, has naturally increased. The recycling of waste plastics has also been mentioned in a primary position. Recycling plastics for reuse has been widely adopted by modern chemical companies. After manual screening and classification, waste plastics undergo processes such as crushing, granulation, modification, etc. to become various transparent and opaque plastic particles, which are then classified according to their appearance and finally become recycled materials that can be reused.
, Fuel
Initially, plastic recycling mostly used landfill or incineration methods, resulting in huge waste of resources. Therefore, in foreign countries, waste plastics are used in blast furnace injection to replace coal, oil and coke, used in cement rotary kilns to replace coal to burn cement, and made into waste solid fuel (R) for power generation, with ideal results. R technology was originally developed in the United States. In recent years, Japan has used the high calorific value of waste plastics to mix various combustible wastes in view of the shortage of landfills, serious corrosion of boilers when incinerators process chlorine-containing waste plastics, and the production of dioxins during combustion to pollute the environment. Even if the chlorine is diluted by R with uniform calorific value and particle size, it is easy to store, transport and be used as a substitute for coal in other boilers and industrial kilns. Blast furnace injection waste plastic technology is also a new method of treating waste plastics that uses the high calorific value of waste plastics to make waste plastics as raw materials into suitable particle sizes and spray them into the blast furnace to replace coke or pulverized coal. The application of waste plastic injection in foreign blast furnaces shows that the utilization rate of waste plastics reaches %, the emissions are .%-.% of the incineration volume, and the harmful gases produced are less and the treatment costs are lower. Blast furnace injection waste plastic technology opens up a new way for the comprehensive utilization and control of "white pollution" of waste plastics, and also provides a new means for metallurgical enterprises to save energy and increase efficiency. Germany and Japan have had successful applications since this year.
, Power generation
Waste-to-solid fuel power generation was first used in the United States and has accounted for R.% of waste-to-energy power stations. Japan has realized the huge potential of generating electricity from waste plastics. Japan's combined overhaul has changed some small waste incineration stations into R production stations to facilitate centralized and continuous high-efficiency large-scale power generation, which has improved the steam parameters of the waste power station from about 1% to %-%.
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