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[ Focus on Chemical Machinery and Equipment Network ] The president of the China Circular Economy Association pointed out at the meeting that only 9% of the 9 billion tons of plastic products are recycled and reused.
Among them, the ocean is seriously affected.
According to statistics, the amount of plastic waste flowing into the ocean every year in 20 years will be nearly three times that of now.
Chemical machinery and equipment network hot attention to plastic products of chemical machinery and equipmentAmong them, the ocean is seriously affected.
According to statistics, the amount of plastic waste flowing into the ocean every year in 20 years will be nearly three times that of now.
In my country, the annual output of plastic is 30 million tons, the consumption exceeds 6 million tons, and the amount of plastic waste exceeds one million tons, accounting for 40% of the garbage.
However, the natural degradation time of plastic bags is more than 200 years, and the treatment of plastic pollution has thus become a melody in the treatment of solid waste in recent years.
Especially in 2020, the "Opinions on Further Strengthening the Treatment of Plastic Pollution" and the "Notice on Promoting the Control of Plastic Pollution" have continuously emphasized the importance of plastic pollution control.
About 30 provinces and cities across the country have sounded the ban.
Plastic horn.
Especially in 2020, the "Opinions on Further Strengthening the Treatment of Plastic Pollution" and the "Notice on Promoting the Control of Plastic Pollution" have continuously emphasized the importance of plastic pollution control.
About 30 provinces and cities across the country have sounded the ban.
Plastic horn.
At the same time, more and more technologies for turning plastic waste into treasure are introduced.
Recently, there are reports that American researchers have used a simple low-temperature catalytic method to convert polyethylene polymers contained in many plastics into high-value alkyl aromatic molecules, which have high efficiency, low cost, and low energy consumption.
Advantages, the obtained materials can be used as the basic raw materials for many industrial chemicals and consumer products, and can be used to manufacture solvents, paints, lubricants, detergents, medicines, etc.
Advantages, the obtained materials can be used as the basic raw materials for many industrial chemicals and consumer products, and can be used to manufacture solvents, paints, lubricants, detergents, medicines, etc.
According to relevant personnel, plastics are composed of carbon-carbon and carbon-hydrogen bonds, which are difficult to chemically recover.
This method does not require the addition of solvents or hydrogen, and only platinum on the alumina catalyst can be used for tandem reactions.
This reaction breaks The tough carbon-carbon bond rearranges the molecular "skeleton" of the polymer.
This method does not require the addition of solvents or hydrogen, and only platinum on the alumina catalyst can be used for tandem reactions.
This reaction breaks The tough carbon-carbon bond rearranges the molecular "skeleton" of the polymer.
At the end of 2018, we set off for the Ocean Cleanup project to the "Great Pacific Garbage Belt".
The first batch of garbage was towed back to shore at the end of 2019.
Not only nine years ago, news came that the Ocean Cleanup Project would sell products made from recycled plastic waste.
The first batch of garbage was towed back to shore at the end of 2019.
Not only nine years ago, news came that the Ocean Cleanup Project would sell products made from recycled plastic waste.
According to the data, the plastic waste collected during the entire mission has now been sorted, cleaned and compounded into certified high-quality plastic for use in the manufacture of sunglasses frames.
These frames are equipped with polarized lenses and stainless steel hinges.
The glasses are also equipped with a box made of recycled parts of a garbage collection system and a small bag made of recycled PET bottles.
These frames are equipped with polarized lenses and stainless steel hinges.
The glasses are also equipped with a box made of recycled parts of a garbage collection system and a small bag made of recycled PET bottles.
The organization estimates that for every pair of sunglasses sold, a garbage field equivalent to 24 football fields can be cleared.
Another thing to note is that a research group at Nanjing Normal University has proposed a method for polyacids to induce high-efficiency degradation of waste polyester plastics.
The obtained POMOFs can efficiently catalyze cyclic carbonate compounds (precursors of polycarbonate plastics).
) To realize the effective reuse of waste plastics.
The method is based on the plastic hydrolysis of polyoxometallates (POMs).
POMs simultaneously undertake the two functions of hydrolysis and providing construction primitives, realizing the transformation from one type of waste plastic to another new type of plastic.
The obtained POMOFs can efficiently catalyze cyclic carbonate compounds (precursors of polycarbonate plastics).
) To realize the effective reuse of waste plastics.
The method is based on the plastic hydrolysis of polyoxometallates (POMs).
POMs simultaneously undertake the two functions of hydrolysis and providing construction primitives, realizing the transformation from one type of waste plastic to another new type of plastic.
In addition, there is research to convert plastic waste into fuel.
A scientific research team successfully developed a new production process in 2019 that can convert ordinary types of plastics into fuels similar to gasoline or diesel.
The conversion process uses supercritical water.
The water is heated to between 716 and 932 degrees Fahrenheit, and then the plastic is added to the mixture.
The purified polypropylene will turn into oil in less than 1 hour.
The conversion process uses supercritical water.
The water is heated to between 716 and 932 degrees Fahrenheit, and then the plastic is added to the mixture.
The purified polypropylene will turn into oil in less than 1 hour.
In China, some companies have also developed equipment for high-efficiency conversion of waste plastics into energy, which can process industrial waste plastics, mixed waste plastics from paper mills, medical waste plastics, various agricultural mulch films, and other waste plastics with no granulation value.
After cracking, catalysis, harmless treatment and other processes, 100% is converted into standard base oil, combustible gas, carbon powder and other renewable energy products.
After cracking, catalysis, harmless treatment and other processes, 100% is converted into standard base oil, combustible gas, carbon powder and other renewable energy products.
Original title: Can plastic waste be used as fuel? The dilemma of 9% being recycled will be solved
