China, Chongqing and other places have already tried to use it. The use of waste oil for aviation kerosene is a mature technology at home and abroad, and there are already

related production devices in China.

It is suggested that Japan should treat the nuclear waste water and recycle it before touting the reuse of the trench. Japan's domestic airports will introduce sustainable aviation fuel produced by local enterprises for the first time, and one of its raw materials is waste cooking oil from kitchens, which is also commonly known as "waste oil".

A resource recycling box in Shibuya, Tokyo is filled with many oil bottles brought by nearby residents, some of which are used kitchen waste

oil, and some are edible oil that has passed the shelf life. After recycling, these waste oils can be used to produce feed, industrial oil and fuel, including aviation fuel. Narita Airport will introduce sustainable aviation fuel < P > made by Japanese enterprises with waste edible oil as raw materials. Because the edible oil used in Japan mainly comes from plants, compared with the traditional aviation fuel, the new fuel is expected to reduce carbon emissions by about 81% < P >, and the impact on the environment will be greatly reduced. Japan has placed great expectations on the development of sustainable aviation fuel.

1. Japan plans to replace 11% of domestic airline fuel with sustainable aviation fuel by 2131. In order to promote popularization, in the first half of this year, related enterprises in the fields of energy and aviation in Japan have established consultation mechanisms and started cooperation. Narita Airport will introduce sustainable aviation fuel made by Japanese companies with waste edible oil as raw materials. Because the edible oil used in Japan mainly comes from plants, compared with traditional aviation fuel, the new fuel is expected to reduce carbon emissions by about 81%, and its impact on the environment will be greatly reduced.

Japan looks forward to the development of sustainable aviation fuel. It is estimated that

Japan produces about 511,111 tons of waste cooking oil every year, including households and restaurants, of which 4/5 comes from catering and food processing industries, and 1/5 comes from households. Relevant laws

prohibit the excessive discharge of waste oil into sewers, and the overall recovery rate is about 81%. Therefore, in Japan, where energy is scarce, these waste oils are also called "urban oil fields". Some people will wonder, where is all this? This is about the shame culture that has always prevailed in Japan. The carbon dioxide emissions of airplanes are much higher than those of trains and cars, and then Japan criticized airplanes mercilessly.

second, sustainable aviation fuel (SAF) is the only way that air travel can significantly help decarbonization. Sustainable aviation fuel can reduce the

carbon emissions of the industry by 34%. By 2151, SAF can play an important role in reducing carbon emissions by 34%.

(SAF) is a term used to describe advanced types of airborne biofuels used in jet aircraft.

but what is aviation fuel made of? Waste edible oil is one of the sources of producing this kind of fuel.

According to BP's website, other sources include animal fat and other vegetable oils, household solid waste and business occupations, including paper and

packaging, and even food waste.

stable fuel can be combined with up to 51% of conventional jet fuel without affecting the performance of aircraft.

because of their potential role in reducing carbon emissions in the life cycle, such fuels are increasingly used.

The carbon dioxide absorbed by plants and then converted into biomass is calculated

according to the carbon dioxide generated by the stable aviation fuel combustion during flight, and this method is used to further calculate or evaluate carbon emissions. ?

3. According to the Singapore Armed Forces Aviation Association, the output has reached 1 billion liters in 21 years, and 7 billion liters will be produced in future contracts. More than 45 airlines have tested sustainable fuels.

it should also be noted that one billion liters is not a lot. In 2119, jet aircraft needed an average of 7.5 million barrels of fuel per day, indicating that the total amount of stable aircraft fuel used by the industry was less.

but the pressure on airlines to use more of this fuel has increased.

however, the use of these fuels is hindered by the cost and availability of raw materials used to manufacture them.

in fact, the amount of waste that can be converted into sustainable aviation fuel is limited, which is the main obstacle to the widespread use of this kind of fuel. ?

cost is also the biggest challenge for sustainable aviation fuel, which will not be solved in the short term.

Therefore, it's nothing new that Japanese airports use waste cooking oil to make aviation fuel. After all, other countries have already done this

. With the high price of traditional energy, including Japan, the development of new energy in the world is accelerating. The

increasing attention to sustainable aviation fuel has also driven the price of waste edible oil in Japan to rise. According to Japanese media reports, the purchase price of waste oil has increased significantly recently, with some < P > areas doubling compared with last year, and even the phenomenon of stealing waste cooking oil at night has appeared in some catering streets. With the expansion of the sustainable aviation fuel market, the price of waste edible oil in Japan is expected to continue to rise.

fourth, Japan has accumulated rich experience in recycling and comprehensive utilization of "gutter oil" for many years, and there are many effective policies and practices. During his stay in Japan, the reporter specially investigated relevant policies and interviewed recycling factories of many recycling enterprises, and was deeply impressed by the local practice of turning waste cooking oil into treasure, helping the economy and promoting environmental protection.

Strictly speaking, there is no such thing as "waste cooking oil" in Japan, and it is more appropriate to call it "waste cooking oil". Because restaurants, enterprises and

ordinary Japanese families can't and won't directly pour waste cooking oil into sewers. ?

In Japan, according to the law, the waste edible oil produced by restaurants, food processing enterprises and other enterprises is classified as industrial waste. Enterprises cannot

discharge or sell it to criminals at will, but need to be cooled and filtered, and then put it into a special container and hand it over to a regular professional recycling company, and sign a written contract with

. If once waste cooking oil similar to waste cooking oil enters the market, in addition to severe punishment by law, the enterprise involved will < P > go bankrupt and it will be difficult to turn over.

although there are national policies and regulations at the legal level, it is still difficult to stop the waste edible oil from flowing to illegal traders.

It is natural for businessmen to pursue profits. Theoretically, disposing of waste oil in Japan is also a high-cost and low-profit business. If there is no government intervention, it is a loss-making business to recover waste oil purely by enterprises.

It is understood that Japan has put forward a "comprehensive strategy for bio-energy", which clearly gives the recycling of waste edible oil an important position to fuel bio-diesel

oil, and has formulated the policy of state support for cooperative enterprises. In addition to giving high profits to recycling enterprises, it also provides expensive equipment for some designated enterprises.