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Sticking to the principle of coal to olefin

wallpapers News 2020-06-18

Not long ago, Liu Zhongmin, deputy director of Dalian Institute of Chemical Physics, Chinese Academy of Sciences, was awarded the 7th Zhou Guangzhao science technology award.

His reason for winning the prize is that he has completed the world's first industrial trial of methanol to olefins.

Methanol to olefin, also known as coal to olefin, is to use coal instead of petroleum.

First, coal is used to make methanol, then methanol is used to produce basic chemical raw material olefin.

The coal to olefin technology developed by Liu Zhongmin research group is abbreviated as DMTO.

In August 2010, Shenhua Group used DMTO technology to build 1.

8 million tons coal-based methanol to produce 600000 tons of olefins in Baotou, which was successfully put into operation for the first time, becoming the world's first methanol to olefin industrial demonstration unit.

Now, 20 sets of license contracts have been signed for DMTO technology industrial units, with a total olefin scale of 11.

26 million tons / year.

This shows that clean efficient utilization of coal is not out of the question.

However, the development industrialization of DMTO technology has a long arduous journey.

As Liu Zhongmin said: "in order to realize the technological breakthrough industrialization of DMTO, four generations of Dalian Institute of chemical industry have worked for more than 30 years.

My "post-60s" belong to the third generation, my hair is dry white.

" In the 1970s, the international community began to study the substitution of coal for oil, but there are only two things that have to start from the 1970s.

At that time, there were two oil crises in the world, oil prices rose sharply.

Affected by this, many developed countries, including the United States Japan, have launched the program of replacing oil with coal.

By the early 1980s, "methanol to olefin catalyst development" was listed as a major project of CAS, led by two researchers Chen Guoquan Liang Juan from Dalian Institute of chemical physics.

Liu Zhongmin, a graduate student of Dalian Institute of chemistry physics, began his "intimate contact" with DMTO.

The fixed bed catalyst was developed by Dalian Institute of chemical industry after numerous failures, the laboratory test was completed in 1985.

In 1995, under the leadership of researcher Cai Guangyu, Dalian Institute of chemical industry adopted the internationally initiated "new process method of producing low-carbon olefins from syngas via dimethyl ether", completed the pilot scale production of 60 tons of olefins annually, creating another "world first".

At this time, affected by the decline of global oil price the increase of newly proved reserves, the technical difficulty of coal to olefin technology, only two companies in the world have persisted: Mobil Oil United oil.

If you don't make progress, you will fall behind.

In the most difficult time, we must hold on to it.

In February 1995, after Liu Zhongmin took over the baton of DMTO, the joy of completing the pilot test soon disappeared.

The lowest price of oil per barrel is less than $10, there is no account for coal to olefins.

When they applied for the national "Ninth Five Year Plan" project, they were rejected.

If the country is not active, international cooperation will not work.

After Dalian Institute of chemical industry completed the pilot test, an American multinational company came to the door to ask for cooperation.

But at that time, no one dared to criticize such cooperation.

International cooperation is not allowed national plans are not supported.

Coal to olefins have reached the most difficult period.

As a result, Liu Zhongmin began to travel all over the country, looking for cooperative R & D Enterprises: Beijing, Gansu, Shaanxi, Sichuan Almost all the places where there might be a glimmer of hope, but none of them was agreed.

"This is the most difficult difficult stage.

" Liu Zhongmin said that in addition to looking for cooperation units to carry out industrial demonstration, they also have to continue to improve the existing technology, because there are companies doing it abroad.

"Other people's technology is improving.

If you don't make progress, you will fall behind.

Once we fall behind, we'll never make it.

" He who has a heart will live up to it.

"Life saving straw" came in 1998.

In August of this year, Lu Yongxiang, then president of the Chinese Academy of Sciences, went to Dalian Institute of chemistry physics for an investigation.

They immediately made a report to the president.

The Chinese Academy of Sciences later issued a document giving a grant of 1 million yuan.

With this 1 million yuan life-saving money, Liu Zhongmin his two legs: on the one h, they continue to look for partners, at the same time, innovate on the basis of the original technology continue to improve the process.

Under the situation of financial constraints, Liu Zhongmin led the team to continue to tackle key problems, made a major breakthrough: in 1995, the "process of producing olefins from syngas via dimethyl ether" was changed to "the process of producing olefins from syngas via methanol".

Although the principles of the two are the same, the methanol to olefin process is more mature can be done in a larger scale.

"Looking back, it was a sad time!" Liu Zhongmin was deeply saddened.

"Why can you hold on?" "Because we always feel that the general direction of coal to olefins is right, from a technical point of view, we have always been the best.

" Liu Zhongmin said, "in addition, I took over this matter from old comrades.

I can't do it without it.

Therefore, we must hold on hold on.

" "When I did a big experiment in 2004, I was almost neurotic.

If something goes wrong, there will be no chance to do it again.

" Liu Zhongmin's spring came in 2004.

This year, the international oil price rebounded, the United Oil Company of the United States held a powerful press conference in Beijing to announce the completion of the pilot test of methanol to olefins, which ignited domestic enthusiasm.

At that time, Shaanxi Province planned to carry out coal to olefin project in Yulin.

At the expert seminar held in this regard, some people suggested using foreign technology, but the technology transfer fee of hundreds of millions of US dollars is really distressing.

At this time, an old expert recommended the technology of Dalian Institute of chemistry physics.

After the Shaanxi provincial government sent personnel to inspect, they soon signed a cooperation contract with Liu Zhongmin.

Before the plant is officially built, a large-scale test of treating 50 tons of methanol in one day should be carried out.

"This is the first large-scale test in the world.

The methanol conversion unit is more than 30 meters high, which is equivalent to a small factory in terms of equipment.

" "After this is done, we will have the ability to compile a million ton process package from the beginning to the end," Liu said Shaanxi Province attached great importance to this, established Shaanxi Xinxing Coal Chemical Technology Company (later Xinxing energy science Technology Co., Ltd.), which allocated 83 million yuan of experimental funds.

In May 2004, Liu Zhongmin led the members of the research group to set up camp in Huaxian chemical plant near Xi'an, started a crucial large-scale experiment.

From the laboratory to the factory, from the sample to the product, the technical difficulty can be imagined.

But Liu Zhongmin's biggest concern is not technology, but personnel safety, production safety environmental protection safety.

"From a unitFrom more than ten people to more than 100 people in several units, from two meter high laboratory equipment to 36 meter large-scale equipment If there is a problem in one link, there will be no chance to do it again.

" "I was a little nervous at the time.

" Liu Zhongmin said, "I can't sleep soundly every night.

After a while, I'll get up look at the torch on the device.

If the torch is on, it's OK.

If it doesn't light up, something will happen.

There's a quarry near the chemical plant, there's a lot of blasting.

Sometimes, when I hear a bang in the middle of the night, I'll bounce out of bed -- I thought something was wrong with our installation! " More than 700 days nights of fear, finally ushered in an exciting moment.

In May 2006, the test was declared successful.

It can convert 75 tons of methanol every day -- less than 1 ton per day in foreign countries.

Since 2007, Liu Zhongmin led the team to Baotou to meet the more critical big test.

The large-scale test in Huaxian County attracted the attention of the national development Reform Commission.

After listening to Liu Zhongmin's report, Shenhua Group also changed its mind: Baotou coal to olefin project was converted to domestic technology.

In December 2006, Shenhua invested more than 15 billion yuan in Baotou coal to olefin project, which was approved by the national development Reform Commission.

Liu Zhongmin ushered in a more critical test: if Baotou project fails, it will not only mean that DMTO will be sentenced to death, but also affect the development of modern national coal chemical industry.

Since 2007, Liu Zhongmin has led his team to Baotou to provide services for the construction of the world's first methanol to olefin industrial demonstration plant.

Through the sincere cooperation of all parties concerned, the trial run of Baotou project was successful on August 8, 2010.

At that time, the Dalian Institute of chemistry physics, thouss of miles away, was holding a seminar on development strategy attended by all the Institute's researchers.

After receiving the short message from Liu Zhongmin, Zhang Tao, the director of the Institute, said aloud: "the meeting is suspended.

I'll tell you a good news first!" After hearing this, they all stood up applauded.

At the same time of large-scale industrialization of DMTO, Dalian Institute of chemistry physics has developed a new generation of methanol to olefins technology (DMTO - II) completed the industrial test, making China's DMTO technology continue to lead the world.

"Dmto-ii reduces methanol consumption per ton of olefins by more than 10%, makes heat utilization more reasonable, greatly reduces the raw material cost of olefin production.

" Liu Zhongmin said, "the birth of the technology has further improved the technical economic competitiveness resource utilization rate, which is of great significance to give full play to China's coal resource advantages, ease the tension of China's oil resources, develop a new coal chemical industry of coal to olefins.

" Innovation: coal must be used.

If it is not used, it will not solve the country's long-term development dem for energy, the economic social development will be controlled by others.

The clean efficient utilization of coal should pay attention to the development of new technology.

At present, the development of coal chemical industry is still subject to technology, no matter how many backward technologies are useless.

New technologies can not be developed overnight.

They need to be deployed in advance tackle key problems for a long time.

Technology development can't be done behind closed doors.

It needs to strengthen the cooperation of industry, University research.

At present, more support should be given to scientific research institutes universities, because they have more power stronger ability in technology research development.

Technology research development needs a group of technological breakthroughs, not a single flower.

A single technology route is easy to lead to repeated investment, resulting in potential risks.

The relationship between coal chemical industry petrochemical industry should not be opposite, but should complement each other develop harmoniously.


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TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years' experience in providing super high-quality chemicals and Nanomaterials. The nitride powder produced by our company has high purity, fine particle size and impurity content. Please contact us if necessary.
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