The development direction of coal as raw material for coal chemical industry

It has effectively expanded the consumption and utilization space of coal.

Coal as a raw material should be developed to high-end products, continue to extend the industrial chain, and develop high performance

Can the product.

Special attention is paid to the coupling of "coal → coke → hydrogen energy + special materials".

High quality development should be manifested in:

(1) Production of high value-added, scarce, difficult to produce oil and natural gas products. For example:

Clean fuel (gas, liquid), high calorific value fuel (aviation kerosene), cold resistant fuel (military

Products), high-grade carbon-containing materials (battery negative carbon materials), etc.;

(2) High conversion rate, low energy consumption, low emissions (pollutants);

(3) CO2 centralized treatment and utilization, and CO2 concentration in the tail gas generated by the coal chemical process

The concentration of CO2 in the tail gas produced by coal power plants is much higher, which is easy to purify.

(4) Raw coal solves worries for the high-quality development of the coal industry, such as high-sulfur coal

Raw materials, low rank coal with high humic acid as soil amendment, etc.

High quality development should be manifested in:

(1) Production of high value-added, scarce, difficult to produce oil and natural gas products. For example:

Clean fuel (gas, liquid), high calorific value fuel (aviation kerosene), cold resistant fuel (military

Products), high-grade carbon-containing materials (battery negative carbon materials), etc.;

(2) High conversion rate, low energy consumption, low emissions (pollutants);

(3) CO2 centralized treatment and utilization, and CO2 concentration in the tail gas generated by the coal chemical process

The concentration of CO2 in the tail gas produced by coal power plants is much higher, which is easy to purify.

(4) Raw coal solves worries for the high-quality development of the coal industry, such as high-sulfur coal

Raw materials, low rank coal with high humic acid as soil amendment, etc.

1.7 Coal chemical industry is the guarantee for the diversification of clean energy supply in China

China has a large population and a complete range of industrial categories, which requires clean fuel oil and chemicals

They are all different, so we not only have to make our energy supply secure, we also have to make it special

Security of supply of energy and chemicals. Coal chemical products provide us with more choices.

For example: oil (polymethoxy-dimethyl ether) in cold and anoxic environment; Aerospace special

Special oil products; High clean oil products (indirect liquefied oil products contain almost no sulfur); And of course

Many chemicals with special functions.

Second, the status quo and problems of coal used in coal chemical industry in China

2.1 The characteristic and difficulty of coal chemical technology is that the coal quality is right

Any coal-related project, coal quality is the key to the success of the project, the benefit is good or bad

Quality is the right way, management is the right way."

The basic condition for the success of coal chemical project is that the coal quality must be right, generally speaking,

coal

"Coalification" is to effectively and economically "transform" coal, which is a technical engineering of coal workers

Characteristics and difficulties.

As far as the current situation is concerned, most coal chemical projects in China attach great importance to the research and evaluation of coal quality.

Basically can achieve the "coal quality"

The author has published an article "Standardization is the long-term healthy development of China's coal chemical industry.

Guarantee.

2.2 Common problems of coal used in coal chemical industry

The main problems of the wrong way are as follows:

① The understanding of the fusibility of coal ash is not clear, there is a vague understanding, and there is a fantasy about the flux;

(2) There is also a phenomenon of "setting the furnace type and then collecting coal";

(3) Research and evaluation of long-term stability of coal quality are not in place;

(4) There are no good countermeasures for special types of coal such as high potassium and sodium;

(5) There are misunderstandings about the content of coal tar that can be extracted;

⑥ The economy of lignite gasification is blindly optimistic.

The economic research of raw coal is insufficient, for example: the real coal price of lignite is not low, Changzhi

The coal price of lean coal and lean coal in the region is higher.

Third, the matching of coal quality and gasification technology

3.1 The matching of gasification technology and coal quality is the key to the selection of coal chemical technology:

(1) The reliability of long-term stable operation of the gasifier system; (Technology maturity)

(2) Long-term production safety (system safety level)

(3) Environmental protection of long-term production

(4) Long-term production efficiency (economy)

(5) Adaptability of coal quality and post-processing adaptability (applicability)

(6) Long-term stability of raw coal quality

The evaluation of these six key problems can judge whether the gasification technology is correct or not.