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On July 13, Donghua Energy issued an announcement that in order to comply with the market trend of rapid development of new material products in the downstream of the company's industrial chain, the high-value use of propylene and by-product hydrogen produced by Donghua Energy (Maoming) alkane resource comprehensive utilization project will be consolidated.
Project name: Donghua Energy (Maoming) Acrylonitrile Project;
The main body of project implementation: Donghua Energy (Maoming) Co.
, Ltd.
(the company's holding subsidiary), the specific project implementation main body is ultimately determined according to the actual situation;
Project construction site: Green Chemical Industry and Hydrogen Energy Industrial Park, Maoming Binhai New Area, Guangdong;
Project construction scale and content:
.
Project construction period: about 2 years;
Project investment plan: The total investment of two sets of 260,000 tons/year acrylonitrile plants is about 935 million US dollars (equivalent to 6.
546 billion yuan), including equipment purchase costs, main material costs, installation costs, construction engineering costs and other costs
.
This process technology uses propylene, ammonia, air and water as raw materials, and enters the ebullated bed or fixed bed reactor according to a certain proportion.
Under the action of antimony iron catalyst, acrylonitrile is generated at 400-500 ° C and normal pressure
.
Then, the unreacted ammonia is removed with dilute sulfuric acid in the neutralization tower, and the acrylonitrile and other gases are absorbed by water in the absorption tower to form an aqueous solution
.
The aqueous solution is separated from acetonitrile in an extraction tower, and hydrocyanic acid is removed in a dehydrocyanic acid tower.
After dehydration and rectification, acrylonitrile is obtained.
The yield per pass can reach 75%.
The by-products are acetonitrile, hydrocyanic acid and ammonium sulfate
.
In order to strengthen the comprehensive utilization of hydrogen energy, a combination of Market demand, the company plans to build acrylonitrile plant
.
The implementation of the acrylonitrile project has better combined the company's existing production advantages and industrial layout, seeking breakthroughs and main support in the field of hydrogen application, forming a whole industry chain, laying the foundation for the company's industrial upgrading and continuous profitability enhancement, in line with the company's The concept of developing new materials and fine chemicals is in line with the country's industrial development policy of vigorously developing new technologies, new materials, adjusting structure, and maintaining growth
.
It is an important production and export base of petroleum products in China.
It is known as the "Southern Oil City".
It has abundant terminal resources and is convenient for importing overseas cheap propane resources.
And it is also very convenient to export by sea
.
The company will use overseas cheap propane resources to produce propylene and by-produce hydrogen through propane dehydrogenation technology, and rely on the raw materials provided by Maoming Phase I, supporting public works and auxiliary facilities to produce acrylonitrile with propylene and hydrogen as raw materials, saving energy.
Investment, reduce production costs and enhance product competitiveness
.
