The large-scale lifting operation for the Gansu Energy Chemical Jinchang Energy project aimed at the efficient utilization of low-grade coal has been completed

Project Overview: The “High-Efficiency Utilization of Low-Rank Coal for Hydrogen Production and 500,000 Tons/Year of High-Concentration Urea-Based Compound Fertilizer Project” carried out by Gansu Nenghua Jinchang Energy Chemical Development Co., Ltd., is a key project within the coal chemical industry chain worth 10 billion yuan that will be developed jointly by Jinchang City and Gansu Nenghua Group during the 14th Five-Year Plan period. With a total investment of 2.917 billion yuan, the project is scheduled to be completed and put into operation in September 2024. Upon completion, it is expected to produce 200 million Nm3 of hydrogen per year, 300,000 tons of ammonia per year (of which 174,000 tons will be used to produce urea), 300,000 tons of urea as an intermediate product, 500,000 tons of urea-based compound fertilizer, and 22,400 tons of sulfur per year. The project is expected to generate annual sales revenue of 2.713 billion yuan and annual profits and taxes of 1.104 billion yuan. On May 17, 2023, the groundbreaking ceremony for Gansu Energy and Chemical Group’s project on efficient utilization of low-grade coal for hydrogen production and the manufacture of high-concentration urea-based compound fertilizers was held in Jinchang. On October 4, 2022, Aerospace Changzheng Chemical Engineering Co., Ltd. (referred to as “Aerospace Engineering”) won the bid for the EPC general contract for the gasification unit of the project aimed at producing hydrogen through the efficient utilization of low-grade coal, as well as the production of 500,000 tons per year of high-concentration urea-based compound fertilizers, carried out by Gansu Nenghua Jinchang Energy and Chemical Development Co., Ltd. The project uses local high-sulfur coal (the high-sulfur coal from Mine No. 1 of Shagang Coal Mine) as raw material. Aerospace coal gasification under pressure technology is employed to produce crude coal gas, which is then converted via shift reaction to hydrogen. Sulfides and carbon dioxide are removed from this gas through low-temperature methanol washing; the acidic gas coming out of the methanol washing unit is sent to a sulfur recovery unit to produce sulfur, while the purified gas from the methanol washing unit is used in PSA hydrogen production to obtain hydrogen products. To balance the hydrogen, part of the purified gas is refined through liquid nitrogen washing and nitrogen enrichment; liquid ammonia is produced via compression and low-pressure ammonia synthesis, and urea is further produced, ultimately resulting in urea-based compound fertilizers.

Main construction contents: Gasification – Pressurized coal gasification using space-type technology to produce crude syngas; the designed gas production rate is 213,051.8 m3/h, with a coal consumption of 68.8 t/h for the gasifier. Gas purification includes shift reaction, desulfurization and decarburization (low-temperature methanol washing), ammonia cryogenic units, carbon dioxide compression, and liquid nitrogen washing. 28,622.68 m3/h of purified gas is generated for use in PSA hydrogen production, while 99,728 m3/h of fresh syngas is produced for use in the ammonia synthesis plant. PSA hydrogen production generates 25,000 m3/h of hydrogen via pressure swing adsorption, which is supplied to users in the industrial park. Synthetic ammonia: Low-pressure synthetic ammonia technology is used. Including syngas compression and ammonia synthesis. Urea: The C02 stripping process is used. The urea production capacity is 300,000 tons per year, all of which is used to produce urea-based compound fertilizers. Urea-based compound fertilizer is produced by mixing ammonium monophosphate, fillers, and potassium sulfate into molten urea; using high-tower granulation technology, 500,000 tons of such compound fertilizer are manufactured annually. Sulfur recovery: Treatment of acidic gas at 7190.54 m3/h. A two-stage Claus sulfur recovery + flue gas combustion process is employed, with an annual sulfur production of 22,400 tons. Air separation is configured with 38,000 m3/h of O2. An air deep cooling and liquid oxygen internal compression process is adopted. Domestic technology for process packages and key equipment.

Gansu Nenghua Jinchang Company’s project for the efficient utilization of low-grade coal to produce hydrogen, as well as the production of 500,000 tons per year of high-concentration urea-based compound fertilizers, is a key project within the chemical industry chain worth billions of yuan that was planned together by Jinchang City and Gansu Nenghua Group during the 14th Five-Year Plan period. It serves to strengthen leading enterprises, complete the industrial chain, and foster cluster development. This project has been designated by the provincial Party committee and government as a key project during the 14th Five-Year Plan period, as well as a major construction project at the provincial level. The project is located in the Hexibao Industrial Park of the Yongchang Industrial Park in Gansu Province. With a total investment of 3.009 billion yuan, construction began in full scale in May 2023. Taking advantage of the strategic location along the coal transportation corridor in the Hexi Corridor as well as the abundant resources of low-grade coal in the surrounding area, the project will employ world-leading pressurized coal gasification technology to build production lines capable of producing 300,000 tons of synthetic ammonia, 300,000 tons of urea, 200 million cubic meters of hydrogen, and 500,000 tons of high-concentration urea-based compound fertilizers per year.

Yanshan Petrochemical’s cumulative hydrogen output exceeds 2,500 tons https://bbs.hcbbs.com/thread-5661506-1-1.html (Source: [Haichuan Chemical Forum] – Haichuan Network – Chemical Industry Forum)