In 2022, 7 major projects of Jinhua Furnace 3.0 will be completed and put into operation one after another
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For the synthetic ammonia production project at Zhejiang Jinju Chemical, the gasification furnace is not equipped with a backup unit; the gasification pressure is 6.5 MPaG, and the total gas flow rate is 94,000 Nm3/h (CO + H2). The annual output of ammonia is 300,000 tons, while the Jinhua furnace generates approximately 54 tons/h of saturated steam at a pressure of 7.05 MPaG as a by-product. It is expected to be completed and put into operation in August 2022. Jinju Company has implemented technological upgrades related to raw material sourcing for ammonia synthesis, as well as energy-saving and emission-reduction measures. New production facilities have been built, including a Jinhua Furnace 3.0 system for water-coal slurry gasification, shift reaction, methanol washing, liquid nitrogen washing, and a three-bed radial Cassali ammonia synthesis unit, along with various auxiliary facilities; these facilities enable an annual production capacity of 350,000 tons of ammonia. Of this, 250,000 to 200,000 tons per year is liquid ammonia, and 100,000 to 150,000 tons per year is purified methanol. Eliminate the existing fixed-bed gasification and ammonia synthesis systems.
The tar hydrogenation project of Changjin Yuan Coking Co., Ltd., part of Shanxi Nanyao Group, utilizes Jinhua Furnace 3.0 technology, with no backup system in place. The vaporization pressure is 6.5 MPaG; each furnace produces 70,000 Nm3/h of useful gas (CO + H2). The waste boiler of the Jinhua furnace generates 32 t/h of saturated steam at 7.0 MPaG, which is used directly for power generation. Production is scheduled to begin in May 2022. Upon completion of the project, the company will have a production capacity of 1.3 million tons per year of coking (nominal), 400,000 tons per year of acetic acid (nominal), 100 million Nm3 per year of hydrogen energy (nominal), and 200,000 tons per year of coal tar hydrogenation (nominal). This will further optimize the product portfolio and improve energy efficiency. Additionally, measures such as reducing coal usage and cutting total pollutant emissions in half will be taken to minimize pollution discharge in the region, thereby achieving optimal economic, social, and environmental benefits.
The 350,000 tons per year ammonia synthesis project as part of the relocation and renovation project of Jiangsu Debang Xinghua Chemical Co., Ltd., was constructed through a joint investment by Air Products (AP) and Debang Xinghua Chemical Technology Co., Ltd. The gasification pressure is 6.5 MpaG, with a total gas flow rate of 110,000 Nm3/h (CO+H2); operation is scheduled to begin in October 2022. The project is located in the Xuwei New Area of Lianyungang City, Jiangsu Province. Jiangsu Debang Xinghua Chemical Technology Co., Ltd. is affiliated with Jiangsu Debang Chemical Industry Group Co., Ltd. This project was jointly invested in and built by Air Products Corporation and Jiangsu Debang Xinghua Chemical Technology Co., Ltd.; Air Products Corporation holds 80% of the shares while the Debang Group holds 20%. Together, they own and operate air separation units as well as gasification and purification facilities.
The gasification energy-saving technology upgrade project of Chongqing Xiangyu Salt Chemical Co., Ltd. involves the upgrade of the atmospheric pressure fixed-bed gasification units; there are two such gasifiers, with one as a backup unit. The gasification pressure is 6.5 MPaG, and the total gas output is 80,000 Nm3/h (CO + H2). The Jinhua type gasifiers produce saturated steam at a pressure of 10.0 MPaG, in an amount of about 50 tons per hour; the annual production capacity for synthetic ammonia is 300,000 tons. Production is scheduled to begin in October 2022. The gasification energy-saving technology upgrade project of Chongqing Xiangyu Salt Chemical Co., Ltd. is located at plot B10-05/04 in the Longbao Tuantuan IV management unit of Chongqing Wanzhou Salt and Gas Chemical Park (an open area to the south of the company’s existing factory). An investment of 1.5 billion yuan will be used to upgrade the existing gasification facilities in that open area to the south of the current factory premises. The newly acquired land for the project covers an area of 122,000 m2; the existing vacant space within the factory complex is utilized for 15,030 m2, while the land used for buildings and structures amounts to 54,820 m2 ； An additional area will be created on the south side of the existing plant, where new units for coal grinding and slurry preparation, gasification, shift reaction, low-temperature methanol washing, liquid nitrogen washing, ammonia synthesis, and sulfur recovery will be built. An air separation unit will be installed using the existing plant facilities, and as a result of these upgrades, the total annual production capacity of synthetic ammonia will increase from 200,000 tons to 300,000 tons per year.
The synthesis gas transformation project of Zibo Qilu No.1 Fertilizer Co., Ltd., which is part of the Lu’an Group, involves an upgrade of the atmospheric pressure fixed-bed gasification system. This project uses two gasification furnaces, with one operating while the other serves as a backup; the gasification pressure is 4.0 MPaG, and the total gas output is 45,000 Nm3/h (CO + H2). Additionally, 48 t/h of steam at 4.5 MPaG is produced as a by-product. Production is scheduled to begin in November 2022. The technical renovation project for the 45,000 Nm3/h syngas plant at Zibo Qilu No.1 Fertilizer Co., Ltd., Yangmei Group, is located within the premises of Qilu No.1 Fertilizer Factory in Linzi District, Zibo City, Shandong Province. The proposed project uses coal as raw material, replacing the existing fixed-bed batch gas production process with pressurized gasification of coal slurry, and substituting the current wet desulfurization and PSA carbon removal processes with low-temperature methanol washing for purification. For the recovery of acidic gases, the existing batch sulfur melting process is replaced by a wet acid production method. Additionally, two 85t/h boilers that burn mixed waste materials are to be converted into circulating fluidized bed coal boilers, along with corresponding modifications to the dust removal, desulfurization, and denitrification equipment; one 6MW steam turbine generator set will be retained. The total investment for the project is 904.75 million yuan.
The caprolactam expansion project of Hebei Cangzhou Xuyang Chemical Co., Ltd. involves a lignite-based hydrogen production and ammonia synthesis facility, comprising two gasification units operating in parallel; the gasification pressure is 6.7 MPaG, with each unit producing 65,000 Nm3/h of gas (CO + H2). Together, the two gasification units generate approximately 60 t/h of saturated steam at a pressure of 7.2 MPaG. Production is scheduled to begin in May 2022. The caprolactam expansion project of Cangzhou Xuyang Chemical Co., Ltd. has a total investment of 4.5 billion yuan. It involves the construction of a caprolactam production facility with an annual capacity of 300,000 tons, a **production facility with an annual capacity of 270,000 tons, a hydrogen peroxide production facility with an annual capacity of 343,000 tons (35%), a sulfuric acid an production facility with an annual capacity of 450,000 tons, a hydrogen production facility using lignite, as well as a synthetic ammonia production facility with an annual capacity of 300,000 tons, along with supporting raw material and utility facilities. Cangzhou Xuyang Chemical Co., Ltd.’s caprolactam expansion project is a large-scale modern chemical facility that produces liquid caprolactam using raw materials such as lignite coke, benzene, fuming sulfuric acid, and alkaline solutions. The project is located within the Cangzhou Xuyang Chemical Industrial Park. The construction includes a caprolactam plant with an annual production capacity of 300,000 tons, an ammonium sulfate plant with a capacity of 450,000 tons, a ** plant with a capacity of 270,000 tons, a synthetic ammonia plant with a capacity of 300,000 tons, a lignite-to-hydrogen plant with an output of 80,000 Nm3/h, and a hydrogen peroxide plant with an annual production capacity of 120,000 tons (equivalent to 100% by weight). The raw material for the PSA hydrogen production unit in Cangzhou Xuyang Chemical Co., Ltd.’s caprolactam expansion project is hydrogen produced from semi-coke; the operating pressure of this unit can reach 5.9 MPa, making it the pressure-rated pressure swing adsorption unit with the highest pressure currently in use at Southwest Chemical. The volume of gas produced by this unit is 55,000 Nm3/h.
The exhaust gas comprehensive utilization project of Shandong Xuyang Fangming Chemical Co., Ltd. adopts the water-cooled wall waste boiler gasifier technology for water-coal slurry developed by Beijing Qingchuang Jinhua Technology Co., Ltd. (Jinhua Furnace 3.0). Vaporization pressure is 6.5 MPaG, and the gas volume per furnace is 86,000 Nm3/h (CO+H2). Commissioned in 2022. Shandong Fangming Chemical Co., Ltd. is located in the chemical industrial park of Dongming County. Its main products include **, cyclohexane, cyclohexanol, etc., while its by-products are light oil, X oil, sodium carbonate, etc. The company’s 100,000 tons per year **plant is currently the largest single **production facility of its kind in China. The project for producing 200,000 tons of caprolactam per year utilizes the most advanced technology from Italy. The **cyclic hexanamide off-gas comprehensive utilization project** of Shandong Fangming Chemical Co., Ltd. consists of three units: the hydrogen production unit uses coal as raw material and employs technologies such as 4.0MPa water-coal slurry pressurized gasification (using the patented Tsinghua Furnace technology from Tsinghua University), sulfur-resistant shift reaction, low-temperature methanol washing for desulfurization and decarbonization, and pressure swing adsorption for purification to produce 60,000 Nm3/h of hydrogen ； The nitrogen production unit uses PSA purification of caprolactam off-gases to produce nitrogen ； The ammonia synthesis plant uses low-pressure ammonia synthesis technology at 15.0 MPa to produce 140,000 tons of ammonia per year.
Project Overview: The synthetic ammonia feedstock route and energy-saving/emission-reduction technology renovation project in Zhejiang Jinju adopts the water-cooled wall waste boiler gasifier technology (Jinhua Furnace 3.0) developed by Beijing Qingchuang Jinhua Technology Co., Ltd. The gasification unit is designed as a dual-unit setup without a backup unit; the gasification pressure is 6.5 MPaG, and the volume of syngas produced is 94,000 Nm3/h (CO + H2). The water-cooled wall direct-connected waste boiler gasifier (Jinhua Furnace 3.0) for coal-water slurry replaces the existing batch fixed-bed gasifiers and low-pressure refractory brick quenched gasifiers. On December 10, 2021, the model review was completed for the technical renovation project of Zhejiang Jinju’s 39,000 Nm3 air separation plant, which utilized Jinhua Furnace 3.0 ； On November 7, the two molecular sieve adsorbers, which are large-scale equipment for Zhejiang Jinju’s 39,000 Nm3 air separation technology upgrade project, were successfully installed ； The capping of the main cold box was completed on November 3rd ； On November 1, the air-cooled tower and the water-cooled tower were successfully installed. Zhejiang Jinju Chemical Co., Ltd. was formerly the synthetic ammonia plant of Zhejiang Juhua Co., Ltd. It is a key listed company focused on the production of fertilizers, chemical raw materials, and fine chemical products, and serves as an important fertilizer production base in Zhejiang Province. The air separation technology renovation project includes the air separation units and circulating water stations that support Zhejiang Jinju’s ammonia synthesis feedstock route and energy-saving and emission-reduction technology renovation projects, as well as the associated utility systems and auxiliary facilities; the contract duration is 23 months. Donghua Technology is responsible for the design, procurement, and construction (EPC) of the technical renovation project for the 39,000 Nm3/h air separation unit at Zhejiang Jinju, with a contract value of 262 million yuan.