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Completion of the civil construction and installation work for the coal storage and transportation system in Zhejiang Jinju Chemical’s synthetic ammonia feedstock route and energy-saving/emission-reduction technology upgrade project – Author/Source: Gasification World, Date: 2023-04-14, Clicks: 84. Recently, the civil construction and installation work for the coal storage and transportation system in this project, undertaken by the East China Branch of Sinochem Second Construction Group Co., Ltd., was successfully completed and put into operation. At the same time, the successful commissioning of the project has injected new momentum into the development of the Zhejiang Jinju Chemical Industry Park. With the cooperation of all parties involved, Furnace B of the gasification unit in Zhejiang Jinju Chemical Co., Ltd.’s synthetic ammonia feedstock route and energy-saving emission-reduction technology upgrade project was successfully commissioned for its first feed operation at 2:16 p.m. on January 18, 2023. After feeding the materials, all technical parameters were normal, and the plant officially entered the trial production phase. The synthetic ammonia feedstock route and energy-saving and emission-reduction technology renovation project of Zhejiang Jinju Chemical Industry adopts the water-cooled wall waste boiler gasifier (Jinhua Furnace 3.0) technology developed by Beijing Qingchuang Jinhua Technology Co., Ltd. The gasification unit is configured with two units in operation, one as a backup; the gasification pressure is 6.5 MPaG, and the total gas volume is 94,000 Nm3/h (CO + H2). The water-cooled wall direct-connected waste-heat gasifier for coal-water slurry (Jinhua Furnace 3.0) replaces the existing batch fixed-bed gasifiers and low-pressure refractory brick quenched gasifiers, achieving an annual production capacity of 350,000 tons of ammonia. Project Overview: Zhejiang Jinju Synthetic Ammonia Project involves the construction of new production facilities such as a Jinhua Furnace 3.0 water-coal slurry gasification unit, shift converter, methanol scrubber, liquid nitrogen scrubber, and a three-bed radial Casali ammonia synthesis unit, along with various auxiliary systems. This results in 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. 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 cryogenic tank 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 ammonia synthesis 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) as a turnkey contractor for the technical renovation project of Zhejiang Jinju’s 39,000 Nm3/h air separation plant, with a contract value of 262 million yuan.