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All testing for the hydrogen production unit in Shaanxi’s 500,000-ton/year coal tar deep processing project has been completed, and operation is imminent. Author/Source: Coal Tar Deep Processing and Hydrogenation Technology Collaboration Group. Date: June 11, 2020. Clicks: 63. On June 8, as the testing phase of Shaanxi Jingyi Chemical’s 500,000-ton/year coal tar deep processing and multi-product integrated utilization project progressed, testing was successfully completed on the propylene refrigeration compressor unit, which is part of the hydrogen production unit. This success means that all compressors in this unit have been tested successfully, and the unit is now ready for operation. On June 3, the single-unit test of the turbine in the propylene refrigeration unit was successful. Following continuous adjustments by the construction team, the equipment manufacturers, and relevant personnel from the company, the compression unit is now ready for joint operation tests. At 9 a.m. on June 8, the unit’s trial operation officially began – warming up, accelerating, operating… The operators carried out the procedures skillfully and calmly in accordance with the plan. Throughout the process, all members of the trial operation team worked together closely, performed their tasks diligently, and recorded the raw data in a timely manner; all operational parameters of the unit were normal. At 16:30 on June 8, as the control room pressed the stop button, the unit’s trial operation was declared a complete success. Shaanxi Jingyi Chemical’s 500,000 tons per year project for the deep processing and integrated utilization of coal tar involves the use of advanced technologies with independent intellectual property rights, developed specifically for the characteristics of coal tar. The core technology consists of a combination of boiling-bed hydrogenation for quality improvement of coal tar across all fractions, along with fixed-bed hydrocracking; using medium- and low-temperature coal tar as raw material, this process primarily produces high-value aromatic chemical products. The project covers an area of about 1,200 mu, with an estimated investment of around 4.6 billion yuan. Construction of the project officially began in August 2017, and it is now in the final stages of design, civil works and safety preparations, as well as equipment installation. Completion and commissioning are expected by the end of October 2019. The projects mainly include: a 550,000-ton/year coal tar pretreatment unit, a 500,000-ton/year coal tar fluidized-bed hydrocracking unit, a 450,000-ton/year coal tar fixed-bed hydrocracking unit, a 400,000-ton/year naphtha continuous reforming unit, a 170,000-ton/year aromatic extraction unit, a 50,000 cubic meters per hour coal-to-hydrogen unit, a 50,000 cubic meters per hour air separation unit, a 100,000-ton/year methanol synthesis unit, as well as related supporting facilities such as hydrogen purification (PSA) units, sulfur recovery units, phenol-amine recovery units, storage and transportation systems, and other auxiliary and environmental protection systems.