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Latest Progress on the Commissioning of Shaanxi Jingyi Chemical’s 500,000-ton Coal Tar Deep Processing Project Author/Source: Shaanxi Jingyi Chemical Date: 2019-12-25 Clicks: 26 On the morning of December 23, the purging process for the PSA unit in the hydrogen production center was successfully completed. Since the purging work began on November 24, the hydrogen production center has attached great importance to it and made careful arrangements. Faced with the heavy workload and high difficulties associated with the purging tasks, all members of the synthesis team worked together with full commitment; a total of 352 nozzles were purged, 1,200 temporary asbestos gaskets were fabricated on-site, 120 temporary purging pipelines were installed, and 30 temporary connections were made. Based on the conditions of the equipment, the purging plan was repeatedly studied and optimized; clear responsibilities were assigned, and each pipe connection was deemed successful only when it met the required standards. This task was completed efficiently and to a high standard, laying a solid foundation for the subsequent feeding and testing of the PSA unit. The steam purging process for the fixed-bed unit at the oil products center has been completed. On the morning of December 21st, good news came from the site of Shaanxi Jingyi Chemical Co., Ltd.’s oil products center: the 3.5MPa steam purging of the fixed-bed unit passed the tests on two consecutive occasions, laying the foundation for the subsequent trial operation of the turbine. The steam purging operation of 3.5 MPa on the fixed-bed unit is an important part and prerequisite for the commissioning of this unit. The Oil Products Center unified its efforts, set clear goals, overcame various difficulties, and got rid of all unfavorable factors, thereby advancing the commissioning process in a proactive and steady manner. The company’s laboratory was officially put into use. On the afternoon of December 20, the relocation of the company’s laboratory to the new building was completed, creating favorable conditions for carrying out analysis and testing tasks more effectively in the future. Since mid-November, the construction of the company’s laboratory building has been coming to an end. In order to ensure that the laboratory can be put into use as soon as possible, all the staff in the laboratory have worked to keep the interior clean and tidy. At the same time, they assisted the manufacturers in transporting various testing instruments, as well as boxes of glassware and chemicals, to their designated locations, thus creating favorable conditions for the laboratory staff to move into their new premises. Shaanxi Jingyi Chemical Co., Ltd. is a new-type coal chemical enterprise jointly invested in by Shaanxi Yulin Energy Group Co., Ltd., Shaanxi Hengyuan Investment Group Co., Ltd., and Shenmu Financial Holding Group Co., Ltd. Its first-phase project, involving the deep processing of 500,000 tons per year of coal tar for multi-product integrated utilization, is China’s first industrial demonstration unit using a fluidized bed technology and also the largest facility for the production of coal-based aromatics. The 500,000 tons per year coal tar deep processing and multi-product integrated utilization project utilizes advanced technologies with independent intellectual property rights, developed specifically for the characteristics of coal tar. The core technology involves a combination of boiling-bed hydrogenation for quality improvement of coal tar across all fractions and fixed-bed hydrocracking; using medium- and low-temperature coal tar as raw material, it 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.