Successful commissioning of the fluidized bed hydrogenation unit in Shaanxi Jingyi Chemical’s 500,000-ton coal tar deep processing project

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Successful Commissioning of the Fluidized Bed Hydrogenation Unit in Shaanxi Jingyi Chemical’s 500,000-ton Coal Tar Deep Processing Project Author/Source: Coal Chemistry News Date: April 7, 2020 Clicks: 5 As of April 3, significant progress was made in the commissioning of the large-scale units at Shaanxi Jingyi Chemical Co., Ltd.’s oil product production center. The three new hydrogen compressors in the company’s fluidized bed hydrogenation unit, which operate under the highest pressures, were successfully tested under no-load conditions; all operational parameters met the design specifications, marking a major breakthrough in the commissioning of the company’s equipment. The new hydrogen compressor for the fluidized bed unit in this trial operation is a three-stage, 4M symmetrically balanced reciprocating compressor with an outlet pressure of 17.9 Mpa and a motor power of 3250 KW; it is the reciprocating compressor with the highest pressure rating in the entire company. The commissioning of this equipment presents great difficulties and challenging tasks. To ensure the smooth and orderly progress of the commissioning process, the leadership of Shaanxi Jingyi Chemical Co., Ltd. attached great importance to it and pooled their efforts. From addressing any remaining issues in the early stages, to conducting separate tests on mechanical, electrical, and instrumentation components prior to commissioning, and finally to achieving successful commissioning of all three compressors in just one attempt, the entire commissioning process was carried out in a systematic and scientific manner, with satisfactory results. Shaanxi Jingyi Chemical Co., Ltd.’s project for the deep processing of coal tar and multi-product integrated utilization represents the first large-scale coal-based aromatic hydrocarbon production line in China. It enables a comprehensive and systematic utilization of coal at different quality levels, representing a new industrial approach to the conversion and use of coal. The total investment in the project is 4.6 billion yuan. Once it is operational, it is expected to generate an annual sales revenue of around 4.5 billion yuan, with tax payments of over 600 million yuan. The project will also create employment for more than 1,000 people, offering significant economic and social benefits. The project is located in the Jinjie Industrial Park in Shenmu City, Shaanxi Province. The scale of construction includes a power station with 3×240 t/h high-temperature and high-pressure mixed combustion circulating fluidized bed boilers, 2×50 megawatt high-temperature and high-pressure direct air-cooled double-condensing steam turbines, 2×60 megawatt air-cooled generators, as well as civil engineering and installation works for other supporting systems.