Shaanxi Coal Chemical Shenmu Tianyuan Co., Ltd.’s 600,000 tons/year project for the comprehensive utilization of coal dust by grade

Thread Content

Recently, the civil engineering work for Shennu Tianyuan Co., Ltd. of Shaanxi Coal and Chemical Industry Group’s 600,000 tons per year project for the comprehensive utilization of coal dust by different grades is nearing completion. At present, the company’s project for the comprehensive utilization of coal ash by grade has entered the middle to later stages of construction. The Shenmu Tianyuan 600,000 tons/year demonstration project for the comprehensive utilization of coal ash by grade is planned to be located in the Jinjie Industrial Park of Shenmu County, to the west of the existing 500,000 tons/year project for the lightweight processing of medium-temperature coal tar. The total investment for the project is 6,283.63 million yuan. The project uses low-grade coal ash as raw material and carries out efficient conversion to produce high-value products such as coal tar (which can be processed into fuel oil in existing facilities), LNG, and LPG. In mid-September, Shenmu Tianyuan held a mobilization meeting titled \"Fight for 100 Days to Ensure the Completion of the 600,000 tons per day coal ash comprehensive utilization project by December 25, 2018\", in order to focus on the final 100 days of project construction. The goal is to ensure the mechanical completion of the 600,000 tons/year high-value comprehensive utilization project for pulverized coal by December 25, 2018. The project plans to build a production line for the diversified utilization of 6.6 million tons per year of coal dust, which will include 6 units with a capacity of 1 million tons per unit and 1 unit with a capacity of 600,000 tons per year for coal pyrolysis, as well as a facility for producing 277,000 tons per year of liquefied natural gas (LNG) and a facility for producing 6,650 tons per year of liquefied petroleum gas (LPG). Supporting facilities include 3×40,000 Nm3/h coal gasification units, air separation units capable of producing 30,000 Nm3/h of nitrogen and oxygen each, and 3×160 t/h high-pressure superheated coal powder boilers. It is reported that among the low-grade coal pyrolysis technologies with a capacity of 500,000 tons per year or more in single series at present, those that have been put into industrial production or are under trial mainly include Henan Longcheng’s 800,000-ton-per-year rotary-bed low-temperature pyrolysis process, the 500,000-ton-per-year gas-fired heat carrier multi-stage multi-layer low-grade coal pyrolysis process developed through cooperation between Shaanxi Coal Group and Beijing Guodian Futong, and Beijing Collinsda’s 1000,000-ton-per-year lignite belt furnace pyrolysis process. In addition, the low-rank pulverized coal gas-solid heat carrier rapid pyrolysis project being developed by Shaanxi Coal has a processing capacity of 1.2 million tons per year per unit ； The pulverized coal rotary furnace pyrolysis project under construction at Shenmu Tianyuan has a processing capacity of 600,000 tons per year per unit.