Zhong Guo Hua Gong Bao·2025-09-12 09:15Core Viewpoint - The successful operation of the 2000-ton semi-waste gasification furnace developed by Aerospace Changzheng Chemical Engineering Co., Ltd. has set a new world record for continuous operation, achieving over two years of stable performance, significantly enhancing the competitiveness of ammonia products in the market [2][3][5]. Technology and Innovation - The semi-waste gasification technology has been recognized as a core technology in the coal gasification field, supported by national policies aimed at promoting energy efficiency and carbon reduction [3][11]. - The gasification unit has successfully expanded the range of coal feedstock to over 20 types, maintaining stable operation despite variations in coal quality [3][11]. - Innovative technologies developed include slag cold wall technology, vibration ash cleaning technology, and a new slag water treatment process, resulting in 13 authorized patents, including 4 invention patents [7][9]. Operational Efficiency - The gasification furnace operates at a pressure of 4.0 MPa, with an effective gas output of 130,000 standard cubic meters per hour, and produces high-pressure saturated steam at a stable rate of 45 tons per hour without decline [9][10]. - The comprehensive energy consumption for liquid ammonia production is controlled at 1130 kg standard coal per ton, significantly improving market competitiveness and profitability [9][10]. Environmental Impact - The operation of the semi-waste gasification furnace allows for the recovery of high-quality thermal energy equivalent to 50,000 tons of standard coal annually, reducing carbon dioxide emissions by 130,000 tons [10][11]. - The technology exemplifies successful energy recovery and utilization, contributing to cleaner, efficient, and low-carbon coal utilization [10][11]. Industry Significance - The successful operation of the semi-waste gasification furnace serves as a valuable practical example for the promotion of semi-waste gasification technology in the coal chemical industry, supporting the transformation and upgrading of the sector [11]. - The technology has been applied in 11 engineering projects, totaling 47 gasification furnaces, providing solid technical support for energy security and carbon reduction in the modern coal chemical industry [11].