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Zhongtian Hechuang achieves significant breakthroughs in two key production indicators. Author/Source: Sinopec News Network. Date: November 9, 2020. Clicks: 29. Since the beginning of this year, in order to fully exploit the potential benefits of plant operations and to continuously improve process management through innovation, the methanol department at Zhongtian Hechuang has implemented eight measures to ensure that efforts to reduce raw material usage and energy consumption yield actual results. First, by reducing the number of startups and shutdowns, it is possible to minimize the coal consumption losses resulting from the emission of syngas through flares during such operations ； Second, continuous efforts are made to optimize the process burners and to adjust and improve the operation of the gasification furnace, in order to extend their service life and operational duration. By stabilizing the methane content in the gasification furnace and controlling the load, as well as through continuous communication and improvements with the equipment manufacturers, the average service life of the burners used in the gasification furnace process has now been increased to around 70 days ； Third, based on changes in coal quality, the operating conditions of the gasification furnace are continuously optimized and adjusted, and operational and management experience is gained, thereby gradually reducing the number of times online emission flares are used to handle abnormal conditions in the gasification furnace caused by fluctuations in coal quality ； Fourth, recycle the waste coal slurry generated during the production process of the gasification unit for reuse ； Fifth, gradually improve the control and optimization of the black water flash valve and buffer tank in the gasification unit, to prevent raw coal loss due to online gas release during operation caused by clogging of the valve or wear of the pipelines ； Sixth, continuously monitor and optimize the control of the inert gas content in the syngas system, to prevent the efficiency of the methanol synthesis reaction from being affected by the infiltration of inert gases into the system ； Seventh, optimize the regulation of the hydrogen-to-carbon ratio; adjust the operation of additional hydrogen compressors and the recovery of contaminated methanol in a timely manner, and prevent the release of vent gases ； Eighth, optimize process adjustments, implement energy-saving technological upgrades, make full use of the energy capacity of existing processes and equipment to ensure a design margin, and reduce energy consumption for water, electricity, gas, and other fuel sources. Through these measures and continuous improvement in management, the coal consumption per ton of MTO-grade methanol production in October was 1.478 t/t, a decrease of 0.146 t/t compared to the previous period, reaching the best level since the plant began operations in 2016 ； The comprehensive energy consumption per ton of pure methanol was 942.43 kgoe/t, a decrease of 70.12 kgoe/t compared to the previous period, reaching the lowest level in the past two years. Based on the production volume of 393,200 tons of MTO-grade methanol in October, there was a year-on-year reduction of 57,400 tons in the amount of raw coal used, as well as a reduction of 27,600 tons of standard oil equivalent in energy consumption. At 350 yuan per ton of raw coal, the cost reduction alone due to raw material production amounts to approximately 20 million yuan.