[Ten years of major development in chemical technology] 060-2019 The world's first double fluidized bed ultra-large pulverized coal gasification (KSY) test device
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Chemical science and technology has developed greatly in the past ten years. Praise for China's prosperity and strength in the prosperous age. It will be more lively and exciting with everyone's participation. Everyone is welcome to participate in more forum exchanges and discussions. Everyone pays attention to safety and knows how to respond to emergencies. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * On April 27, 2019, the world's first dual-fluidized bed ultra-large (5000 t/d) pulverized coal gasification (KSY) technology industrial test device (100 t/d) passed the 72-hour on-site assessment and calibration by the Expert Committee of the Shaanxi Chemical Industry Society in a very stable and fully automated state without manual intervention. The calibration results show that the device load, gas production rate, effective gas (CO+H2), gas calorific value, cold gas efficiency and carbon conversion rate all meet or exceed the design indicators. This important innovation in coal gasification technology marks a major breakthrough in my country's ultra-large coal gasification technology. KSY technology is a dual fluidized bed pulverized coal gasification technology that adopts dry feeding, dry ash discharge, and efficient coupling of two-stage reactors. This technology has the advantages and characteristics of large single-set processing capacity, wide adaptability to coal types, low project investment, low consumption and environmental protection. The scale of the industrial test device calibrated this time is 100 t/d. The device started construction in 2013 and completed its first feeding test in 2016. It has carried out 9 tests so far, burned multiple coal types in the northern Shaanxi and Binchang mining areas, and obtained a large amount of detailed test data. Through experimental research, the fluidization theory of the double-circulation fluidization field was established, and core technologies and equipment such as a proprietary fluidized bed pulverized coal feeding system, an efficient and accurate gasification agent regulation and temperature control system, and a continuous pressure reduction ash discharge device were developed, thus forming a complete set of highly innovative pulverized coal gasification process technologies.
KSY technology is a dual fluidized bed pulverized coal gasification technology that adopts dry feeding, dry ash discharge, and efficient coupling of two-stage reactors. This technology has the advantages and characteristics of large single-set processing capacity, wide adaptability to coal types, low project investment, low consumption and environmental protection. The scale of the industrial test device calibrated this time is 100 t/d. The device started construction in 2013 and completed its first feeding test in 2016. It has carried out 9 tests so far, burned multiple coal types in the northern Shaanxi and Binchang mining areas, and obtained a large amount of detailed test data. Through experimental research, the fluidization theory of the double-circulation fluidization field was established, and core technologies and equipment such as a proprietary fluidized bed pulverized coal feeding system, an efficient and accurate gasification agent regulation and temperature control system, and a continuous pressure reduction ash discharge device were developed, thus forming a complete set of highly innovative pulverized coal gasification process technologies. After on-site inspections, DCS background historical data retrieval, on-site measurements and data verification, inquiries and answers, complex data calculations, and rigorous and lively discussions and demonstrations, the calibration expert group unanimously agreed that the first and second gasification reactors in this technology have a high degree of engineering innovation. The perfect coupling realizes the efficient conversion of carbon and the efficient production of syngas under two different temperature fields, fluidization fields and solid particles under high-rate dual-circulation fluidization conditions. It provides detailed and reliable basic data for the process design package of the 5000 tons/day ultra-large industrial unit under development. The patented and proprietary equipment in the device, such as the riser reactor, TCD reactor, high-efficiency multi-stage rotary separation, continuous pressure reduction ash discharge device, fluidized bed waste pot, PCD dust collector, etc., are operating well, constructing a complete, efficient, and innovative pulverized coal gasification process technology system. Its advancement and reliability have been fully verified during this calibration process.
On August 21, 2019, the Yanchang Petroleum Hydrocarbon Efficient Utilization Technology Research Center organized a scientific and technological achievements appraisal meeting to appraise the scientific and technological achievements of the "Double Fluidized Bed Ultra-large Pulverized Coal Gasification (KSY) Technology" independently developed by the Yanchang Petroleum R&D team. The appraisal committee unanimously agreed that the scientific and technological innovation achievement passed the technical achievement appraisal by listening to reports, questioning and answering questions.
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[Ten Years of Development in Chemical Technology] A series of summary posts, which are being updated continuously! https://bbs.hcbbs.com/thread-3594069-1-1.html (Source: Huahaichuanliu-Haichuan.com)