化工进展 ›› 2016, Vol. 35 ›› Issue (12): 4101-4102.

• 科研动态 • 上一篇    

低阶煤高值转化制备基础化工原料关键技术及应用

任其龙   

  1. 浙江大学化学工程与生物工程学院, 浙江 杭州 310027
  • 出版日期:2016-12-05 发布日期:2016-12-05
  • 基金资助:
    国家重点研发计划项目(2016YFB0301800)。

Key technologies and application of producing basic chemical materials from low-rank coal

REN Qilong   

  1. College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China
  • Online:2016-12-05 Published:2016-12-05

摘要: 制备电石、乙炔等基础化工原料是实现低阶煤高值转化的重要技术途径,现有技术普遍存在高污染、高能耗、高成本等问题。本文介绍了国家重点研发计划项目(2016YFB0301800)拟通过揭示低阶煤在电场耦合反应体系极端条件下物质传递与转化的科学规律,深入认识反应过程调控、放大和能量回收原理,突破旋转弧等离子炬工程化技术、大电流氢等离子体电源与低电压启弧技术、长寿命电极设计及烧蚀补偿技术、低成本粉状原料成型及高温固体物料输送技术等关键技术,形成节能、高效、低成本的低阶煤生产乙炔和电石成套工艺,建成5000吨/年等离子体裂解煤制乙炔工业示范装置及80万吨/年低阶煤蓄热式电石生产工业装置。

Abstract: The production of basic chemical materials including calcium carbide and acetylene is an important approach to realizing the value-added conversion of low-rank coal. However,current production technologies usually suffer from many problems including severe pollution,large energy consumption and high cost. This project is intended to reveal the basic science in the processes of mass transfer and chemical conversion under the extreme conditions in an electric field-coupling reaction system,and give deep understanding of the principles of process control,scaling-up and energy recovery. Then,many key technologies in the production are expected to be greatly improved,including the technology of industrializing the rotating arc plasma torch,the power supply with large current for hydrogen plasma and the arc starting at low voltage,the design of long-life electrode and the ablative compensation technology,the low-cost molding of powdery raw materials and the high-temperature transportation of materials. Based on these achievements,a highly efficient,energy-saving and low-cost process for the production of calcium carbide and acetylene from low-rank coal will be developed,and a 5000t/a demonstration plant of producing acetylene from coal by plasma pyrolysis and a 800000t/a industrial plant of the regenerative production of calcium carbide will be established.

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