摘要
介绍了国内外几种典型的煤干馏工艺,根据热载体类型的不同,可以分为气体热载体法、固体热载体法和气-固热载体法,从工艺流程、原理特点、问题不足、工业化程度等方面对这几种典型工艺进行了详细分析.在此基础上提出了清华大学的流化床气-固热载体法干馏工艺,详细介绍了该工艺的工艺流程和技术特点.该工艺可以产生更多高价值的轻质焦油,同时产生清洁的产品煤气和半焦,具有重要的推广价值.
This paper gives a comprehensive presentation and comparation of the current technologies of coal low-temperature pyrolysis available at home and abroad.They are categorized into gas heat carrier technology,solid heat carrier technology and gas-solid heat carrier technology according to the different types of heat carriers.This paper analyzes the technological processes,advantages and disadvantages and industrialization degrees of the current technologies.On that basis,we put forward the technology of coal pyrolysis with gas-solid heat carrier in fluidized bed of Tsinghua University,which is given a detailed introduction of the technological process and technical feature in this paper.The technology is capable of producing high added-value light liquid products and co-producing clean gas and solid products.It has a good development prospect in future.
出处
《煤炭转化》
CAS
CSCD
北大核心
2014年第3期90-96,共7页
Coal Conversion
基金
国家重点基础研究发展计划(973)项目(2011CB201502)
云南省科技创新强省计划项目(2010AD010)
云南省重大科技专项项目(2012ZB006)
关键词
低温干馏
工艺流程
热载体
流化床
low-temperature pyrolysis
technological process
heat carrier
fluidized bed
