摘要
为了促进城市污泥热解工艺的工程化应用,组建了污泥热解系统、热解产物分离回收利用系统、废气净化排放系统于一体较完整的热解中试装置,在实现污泥有效处置的同时也实现了高值能源回收利用。中试工况优化,较好工况为：热解时间30-40 min,热解终温450-500℃,在此条件下,干化污泥（含水率5%）减量率为50%;热值为33.8 MJ/kg的热解油产率为17.1%左右。通过对中试运行效果的评估,得出热解油和热解气两者能量或污泥炭自身能量可供干化污泥热解本身所需能量,从而为推动污水污泥热解工艺的工程化利用提供了支持。
To promote engineering application of municipal sludge pyrolysis technology,pilot-scale sludge pyrolysis device integrated systems were set up to study the effectiveness of sewage sludge pyrolysis.The experiment showed that the best final temperature was 450 - 500°C and residence time was 30 - 40 min.Under the conditions,50% reduction rate of dried sludge and 17.1% yield of pyrolysis oil with 33.8MJ / kg of calorific value were obtained by optimization.Through energy balance analysis,energy produced from pyrolysis oil and gas together or just from sewage-char is almost sufficient to supply the energy required for sewage sludge pyrolysis,then this could accelerate the engineering application of sludge pyrolysis process.
出处
《环境工程学报》
CAS
CSCD
北大核心
2013年第9期3583-3588,共6页
Chinese Journal of Environmental Engineering
基金
国家"863"高技术研究发展计划项目(2009AA064704)
关键词
污泥热解
中试集成
效果评估
sludge pyrolysis
pilot-scale integration
effectiveness evaluation
