在超临界水中由城市污泥制取富氢气体的研究  

Study on Hydrogen Rich Gas Production from Sludge in Supercritical Water

作　　者：王志锋[1] 韩丽娜[2] 梁鹏[3] 程乐明[2] 毕继诚[2] 

机构地区：[1]中国兵器科学研究院宁波分院,浙江宁波315103 [2]中国科学院山西煤炭化学研究所煤转化国家重点实验室,山西太原030001 [3]山东科技大学化学与环境工程学院,山东青岛266510

出　　处：《中国给水排水》2009年第7期13-16,共4页China Water & Wastewater

基　　金：宁波市自然科学基金资助项目(2007A610059);中科院山西煤炭化学研究所煤转化国家重点实验室开放基金资助项目(08-202)

摘　　要：以城市污泥转化为富氢气体为目的，使用超临界水（SCW）间歇反应器，在反应温度为500～650℃、压力为22．8—37MPa、停留时间为1～36min以及水料比为2．6—6的条件下，考察了城市污泥在超临界水中生成的气体组分及产率。试验结果表明，反应温度和水料比对污泥转化的影响较大。当温度由500℃提高到650℃时，氢气产率由16．54mL／g上升到62．4mL／g；当水料比由2．6提高到6时，氢气产率提高了1倍多。与温度相比，压力和停留时间对污泥转化的影响不大。The hydrogen rich gas production from municipal sludge in supercritical water was studied using a batch reactor. Under the conditions of temperature of 500 ℃ to 650 ℃, pressure of 22.8 to 37 MPa, reaction time of 1 to 36 min and water/sludge weight ratio of 2.6 to 6, the gas composition and yield were investigated. The experimental results indicate that the temperature and the water/sludge wel 16.54 ratio have considerable influence on sludge mL/g to 62.4 mL/g when the temperature is gasification. The hydrogen yield is increased from changed from 500 ℃ to 650 ℃. The hydrogen yield is doubled when the water/sludge weight ratio is increased from 2.6 to 6. Compared to the temperature, the reaction time and the pressure have a smaller effect on sludge gasification.

关 键 词：超临界水 城市污泥 富氢气体 

分 类 号：X703[环境科学与工程—环境工程]