不同固体含量下牛粪和秸秆厌氧发酵中微氧法原位脱硫效果研究  

Study on in-situ desulfurization effect of ox manure and straw fermentation under different solid contents

作　　者：于美玲 周岩 于洋 张大雷 寇巍 Yu Meiling;Zhou Yan;Yu Yang;Zhang Dalei;Kou Wei(Liaoning Institute of Energy Resources Co.,Ltd.,Yingkou 115003,China;College of Energy and Environment Shenyang Aerospace University,Shenyang 110136,China;Yingkou Environmental Assessment Co.,Ltd.,Yingkou 115003,China)

机构地区：[1]辽宁省能源研究所有限公司,辽宁营口115003 [2]沈阳航空航天大学能源与环境学院,辽宁沈阳110136 [3]营口环境评价有限公司,辽宁营口115003

出　　处：《可再生能源》2021年第7期872-876,共5页Renewable Energy Resources

基　　金：“十三五”国家重点研发计划课题(2017YFD0800802);辽宁省事业公益研究基金(20180051)。

摘　　要：以牛粪和秸秆为原料进行厌氧发酵试验,研究固体含量(TS)为10%,15%和20%的3种发酵底物,采用微氧法原位脱硫对厌氧发酵的产气量、H2S去除率、甲烷体积分数和O_(2)残留量等的影响。研究结果显示:采用微氧法原位脱硫后的3组发酵试验的日产气量都有所提高;尤其是TS20%组,通入空气后,日产气量(VS)提高了2 mL/g,说明微氧法原位脱硫对干发酵具有很好的促进作用;TS15%和TS 20%两组试验的脱硫效果显著,H2S的去除率均大于90%;各试验组与对照组的甲烷体积分数相差不大;试验组通入空气后,O_(2)的残留量一般在0.5%左右,满足《车用天然气标准》的要求,表明微氧法原位脱硫不会影响沼气的厌氧发酵系统,是一种切实可行的沼气脱硫方法。The anaerobic fermentation of cow manure and straw was studied,the total solid was10%,15%and 20%respectively.The effects of micro-oxygen in situ desulphurization were researched,include gas production,H2 S removal rate,methane volume fraction and O_(2) residue.The results indicate that,after the micro-oxygen desulphurization,the daily gas production of the three groups(TS10%,TS15%,TS20%)was increased,especially TS20%,the gas production has increased 2 ml/g VS after the air was in,and the results showed that micro-oxygen in situ desulfurization had a good effect on dry fermentation.The two test of TS15%and TS20%,the desulphurization effect was remarkable,the removal rate of H2 S was above 90%,the test of TS10%had a slightly worse desulphurization effect.There was no significant difference in methane volume fraction between the experimental group and the control group.The test group was given air,O_(2) residue generally fluctuated around 0.5%,meet the requirements of the Automotive Natural Gas Standard.It shows that micro-oxygen in situ desulphurization does not affect the anaerobic fermentation system,it is a feasible method of biogas desulphurization.

关 键 词：发酵浓度 微氧法原位脱硫 甲烷体积分数 H2S去除率 氧气残留量 

分 类 号：TK6[动力工程及工程热物理—生物能] S216.4[农业科学—农业机械化工程]