洁净煤技术
潔淨煤技術
길정매기술
CLEAN COAL TECHNOLOGY
2014年
4期
109-112,67
,共5页
张科达%王鹏%董卫果%唐楠%李小亮
張科達%王鵬%董衛果%唐楠%李小亮
장과체%왕붕%동위과%당남%리소량
煤层气%非催化燃烧%除氧
煤層氣%非催化燃燒%除氧
매층기%비최화연소%제양
coalbed methane%non-catalytic combustion%deoxidization
煤层气由于热值及浓度较低,达不到工业利用要求,工业应用中需进行浓缩。由于煤层气中含有氧,给浓缩过程带来了不安全因素,因此在浓缩前必须将氧除去。简要介绍了煤层气除氧的几种方法,并在除氧反应器装置上对煤层气非催化燃烧除氧进行了实验研究。结果发现,通过非催化燃烧法除氧,O2浓度能够降至1％以下；选用的除氧燃料须具有反应活性好、热值低的特点；除氧温度接近600℃时,CH4损失率小于5％,CH4的裂解是造成CH4损失的主要原因。
煤層氣由于熱值及濃度較低,達不到工業利用要求,工業應用中需進行濃縮。由于煤層氣中含有氧,給濃縮過程帶來瞭不安全因素,因此在濃縮前必鬚將氧除去。簡要介紹瞭煤層氣除氧的幾種方法,併在除氧反應器裝置上對煤層氣非催化燃燒除氧進行瞭實驗研究。結果髮現,通過非催化燃燒法除氧,O2濃度能夠降至1％以下；選用的除氧燃料鬚具有反應活性好、熱值低的特點；除氧溫度接近600℃時,CH4損失率小于5％,CH4的裂解是造成CH4損失的主要原因。
매층기유우열치급농도교저,체불도공업이용요구,공업응용중수진행농축。유우매층기중함유양,급농축과정대래료불안전인소,인차재농축전필수장양제거。간요개소료매층기제양적궤충방법,병재제양반응기장치상대매층기비최화연소제양진행료실험연구。결과발현,통과비최화연소법제양,O2농도능구강지1％이하；선용적제양연료수구유반응활성호、열치저적특점；제양온도접근600℃시,CH4손실솔소우5％,CH4적렬해시조성CH4손실적주요원인。
Low heat value and concentration of coalbed methane make it can’t meet the requirement of industry utilization.So it should be concentrated.The oxygen in coalbed methane increases dangers for concentration process.So it is necessary to remove oxygen from the gas before concentrating.Several deoxidization methods of coalbed methane are briefly represented,and experimental study on the deoxidization of coalbed methane with non-catalytic combustion method in a deoxidization reactor is carried out.The results show that the concentration of oxygen can be reduced to less than 1% with non-catalytic combustion method.The fuel used for deoxidization should have the character-istics of good reactivity and low calorific value.The loss rate of methane is less than 5%,while the deoxidization temperature is close to 600℃,the pyrolysis of methane is the main reason of methane loss.
