热力发电
熱力髮電
열력발전
THERMAL POWER GENERATION
2015年
7期
28-33,39
,共7页
水蒸气共气化%甘油%稻壳%合成气%热值
水蒸氣共氣化%甘油%稻殼%閤成氣%熱值
수증기공기화%감유%도각%합성기%열치
co-steam-gasification%glycerol%rice husk%syngas%low calorific value
以水蒸气为气化介质,在固定床实验台上进行了稻壳(Car．bio )/甘油(Car．gly )共气化制合成气实验研究,考察了温度和 n(H 2 O)∶n(C)(摩尔比),m(Car．gly )∶m(Car．bio )(质量比)等参数对合成气成分及其热值的影响.结果表明：随温度的升高,H 2体积分数先升高,后缓慢降低,在700℃时达到最大值,CO 体积分数随温度的升高而升高,热值随温度的变化与 H 2体积分数的变化趋势相反,并在700℃时达到最小值；随 n(H 2 O)∶n(C)的升高,H 2体积分数不断升高,CO 体积分数和热值不断降低,并且三者在 n(H 2 O)∶n(C)为2．0~2．5之间均达到平台期；随 m(Car．gly )∶m (Car．bio )的升高,H 2体积分数缓慢升高,CO 体积分数缓慢降低,热值由10．30 MJ/m3升至10．76 MJ/m3；随温度的升高,氢气产率、气体产率、碳的转化率明显升高,但是温度过高,碳的转化率反而会降低.
以水蒸氣為氣化介質,在固定床實驗檯上進行瞭稻殼(Car．bio )/甘油(Car．gly )共氣化製閤成氣實驗研究,攷察瞭溫度和 n(H 2 O)∶n(C)(摩爾比),m(Car．gly )∶m(Car．bio )(質量比)等參數對閤成氣成分及其熱值的影響.結果錶明：隨溫度的升高,H 2體積分數先升高,後緩慢降低,在700℃時達到最大值,CO 體積分數隨溫度的升高而升高,熱值隨溫度的變化與 H 2體積分數的變化趨勢相反,併在700℃時達到最小值；隨 n(H 2 O)∶n(C)的升高,H 2體積分數不斷升高,CO 體積分數和熱值不斷降低,併且三者在 n(H 2 O)∶n(C)為2．0~2．5之間均達到平檯期；隨 m(Car．gly )∶m (Car．bio )的升高,H 2體積分數緩慢升高,CO 體積分數緩慢降低,熱值由10．30 MJ/m3升至10．76 MJ/m3；隨溫度的升高,氫氣產率、氣體產率、碳的轉化率明顯升高,但是溫度過高,碳的轉化率反而會降低.
이수증기위기화개질,재고정상실험태상진행료도각(Car．bio )/감유(Car．gly )공기화제합성기실험연구,고찰료온도화 n(H 2 O)∶n(C)(마이비),m(Car．gly )∶m(Car．bio )(질량비)등삼수대합성기성분급기열치적영향.결과표명：수온도적승고,H 2체적분수선승고,후완만강저,재700℃시체도최대치,CO 체적분수수온도적승고이승고,열치수온도적변화여 H 2체적분수적변화추세상반,병재700℃시체도최소치；수 n(H 2 O)∶n(C)적승고,H 2체적분수불단승고,CO 체적분수화열치불단강저,병차삼자재 n(H 2 O)∶n(C)위2．0~2．5지간균체도평태기；수 m(Car．gly )∶m (Car．bio )적승고,H 2체적분수완만승고,CO 체적분수완만강저,열치유10．30 MJ/m3승지10．76 MJ/m3；수온도적승고,경기산솔、기체산솔、탄적전화솔명현승고,단시온도과고,탄적전화솔반이회강저.
Taking water steam as the gasification medium,this study investigated the syngas production from co-steam-gasification of rice husk and glycerol in a fixed bed system.The effects of operating tempera-ture,mole ratio of H 2 O to C and mass ratio of glycerol to rice husk on the syngas distribution and its low calorific value were studied.The results show that,with an increase in temperature,the H 2 concentration increased at first and then decreased slowly,it reached the maximum value at 700 ℃.While the low calorific value has an opposite change trend,it reached the minimum value at 700 ℃.The CO concentration in-creased rapidly with the temperature.As the mole ratio of H 2 O to C increases,the H 2 concentration in-creased while the CO concentration and low calorific value decreased slowly,and all the three parameters changed little when the mole ratio of H 2 O to C is within the range from 2.0 to 2.5.As the mass ratio of glycerol to rice increases,the H 2 concentration increased gradually,the CO concentration decreased,and the low calorific value increased from 10.3 MJ/m3 to 10.76 MJ/m3 .The hydrogen yield,gas yield and carbon conversion increased obviously with the temperature,but over high temperature will cause a decrease in carbon conversion.
