CAJ | 학술논문

以感冒清热颗粒中药渣为原料，在双回路循环流化床中试设备中进行热解气化实验，研究原料含水率、原料粒径以及空气当量比ER对其气化特性的影响。结果表明：①随着原料含水率的提高，炉内平均温度降低，产生的燃气中焦油含量、CO2含量明显提高；CO含量、气体产率、碳转化率显著降低；H2含量、燃气热值以及气化效率均呈现先增大后减小的趋势。②原料粒径越小，反应炉内平均温度越高，燃气中焦油含量越低，燃气热值和气体产率越高，气化效率以及碳转化率越高；H2、CH4、CO、CnHm含量增加，CO2含量减少。③随着ER的增大，可燃气体尤其是CO的浓度不断降低，CO2含量不断增加；炉内平均温度、气体产率以及碳转化率均逐渐增大；燃气热值和燃气中焦油质量浓度逐渐减小；气化效率则呈现先增大后减小的变化趋势。④当原料含水量<9%、原料粒径<4mm以及ER在0.25～0.27时，气化效率较高，具有较好气化特性。
이감모청열과립중약사위원료，재쌍회로순배류화상중시설비중진행열해기화실험，연구원료함수솔、원료립경이급공기당량비ER대기기화특성적영향。결과표명：①수착원료함수솔적제고，로내평균온도강저，산생적연기중초유함량、CO2함량명현제고；CO함량、기체산솔、탄전화솔현저강저；H2함량、연기열치이급기화효솔균정현선증대후감소적추세。②원료립경월소，반응로내평균온도월고，연기중초유함량월저，연기열치화기체산솔월고，기화효솔이급탄전화솔월고；H2、CH4、CO、CnHm함량증가，CO2함량감소。③수착ER적증대，가연기체우기시CO적농도불단강저，CO2함량불단증가；로내평균온도、기체산솔이급탄전화솔균축점증대；연기열치화연기중초유질량농도축점감소；기화효솔칙정현선증대후감소적변화추세。④당원료함수량<9%、원료립경<4mm이급ER재0.25～0.27시，기화효솔교고，구유교호기화특성。
The effect of properties of herb residue and air equivalence ratio on the gasification characteristics of Gangmaoqingre granules was investigated. Experiments were conducted in a pilot-scale dual-loop circulating fluidized bed. With the increase of water content,gasification temperature gradually decreased,the contents of tar and CO2 increased,while CO content and carbon conversion rate decreased. Besides,H2 content,gas calorific value and gasification efficiency increased first and then decreased. Smaller particle size contributed to lower tar content and gas calorific value. However,gas yield,gasification efficiency and carbon conversion increased gradually. With the decrease of particle size,H2,CH4,CO,CnHm contents and gasification temperature increased while CO2 content decreased. With the increase of air equivalence ratio,concentration of combustible gas, especially CO,gas calorific value and tar content gradually decreased. Besides,gasification temperature,gas yield and carbon conversion rate gradually increased. But gasification efficiency increased first and then decreased. When water content was smaller than 4% ,granularity was smaller than 4mm and air equivalence ratio was between 0.25 and 0.27,gasification efficiency would be higher,gasification result would be better.