CAJ | 학술논문

以生物质樟子松酸洗样品以及构建生物质的纤维素、半纤维素和木质素三大组分为研究对象，通过热重分析仪研究了K、Ca和Mg金属盐(KCl、CaCl2和MgCl2)对实验样品的热解影响以及催化效果。结果表明：CaCl2的添加能抑制热解过程中的缩合反应，使得半纤维素和樟子松酸洗样品的热解失重曲线出现“肩”状峰，低分子化合物更易逃逸，促进了热分解过程；MgCl2的添加对纤维素的热解有一定的催化效果，使其最大热解失重速率以及所对应的热解温度都逐渐降低，但是对半纤维素的热解过程影响较小；KCl 对生物质三大基本组分的影响虽然很小，但对樟子松酸洗样品表现出较好的热解催化效果。
이생물질장자송산세양품이급구건생물질적섬유소、반섬유소화목질소삼대조분위연구대상，통과열중분석의연구료K、Ca화Mg금속염(KCl、CaCl2화MgCl2)대실험양품적열해영향이급최화효과。결과표명：CaCl2적첨가능억제열해과정중적축합반응，사득반섬유소화장자송산세양품적열해실중곡선출현“견”상봉，저분자화합물경역도일，촉진료열분해과정；MgCl2적첨가대섬유소적열해유일정적최화효과，사기최대열해실중속솔이급소대응적열해온도도축점강저，단시대반섬유소적열해과정영향교소；KCl 대생물질삼대기본조분적영향수연흔소，단대장자송산세양품표현출교호적열해최화효과。
Effects of salts of potassium,calcium and magnesium(KCl,CaCl2 and MgCl2)on the pyrolytic and catalytic characteristics of pickling sylvestris and three ingredients of biomass(cellulose,hemicellulose and lignin)were investigated by using thermal gravimetric analyzer. It was found that CaCl2 serving as a pyrolytic catalyst could inhibit the condensation reaction during thermal decomposition,resulting in the“shoulder”shaped peak of the mass loss curve for hemicellulose and pickling sylvestris. In addition,compounds with low molecular weight were likely to be lost,which promoted the thermal decomposition process. MgCl2 had a good catalytic effect on the decomposition of cellulose.It gradually led to the decrease of both the maximum pyrolysis rate and corresponding pyrolysis temperature,but it had less influence on the decomposition of hemicellulose. Though the effect of KCl on the decomposition of three major ingredients of biomass was negligible,KCl showed a good pyrolytic and catalytic effect on the decomposition of pickling sylvestris.