CAJ | 학술논문

针对碱木质素难降解的特点，在间歇式反应器中，以Ru/C纳米管为催化剂，对碱木质素在超临界水中的气化进行研究。分别探讨了碱木质素在不同温度、水密度、反应时间、反应浓度、催化剂量的影响，并且分析了Ru/C纳米管催化剂的催化效率。通过单因素实验分析，确定了Ru/C纳米管催化剂催化气化碱木质素的最佳反应条件为，反应温度600℃、水密度0.1284 g/cm3、反应时间60 min、反应质量分数3.0%、催化剂量0.5 g/g(碱木质素)。结果表明，碱木质素在超临界水气化过程中，高温、高水密度(或压力)、长反应时间、低反应物浓度及适量的催化剂将更有利于碱木质素的气化。在最佳反应条件下碱木质素的气化率和碳气化率分别达到73.74%和56.34%，且制氢能力也得到明显提高。
침대감목질소난강해적특점，재간헐식반응기중，이Ru/C납미관위최화제，대감목질소재초림계수중적기화진행연구。분별탐토료감목질소재불동온도、수밀도、반응시간、반응농도、최화제량적영향，병차분석료Ru/C납미관최화제적최화효솔。통과단인소실험분석，학정료Ru/C납미관최화제최화기화감목질소적최가반응조건위，반응온도600℃、수밀도0.1284 g/cm3、반응시간60 min、반응질량분수3.0%、최화제량0.5 g/g(감목질소)。결과표명，감목질소재초림계수기화과정중，고온、고수밀도(혹압력)、장반응시간、저반응물농도급괄량적최화제장경유리우감목질소적기화。재최가반응조건하감목질소적기화솔화탄기화솔분별체도73.74%화56.34%，차제경능력야득도명현제고。
Aiming at the refractory characteristics of alkali lignin, the study on the gasification of alkali lignin in supercritical water was carried out in a batch reactor with Ru/C nanotubes as the catalyst. The effect of temperature, water density, time, concentration of the reactant, catalyst amount on the gasification of alkali lignin was discussed, as well as the catalytic efficiency of the Ru/C catalyst nanotubes. The optimum conditions of the catalytic gasification of alkali lignin on the Ru/C nanotubes obtained with single factor analysis were the reaction temperature of 600 ℃, 0. 128 4 g/cm3 water density, 60 min reaction time, 3. 0% reactant concentration, catalyst amount of 0. 5 g/g (alkali lignin). The results show that during the gasification process of alkali lignin in supercritical water, the high temperature, high water density ( or pressure ) , long reaction time, low reactant concentration and right amount of catalyst will be in favor of the gasification reaction. The alkali lignin gasification efficiency and carbon gasification efficiency reached 73 . 74% and 56 . 34% under the optimal reaction conditions, and the hydrogen production capacity was also significantly improved.