CAJ | 학술논문

根据纤维素、半纤维素、木质素在高温高压水中分解速度相差很大的特点，提出了一条稻壳资源化的新工艺，以便减少废弃物、最大限度地得到糖类化合物。新工艺主要包括连续水蒸汽蒸煮爆碎处理、连续近临界水处理和燃烧三步。研究了连续近临界水处理过程中温度和停留时间对液相分解产物的收率和残渣组成的影响，并得到了较优的操作条件。通过对新工艺中固形物组成变化的研究得知：水蒸汽蒸煮爆碎处理过程主要分解半纤维素，而连续近临界水处理同时水解纤维素和含硅化合物。新工艺可将约80%的碳源转化为水溶性物质，其中多聚糖和单糖的收率可达40%（wt）以上。新工艺为稻壳的全面综合利用提供了一条新途径。
근거섬유소、반섬유소、목질소재고온고압수중분해속도상차흔대적특점，제출료일조도각자원화적신공예，이편감소폐기물、최대한도지득도당류화합물。신공예주요포괄련속수증기증자폭쇄처리、련속근림계수처리화연소삼보。연구료련속근림계수처리과정중온도화정류시간대액상분해산물적수솔화잔사조성적영향，병득도료교우적조작조건。통과대신공예중고형물조성변화적연구득지：수증기증자폭쇄처리과정주요분해반섬유소，이련속근림계수처리동시수해섬유소화함규화합물。신공예가장약80%적탄원전화위수용성물질，기중다취당화단당적수솔가체40%（wt）이상。신공예위도각적전면종합이용제공료일조신도경。
A new process to resource rice hull was proposed for minimizing the wastes and getting the maximum yield of saccharide. It included three steps, i.e., continuous steam explosion step, continuous near-critical water reactions step and combustion step. The influences of temperature and residence time on the yields of water soluble products and the contents of different components in the solid residue were studied. With the optimized conditions, about 80% of the carbon in the rice hull could be converted into aqueous phase products in which the yield of oligomers and monose could be over 40%(wt). From the analyses of different components in the solid residues, hemi-cellulose was decomposed mainly in the steam explosion step while cellulose was decomposed in the near-critical water reactions step.