CAJ | 학술논문

以SBA-15为载体制备了固体磷酸，将其和纤维素机械混合后进行快速热解制备左旋葡萄糖酮（LGO）。通过 Py-GC/MS（快速热解-气相色谱/质谱联用）实验，考察了催化热解温度、催化剂/纤维素比例对纤维素热解生成LGO以及其他产物的影响。实验结果表明，固体磷酸能够抑制纤维素热解形成左旋葡萄糖（LG）等产物，并大幅促进LGO的生成，从而高选择性地获得以LGO为主的热解产物。在热解温度为350℃以及催化剂/纤维素比例为1/1的条件下，可获得最高的LGO产率与相对含量，相对峰面积值高达68.6%。此外固体磷酸还能促进LG脱水形成LGO。
이SBA-15위재체제비료고체린산，장기화섬유소궤계혼합후진행쾌속열해제비좌선포도당동（LGO）。통과 Py-GC/MS（쾌속열해-기상색보/질보련용）실험，고찰료최화열해온도、최화제/섬유소비례대섬유소열해생성LGO이급기타산물적영향。실험결과표명，고체린산능구억제섬유소열해형성좌선포도당（LG）등산물，병대폭촉진LGO적생성，종이고선택성지획득이LGO위주적열해산물。재열해온도위350℃이급최화제/섬유소비례위1/1적조건하，가획득최고적LGO산솔여상대함량，상대봉면적치고체68.6%。차외고체린산환능촉진LG탈수형성LGO。
Solid phosphoric acid supported on SBA-15 carrier was mechanically mixed with the cellulose, and then the mixture was subjected to fast pyrolysis to prepare levoglucosenone (LGO). Using Py-GC/MS (pyrolysis-gas chromatography/mass spectrometry) the effect of temperature and catalyst/cellulose ratio on pyrolytic products mainly LGO was examined. The results indicated that the presence of solid phosphoric acid could inhibit formation of levoglucosan (LG) and other byproducts, but promote greatly and selective formation of LGO, one of major pyrolytic products. The maximal LGO yield and relative content were obtained at the temperature of 350℃ and the catalyst/cellulose ratio of 1/1, having the relative peak area of 68.6%. Moreover, the solid phosphoric acid would also promote the dehydration of LG to form LGO.