PRODUCT CONNTROL OF LIQUIDIZED PYROLYZATES FROM FOREST RESIDUES IN THERMOCHEMOLYSIS

对热化学裂解产物进行了以下检查。(1)常规热解与热化学分解热解产物热量的比较。(2)通过酶解法制备聚合物。在(1)中，采用GC/MS对常规热解和热化学裂解产物进行结构分析。GC-FID对各热解产物含量进行定量分析。此外，还计算了每种热解产物的燃烧能量。结果表明，与传统的400、500和600℃热解相比，四丁基氢氧化铵热化学热解的燃烧能提高90 ~ 120 J/g。考虑到每一种热解产物，例如，桉树树皮样品用四丁基氢氧化铵热化学分解得到的3,4,5-三羟基苯甲酸丁酯，与常规热解得到的3,4,5-三羟基苯甲酸相比，燃烧能量增加了约16 kJ/g。在(2)中，部分热解产物在含马萝卜过氧化物酶的甲醇和磷酸缓冲溶液的有机溶剂/缓冲溶液中聚合。通过SEC测得的平均分子量为2000 - 3000，部分聚合物分子量约为18000。在热解仪的研制中，该体系基本得到了证实。新仪器的优点如下。(1)减少记忆效应，通过减少热解管中残留的热解产物对后续样品造成污染，从而提高再现性；(2)自动化。

On pyrolyzates by thermochemolysis, the followings were examined. (1) Comparison in calorie of pyrolyzates by conventional pyrolysis to by thermochemolysis. (2) Polymer was prepared by pyrolyzates with enzymes. In (1), the pyrolyzates by conventional pyrolysis or thermochemolysis were analyzed by GC/MS to determine their structures. Furthermore, each pyrolyzate content was quantified by GC-FID. Moreover, estimated combustion energy was calculated for each pyrolyzates. As a result, combustion energy was increased in 90-120 J/g by thermochemolysis with tetrabutylammoniumhydroxide compared to conventional pyrolysis at 400, 500 and 600℃ for acacia bark sample. Considered by each pyrolyzates, for example, 3,4,5-tributoxy benzoic acid butyl ester obtained by thermochemolysis with tetrabutylammoniumhydroxide for eucalypt bark sample showed about 16 kJ/g increase in combustion energy compared to the corresponding 3,4,5-trihydroxy benzoic acid obtained by conventional pyrolysis. In (2), part of pyrolyzates were polymerized in organic solvent/buffer solution mixture of methanol and phosphoric acid buffer solution with horse radish peroxidase. As a result, the average molecular weight was measured as 2,000-3,000 and part of polymer was about 18,000 by SEC. In the development of thermochemolysis instrument, the system was almost confirmed. The advantages of new instrument were as follows. (1)Reduction of memory effect which will give higher reproducibility by the reduction of remaining pyrolyzates in pyrolysis tube causing contamination in the following sample, and (2)automation.