摘要
用瓦克青霉菌和铜绿假单孢菌对两种中国风化煤、一种泥炭极它们的预处理样品进行了微生物转化研究。两种微生物能很好地把ATQ ,HAQ ,HGC ,ATHG和HAP样品转化成液态产物。经过 2 3d的表面固体溶煤实验和17d的液体摇瓶溶煤实验 ,瓦克青霉菌对样品ATQ ,HAQ ,ATHG和HAP中有机部分的转化率是 10 0 %。溶煤产物与原样相比 ,醇羟基和羧基含量减少 ,酚羟基和C—O—C官能团的含量增加 ;表明微生物溶煤过程中存在着氧化水解作用及酯化作用。微生物溶煤主要是酶的作用 ,并伴随碱性物质及生物螯合作用。—COOH和—OH含量高的样品易于被微生物所溶解。
Two Chinese weathered coals, one Chinese peat and their pretreated samples were used to be bioconverted by Penicillium waksmanni(PW) and Psuedomonas aeruginosa strains. The two strains are good to bioconvert ATQ(acid-treated Qitaihe weathered coal), HAQ(alkali-treated Qitaihe weathered coal), HGC(Hegang weathered coal), ATHG(acid-treated Hegang weathered coal) and HAP(Alkali-treated Huachuang peat) samples to liquid products. The biosolubilization ratio of the organic part present in samples of ATQ , HAQ, ATHG and HAP is 100% by PW within 24 days in surface culture and 17 days in shaking flasks. The biosolubilized product has less alcoholic hydroxy and carboxylic acid groups, and more phenolic hydroxy and C-O-C groups, which may be caused by hydrolysis, oxidation, and esterification. It is the result of enzymes and accompanied effect of alkaline and biochelating materials. Biosolubilization of coal samples involves strong enzymatic activity. Sample with more -COOH and -OH has higher degree of biosolubilization.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2001年第4期305-308,共4页
Journal of Fuel Chemistry and Technology
基金
辽宁省自然科学基金&&
