不同温度下，石油产品蒸馏出来的组合。温度不同，馏分不同。例如，在分馏石油时，温度在50℃—200℃之间得到的馏分就是汽油；温度在200℃—310℃之间得到的馏分是煤油。生物质热解气化是指利用少量的空气或氧气作气化剂, 在高温下将有机物转换为可燃气体的过程。尽管国内外在生物质气化技术方面已取得了一定进展, 但该技术目前仍存有许多技术上的问题, 尤其是燃气中的焦油可堵塞、污染和腐蚀燃气管道、燃气灶具等, 大大缩短设备的使用寿命, 使气化系统的正常运行受到限制。
馏分 [liú fèn]
misc. cutter stock ; cut fraction
专业释义
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fraction - 引用次数：25
The essential oil of Migao extracted by supercritical fluid extraction was separatedinto a number of fractions by molecular distillation(MD) and separated into severalfractions by traditional column chromatography.
对米槁精油的分离进行了研究,用分子蒸馏将精油切割为不同的馏分,探讨了分子蒸馏的数学模型。
参考来源 - 米槁精油提取与分离及其化学成分的研究distillate - 引用次数：13 参考来源 - 间歇萃取精馏新操作方式及相关应用基础研究cut fraction -
fraction - 引用次数：8
Separated by HPIEC, P450s in fraction 7 and fraction 8 are all eluted during 5’0’’-7’0’’. Compared with microsomes, purity of P450 increased up to 6.3 fold, recovery of P450 was 17.3%.
在该条件下，馏分7和馏分8中的P450均在tR=5-7min范围内洗脱出来；与微粒体比，P450纯度提高6.3倍，回收率为17.3％。
参考来源 - 棉铃虫细胞色素P450的诱导、纯化及其性质研究distillation - 引用次数：1 参考来源 - 生物质焦油及其馏分的热动力学研究 -
distillation cut
·2,447,543篇论文数据，部分数据来源于NoteExpress
双语例句原声例句
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各种溶剂油馏分一般都需要经过精制加工。
Various solvent naphtha fraction generally have to go through refining.
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这些早期的观察曾为化学馏分的结果所增补。
These early observations have been supplemented with results from chemical fractionation.
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预测中还提到，馏分油库存增加600 000桶，汽油供应减少900 000桶。
A 600, 000-barrel increase in distillate stockpiles and a 900, 000-barrel decline in gasoline supplies were also forecast.
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There are different kinds of cholesterol, and the first cut that people made at this were saying that there are things called HDL and LDL, which is high-density lipoproteins and low-density lipoproteins, the LDL.
胆固醇分为许多种,人们分离胆固醇时,最早得到的馏分是HDL和LDL,HDL即高密度脂蛋白,LDL即低密度脂蛋白
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