secondary yield

  • 释义

    次级产额

数据更新时间:2026-08-22 10:42:35
1、

The tar yield increased with increase of temperature and maximized at about 27% of lignin at 550 ℃. Beyond this temperature tar yield decreased while more uncondensable gas was produced due to secondary decomposition.

焦油产量随温度升高而增大,在550℃出现质量分数为27%的最大产量,温度进一步升高,部分挥发分的二次裂解使焦油产量降低而轻质气体产量大大增加;

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2、

The secondary butylamine synthesizing process has low cost and high yield.

采用本发明的合成方法生产仲丁胺,成本低、收率高.

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3、

The chiral HMPA analogues 1 and 2 were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.

以磷酰氯为原料通过与手性仲胺的亲核取代反应高产率地合成了手性HMPA类似物。

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4、

The yield difference between ravine rainforest and secondary forest was not significant.

沟谷雨林和次生林下阳春砂仁果实产量差异不显著.

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5、

The results show that the yield of xylan pyrolysis tar product increases with rising reacting temperature, but decreases with rising temperature after approaching a maximum value caused by the secondary decomposition of tar.

试验结果表明,木聚糖热解生成的焦油产率随温度升高而增加,达到最大值后随着温度的继续升高,焦油发生二次裂解使产率降低;

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