焦油产率系随着不同时代褐煤挥发分产率的增多而增加。
Tar yield increases with the increase of volatile matter yield of brown coal in different ages.
煤的干馏气和焦油产率与煤中可燃基挥发分之间有近似的线性关系。
It is also found that there is an approximate linear correlation between the yields of gas and tar of coal and the volatile matter of coal on dry, ash-free basis.
结果表明，石灰石的加入降低了焦油产率，提高了煤气产率，改善了煤气质量。
The experimental results proved that with the input of the limestone the yield of tar decreased and the yield of gas increased and the quality of the gas was also improved.
为降低煤在热解过程中的焦油产率，在一流化床稀相段考察了温度和停留时间对焦油裂解的影响。
The effects of temperature and residence time on tar cracking in the freeboard of a fluidized bed have been investigated in order to reduce the tar produced in the pyrolysis process of coal.
在以循环床锅炉循环灰为热载体、部分气化产生的半焦为锅炉燃料的煤的部分气化技术中，循环灰中的氧化钙对降低焦油产率、提高煤气产率是有利的。
Calcium oxide in circulating ash is favorable to decrease the yield of tar and increase the yield of gas in partial coal gasification process with the circulating fluidized bed technology.
实验结果表明：煤焦油延迟焦化可以得到较高的燃料油产率，较低的蜡油产率和较好的产品分布。
The experimental results show: delayed coking for coal tar can obtain higher fuel oil yield, lower wax oil yield and better products distribution.
实验结果表明，焦油和焦炭的产率随着废塑料添加比例的增加而增大，粗苯和氨等产率变化不明显。
The experimental results show that the yields of tar and coke are increased with the increment of adding proportion on plastics, there is no remarkable variation on crude benzol and ammonia yields.
实验结果表明，焦油和焦炭的产率随着废塑料添加比例的增加而增大，粗苯和氨等产率变化不明显。
The experimental results show that the yields of tar and coke are increased with the increment of adding proportion on plastics, there is no remarkable variation on crude benzol and ammonia yields.
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