tar paper

Therefore, based on the least squares support vector machine theory, this paper proposes a model for catalytic cracking of tar removal straw gasification, and verifies the feasibility of the model.

因此本文依据最小二乘支持向量机理论建立了秸秆气化焦油催化裂解脱除过程的模型，并验证了模型可行性。

A research discussion was made on the briquetting pressure, ratio of anthracite coal, lean coal and coke powder, quantity of residuum of modified coal tar oil, coal particle size and other main influenced factors. The paper set up the optimized technique conditions.

对成型压力、无烟煤、瘦煤和焦粉的配合比、改性焦油洗油残渣用量和煤料粒度等主要影响因素进行了探讨，确定了最佳工艺条件。

This paper introduces the process of absorbing benzene from coal gas by tar wash oil in coking plants. The main cause of low yield of the crude benzene is that the distillation range of the recycled wash oil is too low before 270 ° C.

介绍了焦化厂焦油洗油吸收煤气中苯的工艺流程，分析了造成粗苯产量低的主要原因是循环洗油270℃前馏程偏低。

In this paper, the fusel was added in bituminous pyrolysis for the first time. The pyrolysis of shenmu bituminous coal was investigated on a fixed-bed reactor. We hoped to improve the situation that the coal tar yield of the traditional pyrolysis process was low.

本文首次将杂醇引入煤热解中，利用固定床热解装置对神木烟煤进行研究，希望改善传统热解工艺焦油产率较低的状况。

The phenol, belongs to aromatic compound with high toxic and recalcitrant to degradation, is the raw or middle materials during the fields of paper-making, tar and oil factory.

苯酚是造纸、炼焦、炼油等行业生产的原材料或中间体，它属于芳香族化合物，毒性强且较难降解。

The pit cover should be sealed over with tar paper or plastic.

顶盖必须用焦油纸或塑料封闭.