中文摘要：

采用Ni-W/γ-Al2O3型催化剂,利用固定床反应器对煤直接液化油进行催化加氢改质,研究了反应温度和氢压对烃类液体和气体产物分布的影响.结果表明：随着反应温度的升高,液态烃类产物中芳烃和烷烃组分的含量（质量分数）增加,当温度高于500℃时,裂化反应加剧,甲烷和乙烷气体含量（体积分数）急剧增加;随着反应压力的升高,氢化芳烃的含量增加,但高于4 MPa后,增加趋势变缓,甲烷气体含量随着压力升高而增加,其他气体含量受压力影响微弱.300℃,4 MPa条件下加氢液体产物中轻馏分油含量由加氢前的11%提高到17%;催化剂的HDN（加氢脱氮）、HDS（加氢脱硫）和HDO（加氢脱氧）活性分别为35.56%,72.73%和24.20%,n（H）∶n（C）由1.37提高到1.52.

英文摘要：

The catalytic hydrogenation experiment on direct coal liquefaction （DCL） oil was carried out in a fixed-bed reactor using Ni-W/7-A1203 catalyst, which aims to investigate the effects of reaction temperature and hydrogen pressure on the distribution of gas and liquid products. The results showed that the contents of hydroaromatics and alkanes increased with the raising of temperature. When the temperature was over 500℃, methane and ethane contents in- creased sharply which indicated drastic crack reaction occurred under the condition. The hydroar- omatics increased with increasing reaction pressure, while the increase was alleviated when the pressure was over 4 MPa. The methane content increased with higher pressure. The analysis of distillates and elements of the feed oil and liquid products （300 ℃, 4 MPa） indicated that the vol- ume fraction of light oil increased from 11% to 17%; the catalyst activities of HDN, HDS and HDO were 35.56%, 72. 73% and 24.20%, respectively. The n（H） ： n（C） in the liquid oil was increased from 1.37 to 1.52.