介绍了煤焦油沸腾床加氢装置的扩能改造情况。结果表明，装置产能由10万t/a扩大到30万t/a，同时加工原料的适应性及灵活性得到了显著提高，产品轻质化程度提高。该项目投资约9 200万元，投资回收期约2.5年，投资合理，见效快，对类似装置改扩建具有很大的借鉴意义。

The expansion and renovation for a certain coal tar boiling bed hydrogenation unit are introduced.The unit's capacity is expanded from 100 000 tons per year to 300 000 tons per year.At the same time,the adaptability and flexibility of processing raw materials are improved significantly and the content of light products is increased.This renovation has spent about RMB92 million,with an expecting investment recovery period of about 2.5 years.The investment is thought to be reasonable and the economic effect will realize fast.It has great reference significance for the renovation and expansion of similar units.