期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
锚喷支护降尘防弹方法
1
作者 云明 田学起 《山东煤炭科技》 2003年第1期18-19,共2页
关键词 锚喷支护 降尘措施 防弹方法 喷枪 喷射混凝土施工工艺 喷浆机
下载PDF
Causes Leading to Formation of Shot Cokes and Measures for Its Prevention in Super Viscous Oil Delayed Coking Unit 被引量:2
2
作者 Chen Chunmao Zhang Feng +1 位作者 Yan Guangxu Guo Shaohui 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2007年第1期19-24,共6页
Shot cokes are frequently formed in the delayed coking unit treating the super viscous oil at PetroChina's Liaohe Petrochemical Company. Considerable work has been carded out to avoid the formation of shot cokes. The... Shot cokes are frequently formed in the delayed coking unit treating the super viscous oil at PetroChina's Liaohe Petrochemical Company. Considerable work has been carded out to avoid the formation of shot cokes. The test results obtained have shown that the property of super viscous oil has played a key role in the formation of shot cokes. After adjusting and optimizing the process indices the operating regime of the delayed coking unit at a throughput of 118t/h of the super viscous oil is specified as follows: a reaction temperature of 498-502℃, a reaction pressure of 0.17-0.25 MPa, a recycle ratio of 0.5-0.6 and a fractionation tower bottom temperature of 355-365 ℃. In the meantime, the delayed coking process has adopted measures to enhance pre-fractionation of the feedstock to rationally remove light fractions and maintain a steady gas velocity in order to avoid the formation of shot cokes. 展开更多
关键词 delayed coking unit super viscous oil shot cokes preventive methods
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部