摘要
以一套2.0 Mt/a柴油加氢精制装置改造为例,采用MHUG-Ⅱ改质工艺改造后处理量提高到2.48 Mt/a,对原装置反应部分换热流程进行了优化,原4台高压换热器利旧,同时新增4台高压换热器和1台新氢压缩机,采用两开一备方案。循环氢压缩机采用异地新建方案,原循环氢压缩机位置布置新氢压缩机,同时新增循环氢脱硫系统。对改造前后能耗对比及投资分析表明,采用MHUG-Ⅱ工艺对原加氢精制装置改造后,通过优化设计,使用较少的投资、较短的工期实现了对催化柴油改质、柴油质量升级的目标,装置能耗明显下降,效益显著,为柴油加氢质量升级工程化提供了一种新的思路。
A 2.0 MM TPY diesel hydrotreating unit is revamped with MHUG-Ⅱ hydro-upgrading process. After revamping, the unit capacity is increased to 2.48 MM TPY. In the revamping, the existing heat exchange train of the reactor section has been optimized. The 4 existing HP heat exchanger are utilized and other 4 new HP heat exchangers are added. A new make-up hydrogen compressor is installed so that two com- pressors are in operation and one is in stand-by. A new recycle hydrogen compressor is provided in a new plot area, and a new recycle hydrogen desulfurization system is installed. The comparison of energy consumptions and economic analysis before and after revamping show that, after revamping with MHUG-Ⅱ process and de- sign optimization, the upgraded diesel has met the desired specifications. The energy consumption is greatly reduced as compared with other diesel hydro-upgrading units, and economic benefit is significant. A new process has been available for upgrading diesel.
出处
《炼油技术与工程》
CAS
2013年第1期46-50,共5页
Petroleum Refinery Engineering
关键词
MHUG-Ⅱ工艺
改造
投资
能耗
柴油质量升级
MHUG-Ⅱ process, revamping, investment, energy consumption, diesel upgrading
