Liquid carryover issue in light hydrocarbon recovery dry gas
Thread Content
The dry gas at the top of the reabsorption tower in the light hydrocarbon recovery unit contains liquid; please suggest measures to address this issue
Strengthen the dry gas liquid separation wash liquid to enable optimized operation of upstream units
Are there any specific operating procedures?
Improve absorption efficiency by controlling the C3 content in dry gas
The presence of liquid in the dry gas stream at the top of the reabsorption tower in the light hydrocarbon recovery unit indicates that the operating conditions are very unstable. To address the issue of liquid entrainment in the dry gas stream at the top of the reabsorption tower in light hydrocarbon recovery units, it is recommended to install a high-efficiency air-liquid demisting and defoaming element inside the tower, in front of the dry gas outlet pipe at the top. This element is compact, offers high separation efficiency, provides ample operational flexibility, requires no maintenance, and is easy to install. In recent years, efficient air-liquid demisting and defoaming internals in the form of vanes have been installed on the inner sides of the tops of absorbers, regenerators, scrubbers, distillation columns, flash towers, and stripping towers. For information on the high-efficiency gas-liquid demisting and defoaming separation internals for feather-shaped vanes, please visit http://bbs.hcbbs.com/thread-1354814-1-1.html. You can also contact the NOVEL Beijing office directly for inquiries.
A high-efficiency gas-liquid separator will suffice
The addition of a cooler and a liquid separation tank before dry gas desulfurization yields significant benefits; in our case, the liquid in the dry gas liquid separation tank needs to be drained every three to four days