Survey on benzene hydrogenation process – participation rewards available
Thread Content
Regarding the crude benzene hydrogenation units built and put into operation using the Wood process, I would like to mention whether a process for removing heavy benzene has been adopted.
We use the improved process from Zhejiang Meiyang Design Institute, as well as weight-removal methods
What we do is the hydrogenation of 100,000 tons of crude benzene; I’ve forgotten where exactly it was designed. It includes a dewaxing unit, and the first step in the process is the separation of light and heavy components
Reply to 3# ableshun: Which company do you work for?
Reply to 3# ableshun: Our company is Heze Yuhuang. Do you know it?
Imported designs usually do not have this feature; the main reason is that the composition of the raw materials differs from that of domestic crude benzene. In such designs, a certain amount of Recombination d components must be present to serve as the bottom liquid level. The plants designed by the Jiaonai Institute also use the Wood process, so they typically lack this feature as well. Meiyangyuan definitely has it; he built his career on this, and when he used it for the first time in Shijiao, it was effective.
This post was last edited by Yan Xiangsi on 2012-2-3 at 14:16. We also use wood technology to process crude benzene; we have a device for removing heavy benzene in the hydrogenation unit, and its performance is fairly good, though it is greatly affected by the quality of the crude benzene
Reply to 17# ableshun: What is your capacity in 10,000 tons for benzene hydrogenation? Do you have any insights regarding liquid presence in the R101 (pre-reactor)?
Reply to 19# lll1988: Here are a few points for reference. Control the liquid level in the evaporator and the temperature of the reactor; it should not be too high. Ensure the temperature at the pre-reactor inlet, and drain liquid regularly
Reply to 20# ygd111@163.com: Could you be more specific? What should the process parameters be set at?