Hi,
I wish to check if there was sufficient backflow protection in the mercaptan injection facilities to a LPG header. Diaphragm pumps are used for the service and each line has 2 dissimilar NRVs at present.
The reason I am reviewing this is that there was an incident where an operations staff...
Hi,
We have three 73000 MT floating roof crude oil tanks at site. About 2 months ago, the polyflow tubes along the roof guard plates failed, but no fire was detected. The tank dip is taken by an independant surveyor, so our own staff rarely go up on the roof, except on this ocassion to...
Hi,
I am trying to come up with an estimate for the steam losses in my plant through the numerous passing steam trap bypass valves and some leaking (corroded)steam tracing lines. Is there a quick formula that can be used based on the pressure of steam, the size of the opening/hole/bypass line...
Has anyone tried using the ammonia reaction available in the HYSYS library? I was wondering how accurate it is for a HTAS 200 series 2 radial bed converter. Any tweaks that make the simulation better? For one, I have trouble esitmating the split of flow between the inlet and the quench of the...
Just to get a feel of what is being used out there, which is more common for this purpose: rubber lined tanks or PTFE lined tanks? The solution is of 11% concentration when freshly delivered. We have occasional plugging of the dosing lines with a black substance which we suspect is the rubber...
Dear all,
I was wondering if anyone has experienced similar trouble with foaming in their CO2 removal unit. We are having to add a substantial amount of antifoam every shift to combat the problem. We have opted to install an activated carbon sidestream filter to remove hydrocarbons from system...
