Dear Engineering Professionals,
I am working on improving our steam turbine reliability in Downstream (O&G). We are looking into developing a Bad Actor list so that we can work with Maintenance Engineering to resolve problems as they arise.
What would be a good definition of Bad Actor related...
Dear Engineers,
I am a Facility Engineer at a Naphtha Jet Hydrotreater producing Low sulfur diesel as the main product that goes direct to Market. The diesel quality related to cloud point is a challenge to maintain especially during winter when the spec is very low (-40 degC). We take product...
Hi Fellow Engineers,
We have several floating roof storage tanks at our refinery that we are currently using LP Nitrogen for blanketing. The reason being for process safety/fire hazard concerns. We have been using LP N2 for around 20 years with success. We are considering moving to NG...
Dear Engineers.
I need some suggestions on a Gas Oil Hydrotreater I am currently working at as process engineer. The reactors have a Ni-Mo type catalyst (fixed bed) that have prematurely come to the EOR (end of run). We have a 3-4 months to go before out shutdown and I need to ensure we...
Dear Engineers.
I need some suggestions on a Gas Oil Hydrotreater I am currently working at as process engineer. The reactors have a Ni-Mo type catalyst (fixed bed) that have prematurely come to the EOR (end of run). We have a 3-4 months to go before out shutdown and I need to ensure we product...
I am in the process of designing a relief device for a PD pump. I have 2 questions regarding the rupture disc as a relieving device for the PD pump.
1) Is the discharge from the Rupture disc allowed to go back into the pump suction?
2) The pump inlet and discharge piping is 1/2" diameter. I...
A Thermal PSV on a 4" steam condensate line lifts/pops when the condensate pump starts up. Then PSV reseats. The pump is 400kPa centrifugal pump with 40m head press max.
The PSV specs:
1. Conventional type
2. Set pressure is 1035kPa
3. Operating temp is 100 C and relieving temp is 171 C...
Dear Members,
I have a heat exchanger to heat Natural Gas (tube side) for combustion in 2 drum dryers. LP steam at 350kPa is on shell side. The NG inlet temp is 12 F and outlet is 68 F. I need to know if there is a need for a PSV (thermal case) on the tube side if the NG is blocked in. Most of...
Dear Members, I need to perform a MOC on a pressure vessel to increase the pressure relief valve setting. The new setting is below the design max design pressure of the vessel. The vessel produces CO2 during normal operation that is captured and used upstream. What parameters and equipment do I...
