Dear all,
During this turnaround we discovered that some coolers had deposits at sacrificial anodes at distribution chamber and some were consumed. Those anodes that had deposits on them didn't have any traces of deposit at the tube bundle. If anybody had an experience on having the same issue...
Dear all,
In sour water stripping unit (SWS), reboiler had issue with pores/holes in tube bundle. In General Turnaround, this year, new tube bundle has been introduced to shell and after 4 month of operation pores/holes at tube bundle appeared. Material of tube bundle is Carbon Steel. Pores are...
Dear all,
Which material will be good for tube bundles of HX:
Working parameters:
The battery of HX at NHT represents a critical area in terms of service life. Technological parameters in which these exchangers work:
- Tube bundle -gasoline ~45 bar, recovered from several process machinery +...
Hi everyone
I need advices regarding a topic that I am about to present, looking forward to have good advices from your sides. Thank you in advance.
Topic is about piping inspection programs by governmental standards. By those standards, each industry, in my case refinery, must perform...
Hi,
I need your professional point of view at choosing correct material in my situation. A problem is that piping( elbow of piping) that transfer all H2S from Amine gas feed to Claus Plant have hole due to corrosion. Piping have been installed at 2013 by NACE 0103.
Composition of flux:
H2S –...
Hi,
There are several spherical storage tanks that will have or having external corrosion due to drainage of water at summer time through fire fighting system. I suspect, operators afraid of vapor pressure increase due to heat that is why at hot summer time they irrigate all tanks. What I...
Dear all
At plant we have corrosion issue at heat exchanger. Could you please provide me some information about how to solve this issue and in case of choosing right alloy, which alloy will be best for my case.
Fluid at tubeside is: Treated water
{ 1.Cl = 114mg/l
2.pH = 7.90
3.SO = 25.43...
Hi everyone
Let me introduce you overall situation that I am encountering now and hope that there exist alternatives. At refinery, each year we have to perform Non-Destructive Test at pipelines ( near welds, at elbows,after supports and etc.). It means, that at each welds, elbows, support we...
Hi,
One of the heat exchangers at Hydrogenation of Benzene unit have high corrosion problems and every year we change tubes. Tubes are carbon steel. Temp at shell - max:90 min:15. Temp at tubes - max:70 min: 15. Fluid at shell - Benzene + H2s, in tube: treated water.
Please, can you suggest...
Hi,
There are several spherical storage tanks that will have or having external corrosion due to drainage of water at summer time through fire fighting system. I suspect, operators afraid of vapor pressure increase due to heat that is why at hot summer time they irrigate all tanks. What I...
