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Dear All, In my project currently in FEED stage, contractor has designed C3 splitter overhead condenser with maximum operating temperature of 80 deg C @ o barg. Normal operating temperature and pressure are 54 deg C (inlet) and 38 deg C (outlet)on process side. The reason being is column...

Dear All, I would like understand the differences between all three codes/standards for hazardous classification area exercise in petrochemical plant. It would be great if anyone can furnish when do we use this each std/codes. Thank you

Dear All, Anyone of you have came across with the following sulphuric acid specifications in the market: H2SO4 = 98 wt% Chlorides as Cl = <40 mg/kg Fe = <50 mg/kg NO2 = <50 mg/kg SO2 = <15 mg/kg As = <0.1 mg/kg Hg = <0.1 mg/kg Urgent reply is highly appreciated. Thanks!

Hi Ghartman, we did have the same idea. However, it was turned down due to that the CAPEX is way too high compare to typical cooling tower.

I am trying to calculate the limiting oxygen concentrations (LOC) for 2 vapour mixtures consist of propylene oxide, propylene, methanol, ethanol, propanol, ethylamine, trimethylamine, oxygen and etc based on flammability diagram. However, I also understand that the value is able to be computed...

I believe 2 rows (option A) is a better design, however the project owner is yet to response on all the facts that we have given, perhaps they are thinking a way to 'fight' back to option B, hahaha... Regardless, thanks you guys for all the valuable inputs...Cheers!

Thanks for the feedback, will try discuss with the team. Cheers.

Thanks Ghartman on the info provided. However, the suggestion by you on the 3 units in parallel are separated whilst our design is to group all 3 units parallel together (back to back). Anyhow, it seems like option B with all cells grouped together would probably need further enhancement.

Thanks ash9144, for your comment. Also, just wondering the option B will have the STARVING TOWER FOR AIR scenario since there is a row of cell in the middle of the entire unit apart from what you described earlier. In terms of maintenance and piping/nozzle layout consideration, what is your...

Dear All, I am currently involved in a mega petrochemical complex project. The overall cooling water consumption is more than 130,000 m3/h (10& margin) and the initial design is to split to users into 2 main clusters, so end up with 2 block/cooling tower in two different locations within the...