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I was reviewing a design of a vapor recovery unit (VRU) for recovery of gasoline vapors (VOC's) by absorbing in gasoline for one terminal. In the design, a heavy gasoline with IBP 140 C and FBP 210C has been considered. Normally gasoline available in terminal also has light ends as per the BS...

Dear All, We shall be designing a catalyst facility for wherein we shall be preparing metal salt slurries for CCR catalyst metal impregnation, which shall include different concentration of dilute HCL at 40-60 C max operating temperature. Request to please guide us in metallurgy selection for...

Dear All, Thanks for your quick reply. We already know SS 316L is not correct metallurgy for wet chloride service. However, incoloy or hastealloy shall be way to costlier for us. Any suggestion for metallurgy with equivalent cost as that of SS316L? Please note that the calciner is indirectly...

Which cheaper metallurgy as compared to SS316L shall be suitable for indirectly fired ccr calciner which operates at 600 C in wet chloride service?

Dear All, We are designing pilot scale UASB reactor to produce biogas from our canteen food waste leachate. The COD in leachate varies from 20000 mg/l to 40000 mg/l. Typically UASB reactor can go upto OLR's of 10-20 kgCOD/m3/day. 1) Does anybody have any experience what upflow velocity should...

I was designing pressurized water packed bed column for biogas purification wherein I am having the issue that the loading factor (X) as predicted in simulation is very high and falling outside the range of the generalized pressure-drop correlation (GPDC). X = L/G sqrt ( Dens G/ Dens L)...

Dear Mr.Bimr, Thanks for your reply. The recommendation is from a well known multinational company and we totally agree that it doesn't make sense. Even we think that disinfection with heat/chemicals is the best way

Dear Sir, Thanks for your reply! Our bioprocess lab is mainly working on development of enzymes, bacteria and yeasts for 2G ethanol, biogas generation etc, processes. Although, at present the microbes are not pathogenic, we may end up developing unknown pathogenic microbes while doing genetic...

Dear All, We have received recommendation from our safety vendor to install charcoal slow sand bed filtration system. The purpose of this system will be only to contain or to trap the pathogenic microbes from the bioprocess lab wastewater. Currently our bioprocess lab waste water (almost 90%) is...