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In fact you have to use trap if the Re-boiler steam not totally condensed. Other wise use flush drum with level control and the vapor will be sent back to the re-boiler top. But remember that steam should enter the re-boiler near the saturation point by the means of de-supper heater otherwise...

I think no need for any calculation you have to do it by practice: first check the gas if heavier than methane then you have to use lower purging via blow down. other wise to flare or fuel gas net work. second check the line temp if its get cold then end of the purge procedure and start the...

hammering caused usually if water contact with steam. try to find the steam soure. use steam traps if necessary.

I wonder how could you have scales if your steam quality is ok! I recommend you to do the following tests: - 1- Check conductivity and Total dissolve salts (TDS) and (TSS) in your steam condensate. 2- Cl- content. 3- Basic cations If got any of those high (above 10 ppm) then you should treat...

Dear, Before dilute the H2SO4 we can add dry soda ash to decrease it concentration.the soda ash is cheap and can suppress the acid reactivity. Then you can dose the Acid Amount by 3% NaoH solution until neutralizing is completed. Abdullah

dear 0530, would you be more specific. what kind of chemicla plant do you want to design?. Also, what kind of production your going through. abdullah

Dear Ehti., There are lots of computer programming languages that can be helpful in creating simulation programs such as C++(excellent) and Fortran 77 (poor) or 90 (modified). My advice is to use a ready package to make your simulation easy and dependable. Abdullah

Dear M.Ethi Simulation and optimization programs are too expensive. They are usually work under dangle protection. So, if you’re a graduated student of Chemical Engineer. Go to Chemical Engineer section of any university. You will find such programs like HISYS (very good program). Or you can...