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Thank you That’s right, but our feed water quality isn’t troubling now (Conduct:6~7). However the feed water quality was very worrying 4 years ago. Since we use dispersant based on inorganic phosphates, the deposits is soft and non- adherent. what is our problem? Thank you for your attention

Thank you The analysis of deposit follow as: Cao: 31.8 wt% P2O5: 20.3 wt% Fe2O3: 33.6 wt% SiO2:5.6 wt% MgO: 5.2 wt% Best regards

Thank you Metengr I wish I could show you a few images of the boiler.

Could someone please explain When the industrial boiler should be applied chemical cleaning? Regards

Thank you so much Is there any idea? Regards

Thank you It is good idea, but it is very costly. is there any Commodious ideas? Is any coat used? Do you know suitable coat? Regards

Thank you I want to get the accurate amount. But it is suitable,too. what material do you suggest to use in economizer where condensate of H2SO4 occur?

Thank you I read this article exactly. In the first page, there is a diagram need amount of SO3 and H2o, but it is impossible to measured amount of So3 for me. Is there any way for calculate dew point of H2SO4? Regards

Thank you gr2vessels That's right. so, I Don't need amount of So3??? I found a diagram for dew point of H2SO4, but this needs amount of H2O and So3. Thank you again

Hi guys I want to calculate dew point of H2SO4 in the duct of boiler but I have just amount of So2, Co, Co2, O2. Is it possible to calculate dew point? Thank you

Thank you very much Your opinion is completely right. Our chemical process is very variety. for example, according to design, a thickness of pipe is 5mm and corrosion allowance is 1.5mm. At first UT inspection that apply 4 years after start of process, the thickness of pipe is measured 4mm. Does...

Thank you Cloa that's right. I administer the UT inspection for piping of chemical procedure, so I want to know how many months or years must be period of inspector? regards

Hi dears Let me know what are the effective factors to determine the real- time of corrosion monitoring? Is there any standard for this purpose?

THANK YOU TomDOT

Thank you guys

Hi guys I know marine paint uses for water tanks a lot. This is a commercial name and I want to know scientific name. thank you

thank you guys what kind of paint do you suggest? Is marine paint suitable? external wall don't have major corrosion. thank you

Hi guys Water tank is made of carbon steel and is put on the ground. this water go to osmosis stage to purify for boiler water. thank you so much

what kind of coating is suitable for internal wall of water tank? TDS= 30 pH:6.5 T= 25 oc

temperature:ambient temperaturere conduct of water: 62 pH: 7.2 flow rate: 200 m3/h