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dear all, does anyone has experience with the new piping systems like for example the geberit mapress system for industrial installations? thanks for the reply! kind regards

tomorrow we will do a pressure test on the stripping column to search for leaks. we will also do a second check of the ejector system, wear, steam quality,... to chief: where is the check valve installed? is it a possibility that the gas speed in the top condensor (of the stripping column) is...

a vacuum phenomena: - to give anyone an idea about the problem, in the attachemen there is a trend of our vacuum. the green line (1) is the vacuum. the scale is from 0mbara to 200mbara. the time axis is 40 hours. the purple line is the temperature of the 15°C cooling water circuit which...

last campaing we checked the convergent-divergent section and there was no risk for ice formation. now the ejector system is insulated.

the throat body of the ejector is also stainless steel. we checked this and it looked OK. thanks for the tip!

we checked the ejectors for deposits and wear but could not find something (but we do not have the original orifice diameters). also the condensors were checked for fouling. Matt, the high temperature is at the inlet of the ejector system. between our top condensor outlet there is about 20...

dear Matt, thanks for the response! we did multiple tests with our vacuum leg. We now work with a seperate 20m leg straight down from the intermediate and end condensor. so normally this could not be te problem. I will log for some time the water temperature today. but we are running with...

dear all, we have a vacuum problem in a dimethylphtalate/water-methanol stripping column. after a washing section the mixture with aprox 2% water/methanol is entering the stripping column at about 130°C. a vacuum unit (Nash) should keep the column at 50mbara using 3barg steam. we have no...

Thanks for the reply! We have time to dry the ethanol. If we could do it in a week or two it would be ok. So we don't need a big throughput system. lets say we are happy with 200liter/hour So we can use a rather small installation even batch is a possible, maybe something we construct on...

Dear all, We hava about 150m³ of ethanol with 10% water that we need to dry so we can re-use it in our process. what would be the most economic and easy way of doing this. We were thinking about a membrane system or use zeolite. Anyone has experience? Are there rental systems for this...

Dear All, We have a deposit problem in our thermal oil system (150m³) It is a two temperature system with a heat exchanger heating the oil to 170°C and a cold loop with a temperature of 70°C. Heating is with a steam shell and tube exchanger, cooling is done in a 200m² air cooler. Since long...

thanks for the help! i keep you informed about our solution (but it can take a while). thanks again, regards

Hi, We would like to replace our dP measurements for a venturi flow measurement. There are 4 measurement venturi's in a reaction zone measuring the air flow to 4 reactors. It is difficult to connect these new systems with our old DCS system. Would the following be possible? - a new dP...

I thank you all for the information and the help posted. I think there must be something in the way they measure and then calculate the "efficiency" or power consumption reduction. They compare the "local (read motor efficiency improvement)" by a local measurement of the voltage and current...

Thanks for the replies!! I can add that we have a general cos phi improvement just before the transformator, to improve the cos phi to avoid a penalty from or transmission system operator.

For the moment we do not generate or own power. With engine efficiency I meant that they claim an active power consumption reduction of 4-5% on the electrical motor. They say this is realised by the reactive power compensation and the higher voltage at the motor connection. I also contacted...

Hi, An energy study indicated that we could save 3-4% active power consumption by installing condensator banks near some of our biggest electric motors (range 35-110kWe). the local cos phi is in the range of 0.60 - 0.85. A company offerd us a capacitor banks to have a local cos phi of around...

just for everyones info, biggest problems were leaks and condensate draining of the ejector system. thanks for the help all!

we found a leak on a corroded tube between the ejectors and the top condensor. Now this leak is isolated from the column and if the column is set on a pressure of 400mbarg it drops to 318mbarg in 15 minutes. With the leak the pressure dropped from 400mbarg to 180mbarg in 15 minutes. the...

- the column is an old column and was out of service for about 2 years. We recently restarted for a 10 day campaign. Then we had troubles reaching our 60mbar in the top and saw the swings. - we see the vacuum drop on all the gauges and measurements. - the nozzles were checed for damage and...