Hello,
We have a problem regarding the drying of compressed air using a twin tower system with purge air for regeneration. As desiccant a 13X molecular sieve is applied.
We notice an increase of oxygen in the air composition after switching from the saturated tower to the regenerated tower...
Hi all,
I have to build a new test setup for testing adsorption behaviour (kinetics, water uptake,...) of desiccant materials.
We need a conditioned air (temperature and humidity) which flows through and over the desiccant sample.
Regarding this conditioning of the air (humidity): we need a...
Hi experts,
I'm looking for composite which should fulfil following expectations:
- thermal stability (+150°C)
- strength (tensile strength +100Mpa), retain this strength at this high temperature
- retain its shape at this high temperature
Today we use PES, reinforced with 30% glass fibre...
Dear all,
We are using a desiccant rotor for drying our compressed air. This rotor is build up of glass fibre paper, impregnated silica gel to adsorb moisture. The silica gel itself also acts as a binder to hold the glass fibres together.
After some time, we see that this rotor becomes soft and...
Hi all,
I have a question regarding the saturated vapor pressures inside a compressor dryer working at 8 bar(a).
For a calculation I need to know the satured vapor pressures of water at a temperature of 150 °C. I cannot find those numbers in tables in literature. They all stop at 100°C, which...
Dear all,
I came across information from our honeycomb-supplier and didn't understand a technique he is using.
He measured the pressure drop over the honeycomb material, expressed in seconds. The only information I have, is that it is measured with a "rate of rise" tube and the supplier...
Hi all,
Some questions, I hope someone can help me!
A: Is it possible to calculate a face velocity (units ACFM) out of the mass velocity (unit SFPM) and the density of the gas? Or what else do I need?
B: If I have a mass flux with units kg/s-m2, how can I convert it to SFPM? I received a...
Dear all,
I'm looking for a technique for determining the volume (also including the inside of the flutes/channels) of honeycomb materials.
Immersing in a liquid (for example water) is not possible because this will detoriate the material.
Anyone has a good idea or has experience with this...
Dear all,
In our lab we want have an analytical balance which has a RS232 output.
Now we want to connect this balance to a PLC, that way we can also connect a pressure-measurement-signal en a temperature-signal (both 4-20mA) and measure all these parameters at once.
Is it possible to convert...
Dear all,
I have a question concerning the right choice of dessicant material for air drying.
What type of adsorption material, molecular sieves or silica gel, should be used in what type of environment. Or which dessicant is more chemically stable in acidic or base environment? And maybe...
Dear all,
I want to calculate the pressure inside a small autoclave or pressure vessel.
It has an internal volume of 2000 ml and is filled with 350 ml of water. Then it is closed, placed in a furnace and heated up to 170 degrees Celsius. A two-phase equilibrium is established inside.
How can I...
Hi,
I'm looking for good text books concerning adsorption, adsorption technology, adsorption engineering, adsorption drying, design...
The basics (what is adsorption, materials, isotherms,...) and more advanced books are welcome!
Can someone recommend me some good titles?
Thanks a lot!
Hi everyone,
I'm trying to design a distillation column which will separate acetone from methanol. It is an extractive distillation with water as entrainer.
I'm searching now for a VLE for acetone-methanol-water..without any luck..
Can someone help me please?
Thanks,
Carlo
