I'm changing a PTFE support plate in a packed distillation column for a SS316 plate.
This plate must have the maximum possible open area to minimize capacity limitations before flooding in the column, so i must drill the maximum possible number of holes (I know that there are special designed...
I will open a small distillation column (3.000 x 300 mm) for maintenance in a few days. This column is packed with 1" Intalox Saddles (void fraction: 77%) and have a PTFE support plate with 15mm holes spaced by 4mm (free area: 41%) (there are the support beams right bellow, that block about 50%...
I have a gas stream ranging from 10 to 40 ppm of Carbon Monoxide that must be reduced to 0,08 ppm for emission (flow rates: 1.000 Nm²/h). This stream also have 10 to 40 ppm of dimethyl ether, toluene and dimethylamine.
Most of the processes for CO elimination that I checked involves...
I'm designing a new pumping system for a relatively high melting point (72°C) and viscosity (6.600 cP) through a 90m, 2 in SS316L line, with ambient temperatures that can get to -5° on some nights in the winter.
The fluid can be heated up to 100°C without any degradation. I intend to heat the...
I have highly agressive streams that causes frequent pitting corrosion problems in the piping. I would like to change it in order to extend the lines lifespan, as well as improve the process safety and reliability.
The streams ranges from basic pH (12) to highly acidic (5% HCl). An aqueous...
These are some perceptions and doubts that i have concerning a system where a runaway condition was achieved.
The most common safe stop condition in a reactor where dangerous exotermic reactions may develop is: stop the stirring and chill it down. Its kind of intuitive: if you hinder the mass...
I have a reactor with a botton valve suffering with obstruction several times a week, thanks to some heavy solids in suspension depositing over it (excess of one reagent).
The mixer is a pitched turbine with four paddles that aparently forces the bulk of the mixture towards the bottom in the...
I'm trying to find a relatively simple method for determining the concentration (up to at least 1% of accuracy) of an organic compound in methylciclohexane from a liquid-liquid extraction in order to provide standard crystallization conditions downstream (many recicle streams from one batch to...
