Tenders invited for Dry compact multi-stage roots three phase pumps with exhaust silencer for condensable vapors
This polymer is the most commonly used membrane material for separation of large condensable vapors
from permanent gases [11-13].
Pyrolysis converts organics such as biomass into three phases: solid (char), liquid (tars, condensable vapors, etc.
Three phases are produced during the thermal transformation of biomass under an inert atmosphere: gas/aerosol, liquid (tars, condensable vapors, etc.
Low wear rates for mechanical carbons require condensable vapors
in the surrounding atmosphere.
They are equipped with an assembly to purge condensable vapors
from the pump prior to shutdown, special seal material, corrosion resistant components in the exhaust box, and an exhaust flange adapter to permit remote exhausting of gases.
A purge assembly purges condensable vapors
from the pump prior to shutdown.
Chemical scroll pumps are superior to oil-sealed rotary vane pumps and other dry pumps for pumping the condensable vapors of water, organic solvents, and corrosive gases.
This gives the chemical scroll pump a tremendous advantage in pumping condensable vapors.
Although other dry pumps have no vacuum-side pump oil, grease lubricant at the bearings can capture the condensable vapors and corrosive chemicals.
The amount of condensable vapors the vacuum pump must deal with varies with the temperature of the cold head and vapor pressure and concentration of various chemicals in the frozen solution.