Gas jar and cylinder , Orion #3

A gas jar is part of the plan to capture excess gases over and above turk burner demand. The gases must be stored at or near atmospheric pressure to avoid undesirable back pressure on the retort because it raises the boiling point.

3Aug2013 I found a redundant LPG cylinder which I'm planning to use for gas storage. A Thomas WOB-L pump will be used for filling the cylinder at modest pressure. Safety is paramount so I'm excluding oxygen and monitoring temperature. The plan is to run the diesel condenser vessel at 90'c and pump all vapors that exit into the cylinder with a gas jar as a 'flexible fluctuation reserve'. As this gas jar fills, a level switch will start the pump to evacuate the gas again resetting when empty.
The compressed hydrocarbon mixture may be liquid but turn to gas when exposed to a 100'c water heat exchanger for firing the turk burner on demand. Note: untested theory.
22May2014 I've completed the revised gasjar which has over double the capacity of the earlier one. (Moved to: redundant archives page). Plastic drums are chosen for a rustfree lifespan.
The unit is in the shade so the sun doesn't attack the plastic over time. The blue drums are placed with the right side marginally higher so the internal space can be used more effectively. On the left is the stainless water receiver. Only the upper half with hold the water. The lower part is simply a stand to get the correct working height.

Twin gas receiver vessels used for temporary storage. When there is no gas these are full with water.
Gas goes in at the top right.
 This pic shows how the vessels are connected.
This shot looks into the stainless vessel. The plastic 20L container floats and gives a visual indicator of how high the water level is. More water height here means more gas in the two blue gas receivers.

 This Gasjar works on a displaced water principle and will add less than 1 PSI head to the vapor stream and retort.