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SKU PMP-001-001
Perpetual Motion Pumps (PMP)
PMP The Prophet Recovery Pump
$17,999.00
In stockRecovery pump rated at 4.49 lb/min of butane at 0 psi inlet and 8.97 lb/min at 15 psi, with published throughput down to −13 psi inlet vacuum.
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Description
The Prophet is the industries largest and fastest LPG butane recovery pump.
These mammoth PMP pumps at 28 cfm (3.33x the size of a Corken T91) while running quietly at only 68db.
Unlike the other recovery pumps available on the market this pump features a dual stage design which allows for greater delta pressure between the inlet and outlet of the pump This allows for higher output pressures (propane) and lower inlet pressures (vacuum).
The ability to pull vacuum against the inlet lowers the boiling point of the recovering solvents allowing them to vaporize faster, speeding up your recovery times.
In addition, this pump can be used to pull initial vacuum in the extraction system.
Recovery Rate
Many factors go into the rate of recovery on an extraction system. Not only is the pump size important, but also the evaporation rate of the solvents. If the solvents aren’t able to evaporate fast enough there will be nothing for the pump to transfer. Larger pumps have the capacity to transfer solvents faster, but only if the solvents are in an evaporated state. Because these pumps are so large they have a tendency to outpace the evaporation rate of most extraction systems. This lowers the inlet pressure (and the collection vessel pressures) which aids in speeding up the evaporation rate. Propane weighs less per gallon than butane (4.2 vs 4.9), however the vapor pressure is higher which generally results in a higher inlet pressure, and therefor a faster recovery per pound of gas used. These pumps are sized large enough to recover on the largest extraction systems with the highest evaporation rates, or can be used on multiple extraction systems at one time. For example this pump was used to recover 5lbs of butane on a 6” vessel with 70° of temperature. The process took ~12 minutes. However increasing the process to 3x 6” vessels with 5lbs of butane each(15lbs total), the process also took ~12 minutes. This is because the pump exceeds the evaporation rate of a single 6” column at 70° by more than 3x. Because the pump exceeds the evaporation rate a vacuum is pulled against the collection vessel, which in turn speeds up the evaporation rate. However once vacuum equilibrium is achieved, increasing the pump size will not speed up the process, but will allow for larger (or multiple) processes to be preformed in the same time frame. The next tab shows a table of recovery capacity with regards to inlet pressures. Higher inlet pressures result in substantially faster recovery times. Higher inlet pressures can be achieved by evaporating solvents faster by higher temperatures in collection vessels, or more surface area in collection vessels (larger diameter vessels, falling flim, etc).
*Instruction Manual*
Description
28CFM
Dual Stage
10HP
220V – 3 Phase (Single Phase Inverters Available)
Inlet: 1.5” Triclamp
Outlet: 1.5” Triclamp
Wight: 865lbs
Max bearing pressure: 250psi
Max discharge pressure: 150psi
Max delta pressure: 10x
Inlet Pressure
LBS per Minute Butane
LBS per Minute Propane
-13 psi (Vacuum)
.56
0.41
-10 psi (Vacuum)
1.12
0.81
-7 psi (Vacuum)
2.24
1.63
-4 psi (Vacuum)
3.36
2.44
0 psi
4.49
3.26
15 psi
8.97
6.52
Frequently asked questions
What is the butane throughput across the inlet pressure range?+
0.56 lb/min at −13 psi, 1.12 at −10 psi, 2.24 at −7 psi, 3.36 at −4 psi, 4.49 at 0 psi and 8.97 lb/min at 15 psi.
What is the propane throughput?+
0.41 lb/min at −13 psi, 0.81 at −10 psi, 1.63 at −7 psi, 2.44 at −4 psi, 3.26 at 0 psi and 6.52 lb/min at 15 psi.
Does throughput depend on inlet pressure?+
Substantially. Butane throughput falls from 8.97 lb/min at 15 psi to 0.56 lb/min at −13 psi of inlet vacuum — a factor of sixteen — so size against the inlet pressure you will actually run at, not the peak figure.
What is the part number?+
PMP-001-001.
Are other performance figures published?+
The supplied product data contains only the butane and propane throughput table above. No motor rating, pressure limit, port size or duty cycle is recorded, so request those from the manufacturer if they matter to your specification.
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