Prescott P 1000 MULTI-STAGE

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  • Multiple Stage Skid (Dual Stage Distillation and Solvent
    Recovery & Decarb)
  • Type: Continuous operation (24/7)
  • Throughput: Gear pumps Max out at 7.2L/hour

$657,050.00

Combining molecular distillation with post-processing elements, the Prescott Multi Stage is the first instrument to provide fully continuous operation of otherwise batch-to-batch processes. With seamless PLC integration, starting material will undergo solvent recovery, decarboxylation, and two subsequent distillation passes to produce pure distillate at your desired potency. This production plant effectively minimizes human error, transfer loss, and diversion with an automated system.

In an effort to deliver a true “turnkey” solution to the hemp and cannabis sector, Prescott Logic has developed a truly novel solution for cannabis processing. The Prescott MS1000 combines elements of post processing in line with molecular distillation. With seamless PLC integration, we combine the processes of solvent recovery, decarboxylation, and then 2 subsequent passes of the crude material through molecular stills. The Multi Stage is the very first instrument that provides continuous operation of otherwise batch to batch processes. This production plant effectively minimizes human error, transfer loss, and diversion with an automated process. This allows for a clean and efficient process to take the place of a typical winterization procedure, which is can be very messy and quite dangerous for the operator.

Given the high variability in the constituents of cannabis, it is important that the end user of the Multi Stage, it is still imperative that the user is highly knowledgeable of the overall process. Whereas the Multi Stage was designed for true turnkey operation, purchasers must work closely with Prescott to ensure that these 4 steps outlined below occur in steady tandem.

  1. Solvent RecoveryThe process of winterization typically is achieved by adding volumes a polar solvent like ethanol to the crude extracted oil. This mixture is then fully homogenized and placed in a freezer at -40C or lower for 24-48 hours, after which the solution is filtered to remove unwanted fats and waxes that precipitate out of solution and can be quickly filtered (sub micron pore size). Generally, 10 times the volume of ethanol is added, but some operators report success with only 5 times the volume. The selected volume of ethanol for winterization is a critical decision to ensure that this first step is handled efficiently. The goal of this step is to minimize, if not eliminate, the reliance on rotary evaporators which are effective in a slow and discontinuous fashion.

  2. Decarboxylation- In the cannabis plant, the phytocannabinoids exist in their acid form (THCa) for biological activity. For mammals, it is imperative that these molecules are first activated- that is, the carboxylic acid group (COOH) of the phytocannabinoids is released from the molecule with the introduction of heat. Of note, despite reports of therapeutic benefit from the acid forms of the cannabinoids, for the purpose of distillation the material must be fully decarboxylated. The second stage of the MS system is a heater reactor vessel under light vacuum with an overhead stirrer to maximize the exposure of molecules to activation. Some groups elect to decarboxylate the dried plant material prior to extraction to maximize their processing efficiency without a concern over terpene profiles that are dramatically altered by such a process. Prescott prefers to decarboxylate the oil as it has uniform consistency and requires ~1/10th of the energy required to do so at the front end.

  3. Pass 1 – When cannabis oil is processed with high throughput, the common approach is to perform 2 individual passes of the material with different conditions. The first pass uses lighter vacuum and less heat to vaporize the terpenes, residual ethanol, and other “lighter” molecules that would otherwise contaminate a vacuum pump. When users have only a single still, they must pass the material to remove this light fraction, then increase heat and drop vacuum for the second pass to make distillate. To eliminate the down time between passes, the Multi Stage is equipped with 2 molecular stills for each respective pass.

  4. Pass 2 – To produce cannabis or hemp distillate following the first pass, the 4th and final stage of the Prescott 1000 is set specifically for a “deep” pass under the highest heat and strongest vacuum possible without damaging the product. When placed in line with first pass, the utilization of a second still allows for continuous flow through rather than a discontinuous batch process. As such, Prescott highly recommends that users consider a dual or multi stage unit for the user to have a level of continuity rather than entertain multiple steps for losses to occur.

TECHNICAL DATA

Operating Temperature

up to 200°C

Final Pressure

standard ATM, vacuum 10-8 torr (max)

Evaporator Surface

~1000 cm2, short path

Evaporator

borosilicate glass

Feed Vessel

5000 ml, graduated

Product Receivers

end user determined

Speed Range of Stirrer

30 2000 rpm

Mains Supply

230V +/- 5V; 32A (50Hz or 60Hz available)

Dimensions (W X H X D)

~ 6.5 x 2.5 x 0.8M

Feed Range

~ 2-4L*/hour of output

*Operation dependent on parameters and proper post-processing of material

BASE SYSTEM COMPONENTS

Mobile Mounting Frame

Includes necessary holders and fastenings to accommodate all components, mounted on 4 wheels

Graduated Feed Vessel

Glass, 5000 ml; Heated by circulation thermostat liquid flow,

with complete heated inlet line, refillable during vacuum operation for continuous working mode

Solvent Recovery

Thin film solvent evaporator (10-20L/hour)*

Reactor

30L reactor with overhead stirrer and independent vacuum for decarboxylation and de-volatilization

Thin Film Short-Path Evaporator

Glass, 1000 cm2; heated inlet and outlet lines with double mantle for thermal oil heating

High Capacity Cooling Condensers (2)

Glass (borosilicate), 3.3

Wiper Driver Motor (2)

Adjustable speed up to 2000 rpm; includes driving shaft with flexible coupling and vacuum-tight lead through

Wiper Basket (2)

Stainless steel AISI 316 Ti with PTFE wipers

Sensor for High Vacuum Application

Includes integrated LCD-display; allows for application down to 10-5 torr (operating vacuum highly variable)

Sensor for Precise Vacuum Control

Allows for tight control of vacuum levels to provide consistency between baskets

Feed Dosing Pump

Complete tempered high vacuum tight pump; Allows for

transfer of sample from atmospheric conditions into vacuum pressure

Distillate Discharge Pump

Complete tempered, high vacuum tight pump; Allows for continuous take-off without limitation of receiver size

Residue Discharge Pump

Complete tempered, high vacuum tight pump; Allows for continuous take-off without limitation of receiver size

Set of Sealings

/Gaskets/Lines

Viton components

Optimized Vacuum System

Includes diffusion pump and 15m3 /h scroll pump, as well as big vacuum cold trap with 2 additional condensate receivers

Thermostat for Circulation Cooling/Heating

Allows for tempering of condenser cooling finger inside the evaporator with 600W cooling capacity, 2kw heating power,

and temperature range of -20 – 100°C

Thermostat for Short-Path Evaporator Operation

Includes high performance circulation pump, isolated tubes,

PID control, and color display; Allows for use with 2kW heating capacity and max operating temperature of 200°C

Thermostat for Heating of Feed Vessel and Inlet Lines

Allows for circulating heating, 2kW heating capacity, and operating range of 20 – 150°C

Electrical Control Cabinet

Includes full integration operating elements, vacuum controller, variable frequency drives for dosing pumps and

power distribution on all connected equipment

PLC Integration

Includes touch screen and customized operational programming

ADDITIONAL COMPONENTS

Conversion Kit

Different power supply for all local power supplies between 190V – 600V at sites other than 230V

Protective Sheathing

Side panels made of transparent polycarbonate with 2 sets of front doors

Immersion Coolers (2)

Automatic cooling of the vacuum cold trap, closed process system, temperature range down to -90°C

SYSTEM HIGHLIGHTS

PATENT PENDING HYBRID EVAPORATOR

  • Low maintenance & repair costs

  • Lowest tolerances in the market (no welding, forming)

  • Minimized clean-up & hold up from extreme compact design

HIGH CAPACITY GLASS CONDENSER

  • Maximized surface & minimized evaporator distance

  • Complete tempered & easily removed for cleaning

PRECISE VACUUM CONTROLS

  • High reproducibility in first pass

  • Prevent incondensable vapors with high capacity, oil free scroll vacuum pump

  • Double sensor system

  • Automatic safety circuit for diffusion pump control

  • Double condensate receiver system to separate light ends

  • High capacity diffusion pump (65l/s → 234m³/h) with oil level indicator

  • Supersized vacuum cold-trap for outstanding vacuum performance

  • Cold-Trap with drain nozzle for easy maintenance

  • Optional electrical immersion cooler down to -90°C (no dry ice needed)

VERTICAL DESIGN

  • Optimized product flow without hold-up in idle pumping lines

FULLY CONTINUOUS OPERATION

  • high vacuum tight and tempered gear pumps

COMPLETE TEMPERED DISCHARGE SYSTEM

  • No solidification of resultant materials

STREAMLINED CONTROL CABINET

  • Simple unit handling with UL/CSA/CE certified controls

OPTIMIZED HEAT TRANSFER

  • Maximized diameter and minimized length of heating/cooling circuit

CONDITIONS

Packing:

Wooden crate, suitable for airfreight

Delivery Time:

Approx. 12 to 16 weeks from full payment

Country of Origin:

Federal Republic of Germany

Customs Tariff No.:

841940 000

Warranty:

Warranty provided for complete system for up to 12 months from installation– restricted to those defects which do not result from natural wear and tear or inappropriate treatment

Documentation:

All necessary operating instructions to be supplied

Spare Parts:

Available within shortest time from our stock

Shipping:

Not Included

 

Specification: Prescott P 1000 MULTI-STAGE

Operating Temperature

up to 200°C

Final Pressure

standard ATM, vacuum 10-8 torr (max)

Evaporator Surface

~1000 cm2, short path

Evaporator

borosilicate glass

Feed Vessel

5000 ml, graduated

Product Receivers

end user determined

Speed Range of Stirrer

30 – 2000 rpm

Mains Supply

230V +/- 5V; 32A (50Hz or 60Hz available)

Feed Range

up to 6L/hr for light pass, 3L/hr for heavy pass*

Dimensions
Weight 2760 lbs
Dimensions 256 × 98.5 × 32 in

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