The Mk IVA Phoenix Terpenator

 Behold the Mk IV Phoenix, risen from the ashes of the Chimera and embracing everything that we’ve learned to this point.

This prototype has a 10″ X 12″ lower spool and a 4″ X 36″ column.  I put that size column on it for a January shoot out in Seattle, but it will accept anything from a 2″ X 24″ column up to a 4″ X 36″ column.

One of the things that we’ve learned and which has been addressed in the Mk IVA, and that is that stainless to stainless threaded fittings can be problematic, so the IVA uses welded manifolds, rather than manifolds assembled out of pipe fittings.

 It has two sight glasses to monitor what is going on, and has a thermocouple in the tank, to monitor the internal temperature during processing.


Mk IV Prototype-1-1Mk IV Prototype-1-3

15 responses to this post.

  1. Posted by Robbie cooper on December 30, 2014 at 1:30 PM

    I would like to build one of my own could you send me a parts list and were to get them by chance.


  2. Posted by andrew. on February 5, 2014 at 1:28 PM

    So Sk, I have built this model, and now am a stand still. How do correctly fill a #50 tank. I was reading through your distillation of butane process, is that the only way? I was able to pull the #50 to negative and then just tap cans and let it pull in but it only took a case of 12… How much tane will fit into a #50 tank. And is there a process layout or flow chart how to fill the #50 appropriately. Ive been hesitant experimenting cause i feel well its the most dangerous part lol. Any help would be greatly appreciated. I mean i wouldn’t of even been able to get this far without your help.


  3. Posted by Joel Reiss on January 17, 2014 at 2:42 PM

    Im looking into getting a closed loop system. I de-wax all of my butane extractions with butane. Using a single solvent de-waxing method. I was wondering is it possible to de-wax in a closed loop system? If so, how?


    • We’ve found the easiest way, is to extract at subzero temperatures, so as to not pick up plant waxes in the first place.


      • Posted by Aardvark on January 19, 2014 at 6:54 PM

        Where could we find how your process is run? Is it outlined anywhere? Just a basic flowchart or description. I have a lot of hardware I’d like to use but want to make sure I have all the components, valve and flow directions and connections. I even have a small dual-diaphragm vacuum pump and flash chromatography equipment. I just have very little application experience.



          • Posted by Aardvark on January 19, 2014 at 7:53 PM

            I appreciate your dedication and quick answer; I guess my issue is that there are so many different configurations and methods, I am unsure about some basic principles, especially temperatures and pressures, and connections between components. Butane is pretty low-pressure and I thought it should be compatible with much cheaper tubing & hoses than the refrigeration hoses being used because high pressures are not usually required. At least that’s what I was thinking from my cheap-as-possible position.

            The difference in column sizes is also very broad, from less than 2” to 4″ and larger, and I don’t know whether that is a factor of it being used to run the butane through x number of times – or some other factor. Could you please propose some general recommendations in considering column size, number of flushes and the proportion of butane used?

            Gratefully yours,


  4. Posted by 1third on December 15, 2013 at 2:00 PM

    I was wondering about the threaded fittings actually… This new model is a beauty. Why do you have sight glass on the gas lines? I’m used to only seeing these with sight glass on the extraction column.


  5. that’s is one beauty u got their !!!!thanks for keeping us informed and thanks for all u do


  6. […] The Mk IVA Phoenix Terpenator. […]


  7. Posted by Aardvark on December 7, 2013 at 3:06 PM

    Beautiful layout! I thought I saw 8 valve handles in the first photo, but only saw 7 in the second. I would love to see a block diagram of this setup.



    • Sorry no diagrams yet, but a good idea!

      It has 7 valves. Three 1/2″ recovery pump ports (one on the column’s conical reducer), one 1/4″ vacuum pump port, a 1/2″ vent valve, a 2″ dump valve, and a 3/8″ flood valve.


      • Posted by Aardvark on January 20, 2014 at 12:41 PM

        Can I get by with a vacuum pump and w/o a liquid recovery pump? I was hoping to use hot/cold baths to condensate/flash the butane from component to component using the valves.



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