http://www.met.police.uk/campaigns/counter_terrorism_publicity/index.htm

[julian]

If you live in a block of flats...

...TERRORIST!

[les diamond]

if you live in apartments, store boxes or drive a white van you are a terrorist! FACT!

[julian]

Ive got one of these in the shed -




....go straight to guantanamo, do not pass go, do not collect £200!

[bigus]

Originally Posted by julian

Ive got one of these in the shed -




....go straight to guantanamo, do not pass go, do not collect £200!

what is that a moonshine distiller?

[thembuzz]

i use mine for dissolving corpses

[julian]

Originally Posted by bigus

what is that a moonshine distiller?

Nahh... Rather like the mk2 DeLorean, both my cars run on kitchen waste, but i need to mess about with the molecules a little before theyre good for the engines. The device above is actually a reactor (changes molecular structures), rather than just a still (which sepperates compounds from one another).

...but, in one phase of the process, it is used as a still though, although if you were seperating off ethanol from high water content mash, you would want a reflux colum of some sort too, i suspect.

[julian]

Originally Posted by thembuzz

i use mine for dissolving corpses

People, i believe, use lye, for corpse disposal. The process above is (part) catlysed by about 2kg of NaOh (lye).

I think you would probably have to run them through a grinder first though, else you would never get them through the 22mm pipework.

[Yer_Maw]

Originally Posted by julian

The device above is actually a reactor (changes molecular structures), rather than just a still (which sepperates compounds from one another).

Whats the reaction? Im interested (and pretty decent with organic chemistry)

[julian]

Its simple stuff - vegetable oil is a triglyceride, so a glycerol molecule with three side chains.

Methyl-esters are what you want for most, umodified, diesel engines, so you cleave off the side chains, and methylate them.

So -

Tri-glyceride + methanol >> glycerol + methylesters

The reaction requires a catalyst though, so you have other stuff going on with NaOh - the naoh is disolved in the methanol, giving sodium methylate, and, unfortunatly, water.

The water goes on to mess things up a bit, as water + sodium hudroxide + triglycerides give soaps.

If you were to use pure sodium methylat you wouldnt have this issue, but it costs loads more, so its not economic - better to just accept the by-product.

There's another one going on as well, but im not as sure on the actual chemistry of this one -

The feedstock can have varying free fatty acid content, which reacts again with the catalyst, and screws with the figures. So, for every different batch, you need to run a quick titration to assess the FFA content of the feedstock, and the 'catalyst' content is adjusted accordingly.

[soulcheck]

i was expecting mdma synthesis or something.

well disappointing julian.

[thembuzz]

Originally Posted by julian

People, i believe, use lye, for corpse disposal. The process above is (part) catlysed by about 2kg of NaOh (lye).

I think you would probably have to run them through a grinder first though, else you would never get them through the 22mm pipework.

hey, thanks for the tip!