How to turn plastic waste into diesel fuel cheaply

[Col]

sight lenses

Hi Excalibur
How are your borosilicate sight lenses holding up? I am about to order 4 for my plant.
Which O-rings proved best? Silicon, Viton or Nitrile. I would guess Viton?
Thanks
Col

[wheels]

Sorry for the red herring. I found that article I mentioned, I read it so long ago I was foggy on the details. Exposing the diesel to UV light was just to sterilise the fuel of bacteria / algae etc. No use for our purposes.

[Col]

diesel oxidation, UV light

Sorry for the red herring. I found that article I mentioned, I read it so long ago I was foggy on the details. Exposing the diesel to UV light was just to sterilise the fuel of bacteria / algae etc. No use for our purposes.

[jonathan]

gasoline oxidation

Gasoline - Wikipedia, the free encyclopedia

if you go to website under stability you find this....i dont know if it is true..


Quality gasoline should be stable almost indefinitely if stored properly[citation needed]. Such storage should be in an airtight container (to prevent oxidation or water vapors mixing) that can withstand the vapor pressure of the gasoline without venting ( to prevent the loss of the more volatile fractions) at a stable cool temperature (to reduce the excess pressure from liquid expansion, and to reduce the rate of any decomposition reactions). When gasoline is not stored correctly, gums and solids may be created, which can corrode system components and accumulate on wetted surfaces, resulting in a condition called "stale fuel". Gasoline containing ethanol is especially subject to absorbing atmospheric moisture, then forming gums, solids, or two phases (a hydrocarbon phase floating on top of a water-alcohol phase).

The presence of these degradation products in fuel tank, lines, carburetor or fuel injection components makes it harder to start the engine, or causes reduced engine performance. On resumption of regular engine use, the buildup is often eventually cleaned out by the flow of fresh gasoline. The addition of a fuel stabilizer to gasoline can extend the life of fuel that is not or cannot be stored properly. Some typical fuel stabilizers are proprietary mixtures containing mineral spirits, isopropyl alcohol, 1,2,4-trimethylbenzene,or other additives. Fuel stabilizer is commonly used for small engines, such as lawnmower and tractor engines, especially when their use is seasonal (low to no use for one or more seasons of the year). Users have been advised to keep gasoline containers more than half full and properly capped to reduce air exposure, to avoid storage at high temperatures, to run an engine for ten minutes to circulate the stabilizer through all components prior to storage, and to run the engine at intervals to purge stale fuel from the carburetor.

[wheels]

I cannot find the file but I recall reading somewhere that diesel can be stabilised using a UV light. This was not related to veg / bio fuels, it was targeted at reducing oxidation in bulk diesel tanks. Hopefully something so simple can help?!

I suspect the UV light is for killing Algae and Bacteria growth. UV won't stop oxidation. If light can cause fuel to oxidise, as excalibur has suggested, then it is possible UV could also cause oxidation.
Although I am not so sure light actually causes oxidation specifically. Only in that I can not think of a chemical reaction where light would or could react and cause a Hydrocarbon to gain an Oxygen Atom. I could be wrong on that though.
The other way around happens of course, where the rapid oxidation of the hydrocarbon (combustion) produces heat and thus light.
It could perhaps be a process where oxides darken from reaction to light, causing the fuel to darken. Just like colloidal Silver will darken when exposed to light and produce a black liquid.

[Excalibur]

According to rendered extract from Chemistry of Gum Formation by Cracked Gasoline book, potential gum gets formed by exposure to heat, light or air. Sulfuric acid treatment removes preformed gum. Inhibitors though added in small amounts are sufficient to delay gum formation for several months.

I suggest that diesel be stored cool and restrict light and air as much as is reasonably possible. I think I'm going to change the color of my tanks to off-white to reduce temperature.

Col, I hope that UV light info turns up at some stage. It could be a valuable piece of the puzzle.

[Col]

oxidation

I cannot find the file but I recall reading somewhere that diesel can be stabilised using a UV light. This was not related to veg / bio fuels, it was targeted at reducing oxidation in bulk diesel tanks. Hopefully something so simple can help?!

[Excalibur]

Hi everyone, I finally built my setup but the copper gaskets I made up didn't hold up with a simple hydro-test. I don't know what the problem is? Any ideas to help fix this problem?

Please post up some pics so we can understand why. Your description doesn't give much to go by.

By the way, I'm moving away from copper and brass in all hot parts of the plant, down to and including the diesel tank. I'm hoping this will reduce fuel oxidation.

[wheels]

Hi everyone, I finally built my setup but the copper gaskets I made up didn't hold up with a simple hydro-test. I don't know what the problem is? Any ideas to help fix this problem?

Could you post a picture? My Crystal Ball is foggy

[MangiPNG]

Hi everyone, I finally built my setup but the copper gaskets I made up didn't hold up with a simple hydro-test. I don't know what the problem is? Any ideas to help fix this problem?

[Excalibur]

Does the speed of quenching the vapor affect the quality of oil dramatically?

No but to answer more accurately I think we need more information about your plant and setup such as a detailed schematic diagram.

[wheels]

Does the speed of quenching the vapor affect the quality of oil dramatically?

No and Yes
OK so what do I mean by that.
No, the Speed has no direct influence on the Quality of a/any given Hydrocarbon type. But yes, the quality of the total output, as in producing a specific range of Hydrocarbons from the many, can be controlled by time.
In the "backyard" type processes we are playing with here, the cracking of hydrocarbons is carried out by heat. Heat causes the Hydrocarbon Chains to wriggle and shake violently and if they get hot enough, that shaking will cause them to break apart. The longer they are in the heat and shaking about, the more chance they will break again, creating even lighter chains.
So if you can cool the Vapor stream quickly at just the right time, you will reduce the production of lighter fractions. The problem though, is that we have no way of knowing what has been produced at what point in time, so cooling at any time or speed is going to be a trial and error kind of thing.
It is also why everyone gets a different output result because everyone's machine designs are different.
However, most certainly play with times and report to us on what differences you end up with.

[Renewable Rtesources]

Does the speed of quenching the vapor affect the quality of oil dramatically?

[mehmetcanural]

selam MehmetCan türkçe konuşan biri olması iyi oldu

Bir - iki direk mesaj atmak istedim ama olmadı galiba: mehmetcanural@gmail.com

[wheels]

Hello.

Is there any way to completely scrub the excess gases and turn them into water or non - flammable state as the BLEST machine claims to do? I currently just burn the excess gases but would like to just get rid of them completely. Any ideas?

Well seeing as the "off gas" as it is called, is Hydrogen and a little methane, I am surprised the Blest machine, because of it's small size, could turn them into anything non-flammable. But I don't know a great deal about the Blest Machine's operation, so I am just guessing. But I do know that Methane is very difficult to "change" into anything else, without some very difficult processes. Hydrogen can be turned into Electricity via using a Fuel Cell process, but once again, a sizable piece of equipment compared to the small size of the Blest Machine.
Burning the gas is the easiest means of eliminating them and by doing so also means that any possible nasty contaminants from the accidental addition of a wrong plastic type, should be eliminated. The exhaust Gas of combusting Hydrogen and Methane is Co2 and water. Otherwise all other processes require sophisticated equipment.