Biopowered - vegetable oil and biodiesel forum

Biodiesel => Chemistry and process => Topic started by: dgs on September 22, 2019, 09:39:31 AM

Title: New technique for producing Bio for motors with DPF's
Post by: dgs on September 22, 2019, 09:39:31 AM
https://news.rub.de/english/press-releases/2017-06-19-innovative-technique-researchers-produce-biofuel-conventional-diesel-engines
Title: Re: New technique for producing Bio for motors with DPF's
Post by: Julian on September 22, 2019, 01:34:02 PM
Interesting to see they have discovered a way of making bio at low temperatures … I think they must have been reading some of your posts!
Title: Re: New technique for producing Bio for motors with DPF's
Post by: dgs on September 22, 2019, 04:25:20 PM
Quote from: Julian on September 22, 2019, 01:34:02 PM
Interesting to see they have discovered a way of making bio at low temperatures … I think they must have been reading some of your posts!

I wouldn't surprise me, the World has been stealing UK innovations for years!
Title: Re: New technique for producing Bio for motors with DPF's
Post by: Dickjotec on September 22, 2019, 06:26:34 PM
How soon can we copy them? I suspect it won’t be possible without very special kit.
Title: Re: New technique for producing Bio for motors with DPF's
Post by: Mark2256 on February 20, 2020, 03:20:51 PM
Hi All

I have been running my 2006 Citroen C5 1.6 HDI on b100 now for about 6months with no problems. All I do is add 60mls per 100ltr  batch of Cetane booster to it plus an anti gelling agent and injector cleaner. I regually check my car with my Lexa diagnostic equipment and the DPF is clear (on regular diesel it use to be about 30% blocked). So yet more BS to try stopping us from making our own Biodiesel to my mind.
Title: Re: New technique for producing Bio for motors with DPF's
Post by: Tony on February 20, 2020, 07:51:12 PM
I wonder how they make the hydrocarbon chains shorter?
Steam cracking?
Title: Re: New technique for producing Bio for motors with DPF's
Post by: Bill on February 21, 2020, 08:08:37 AM
it says little energy input and uses a catalyst. I think this is the detailed article if you want some self inflicted brain ache.

https://advances.sciencemag.org/content/3/6/e1602624

Can't see this being a home brew thing just yet.
Title: Re: New technique for producing Bio for motors with DPF's
Post by: Jamesrl on February 22, 2020, 01:57:16 PM
Quote from: Tony on February 20, 2020, 07:51:12 PM
I wonder how they make the hydrocarbon chains shorter?
Steam cracking?

Nano tech. Little robots with even smaller scissors, obvious innit.
Title: Re: New technique for producing Bio for motors with DPF's
Post by: countrypaul on February 26, 2020, 12:24:11 PM
Quote from: Tony on February 20, 2020, 07:51:12 PM
I wonder how they make the hydrocarbon chains shorter?
Steam cracking?

Seems to me that they are "breaking the chains" at the double bonds and combining with "half an ethylene" so creating two molcules that are both significantly smaller than the original FAME.

Something like:  R1-CH=CH-R2 + CH2=CH2  --> R1-CH=CH2 + CH2=CH-R2  where R1 and R2 are the chains either side of the unsaturation, and R1 and R2 could also contain further unsaturation which could react further. Oleic is mono unsaturated, whereas Linoleic is doubly unsaturated and Linolenic is tripply unsaturated).

I didn't read all the detail.