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 Post subject: still on the up
PostPosted: Mon May 16, 2022 2:17 pm 
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UK diesel prices rose to a record of just over £1.80 a litre as efforts to stop importing fuel from Russia pushed up costs for retailers, the RAC said.

After the previous record of £1.79 was set in March following the Russian invasion of Ukraine, prices dipped but have risen again in recent weeks.

The RAC said petrol prices went up by nearly 3p a litre since the start of May and were £1.66 a litre on average.

It said if EU members agreed to ban Russian oil, prices could rise further.



https://www.bbc.co.uk/news/business-61463280

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 Post subject: Re: still on the up
PostPosted: Tue May 17, 2022 8:06 am 
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Russia invested in their refineries to produce diesel we didn't now we reap the whirlwind :sad:

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 Post subject: Re: still on the up
PostPosted: Tue May 17, 2022 7:20 pm 
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edders23 wrote:
Russia invested in their refineries to produce diesel we didn't now we reap the whirlwind :sad:

In ten years time not investing in diesel will be a very sound investment.

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 Post subject: Re: still on the up
PostPosted: Tue May 17, 2022 11:35 pm 
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edders23 wrote:
Russia invested in their refineries to produce diesel we didn't now we reap the whirlwind :sad:
What is the difference between a refinery that we have to others? What gets changed to produce more diesel and less petrol?

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 Post subject: Re: still on the up
PostPosted: Wed May 18, 2022 7:01 am 
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grandad wrote:
edders23 wrote:
Russia invested in their refineries to produce diesel we didn't now we reap the whirlwind :sad:
What is the difference between a refinery that we have to others? What gets changed to produce more diesel and less petrol?



our refineries were mostly built/modernised in the 60's and fitted with FCC crackers that produce more petrol than diesel and kerosene

Russias' were built in the last 30 years and equipped with Hydrocrackers which produce more kerosene and diesel than petrol

hydrocrackers hadn't been developed in the 60's

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 Post subject: Re: still on the up
PostPosted: Wed May 18, 2022 9:12 am 
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edders23 wrote:
Russia invested in their refineries to produce diesel we didn't now we reap the whirlwind :sad:


plus every Tom, Dick and Harriet thought buying a 50mpg diesel car was a good idea...

They now regret it when diesel is 50p/gallon more than petrol

(ignoring DPF, EGR, DMF, Hdi costs to replace and 10k services (3 years use for some of them))

Replace 50,000 low used petrols with 50,000 (even) low used diesels and you can see why we only produce 45 weeks worth of diesel ourselves, so not only do we import OIL, we import refined diesel

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 Post subject: Re: still on the up
PostPosted: Wed May 18, 2022 11:44 am 
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edders23 wrote:
grandad wrote:
edders23 wrote:
Russia invested in their refineries to produce diesel we didn't now we reap the whirlwind :sad:
What is the difference between a refinery that we have to others? What gets changed to produce more diesel and less petrol?



our refineries were mostly built/modernised in the 60's and fitted with FCC crackers that produce more petrol than diesel and kerosene

Russias' were built in the last 30 years and equipped with Hydrocrackers which produce more kerosene and diesel than petrol

hydrocrackers hadn't been developed in the 60's

So how much extra diesel do these plant produce? I can't find any information on this subject.

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 Post subject: Re: still on the up
PostPosted: Wed May 18, 2022 1:53 pm 
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Basically refineries use a mix of up to 20 different types of crude oil to get the right "blend" that suits their set up and every refinery is different but FCC crackers produce shorter branch chained alkenes and olefins that suit SI engines and Hydrocrackers add Hydrogen to the mix which helps produce more long chain molecules that suit CI engines

Also FCC crackers produce much more By products that are the building blocks of the plastics industry whereas Hydrocrackers produce mostly fuel

So in answer to your question Pete every refinery is different depending on the units installed but an FCC equipped refiner might typically produce about 20 to 25 percent diesel a Hydrocracker fitted one might produce nearer 40 percent diesel

BUT it depends very much on what you feed into it

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 Post subject: Re: still on the up
PostPosted: Wed May 18, 2022 3:34 pm 
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edders23 wrote:
Basically refineries use a mix of up to 20 different types of crude oil to get the right "blend" that suits their set up and every refinery is different but FCC crackers produce shorter branch chained alkenes and olefins that suit SI engines and Hydrocrackers add Hydrogen to the mix which helps produce more long chain molecules that suit CI engines

Also FCC crackers produce much more By products that are the building blocks of the plastics industry whereas Hydrocrackers produce mostly fuel

So in answer to your question Pete every refinery is different depending on the units installed but an FCC equipped refiner might typically produce about 20 to 25 percent diesel a Hydrocracker fitted one might produce nearer 40 percent diesel

BUT it depends very much on what you feed into it


Thermal or catalytic cracking, which is best?

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 Post subject: Re: still on the up
PostPosted: Wed May 18, 2022 4:49 pm 
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I recall about 15 years ago when bio-derv from rapeseed would set us free of OPEC and Russians...

Then along came Hdi/Common rail diesels


(I also recall the hole in the Ozone layer.............did it get filled in?)

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