4 replies to this topic

[shiva kumar]

1) What are the standard average refinery yields without cracking or unification process?
2) By how much does cracking increase the costs of diesel and gasoline compared to gasoline and diesel obtained without cracking?
3) Can we get figures for the relative costs of cracking, unification and alteration?
4) Diesel vs. petrol which is more environment friendly? answer this after reading this

[iyer]

Welcome to the forum
You would need to get more specific in your questions

Let me give you some general answers

1. It varies from crude to crude. I think you are referring to a crude oil assay. If that is the case the link below should help
http://www.totsa.com...=asia_-_oceania this a link that I found out.

2. Cracking, meaning Hydrocracking, coker, FCC ? which one. These are all big units with big operating, utility and catalyst costs. there are too many factors involved to give a number.

3.Could you please explain unification and alteration? Try get the technical terms like alkylation, reforming etc.

4. The link does not work

As I said you need to be more specific and clear as well as research a bit before you post a question. The more specific your question is and the more info you provide, the better answer you will receive.

Edited by iyer, 06 May 2010 - 08:01 AM.

[Padmakar Katre]

Hello Shiva Kumar,
This is a wage question unless you don't come up with certain fixed design basis. I am sure nobody in this forum can tell you the distilate yield from ADU/VDU unless they know hich crude you are going to process and it detailed assay. Again the ADU/VDU configuration i.e. what is the IBP of VR you are going to keep i.e. deep cut VDU or anything else. So to reply to your all question itself is feasibility study which takes good enough time provided all the things are finalized or simply it has a design basis.

[shiva kumar]

Welcome to the forum
You would need to get more specific in your questions

Let me give you some general answers

1. It varies from crude to crude. I think you are referring to a crude oil assay. If that is the case the link below should help
http://www.totsa.com...=asia_-_oceania this a link that I found out.

2. Cracking, meaning Hydrocracking, coker, FCC ? which one. These are all big units with big operating, utility and catalyst costs. there are too many factors involved to give a number.

3.Could you please explain unification and alteration? Try get the technical terms like alkylation, reforming etc.

4. The link does not work

As I said you need to be more specific and clear as well as research a bit before you post a question. The more specific your question is and the more info you provide, the better answer you will receive.

Hi,
Thank you. Your information was really usefull for my analysis
1) I wanted it for Brent and Oman/Dubai Sour grades, got it from the link you gave me.
2) I just wanted to know, if we deviate from the crude assay and for eg produce more of gasoline or diesel by cracking (Fluid catalytic cracking) how much is the cost of gasoline or diesel going to increase.
3) • breaking large hydrocarbons into smaller pieces (cracking)
• combining smaller pieces to make larger ones (unification)
• rearranging various pieces to make desired hydrocarbons (alteration)
4) Am attaching the document instead of the link.  diesel vs petrol.PDF   640.19KB   38 downloads Just going thro the executive summary is enough. There are so many ideas from so many people equally arguing about gasoline and diesel's environment friendliness

[shiva kumar]

Hello Shiva Kumar,
This is a wage question unless you don't come up with certain fixed design basis. I am sure nobody in this forum can tell you the distilate yield from ADU/VDU unless they know which crude you are going to process and it detailed assay. Again the ADU/VDU configuration i.e. what is the IBP of VR you are going to keep i.e. deep cut VDU or anything else. So to reply to your all question itself is feasibility study which takes good enough time provided all the things are finalized or simply it has a design basis.

Lets take the most popular crude say Brent sea crude oil and any standard refinery. Just wanted an approximation as to how much more costs would be incurred in producing more gasoline and diesel than the actual crude assay