4 replies to this topic

Dear All,

At present we are processing low TAN crude oil in our refinery. To increase the profitability, we are planning to implement cure oil blending facility of high TAN & low TAN in cure oil basket. In this connection, I’m interested to know whether the operation is satisfactory in a refinery of capacity around 10 MMTPA. How much cost is involved to implement the same? Whether simple in-line blending with analyzer or any catalytic (proprietary/ non-proprietary ) process is involved like decarboxylation and what will be the % conversion? Forwarding any paper or reference will be highly appreciated retaled to the topic.

Thanks & regards,

[satya1911]

Dear All,

At present we are processing low TAN crude oil in our refinery. To increase the profitability, we are planning to implement cure oil blending facility of high TAN & low TAN in cure oil basket. In this connection, I’m interested to know whether the operation is satisfactory in a refinery of capacity around 10 MMTPA. How much cost is involved to implement the same? Whether simple in-line blending with analyzer or any catalytic (proprietary/ non-proprietary ) process is involved like decarboxylation and what will be the % conversion? Forwarding any paper or reference will be highly appreciated retaled to the topic.

Thanks & regards,

Please let me know if you got any data on this??

[JMW]

You could take a look at inline blenders from Jiksoot, part of Cameron these days.
http://www.jiskoot.com/Blending

[herrani]

Hi spse

I think that the scope of your question is a little broad. I am not a corrosion expert, but I have been involved in similar evaluations in our refineries, and you need quite some evaluations before you can run high TAN crudes.

The first step should be to evaluate the operating window of all your units, with repect to TAN, metals content, and other relevant parameters. Once you know that, you can evaluate how much of the new high TAN crude can you blend in the feed of the refinery.

How you mix the different crudes depends on the type of tanks and the conditions at which you are storing the feed. We do use different crude types at different feed percentages, and have no blending facilities.

After these considerations, if you want to run more of the high TAN crude than the present configuration allows you, you have to see where are the bottlenecks and find measures to remove them. One option could be to just add corrosion inhibitors in the most problematic areas.

You can see the below link from the Oil&Gas journal with a discussion on the topic.

http://www.ogj.com/i...nic-crudes.html

Hope this helps!

[Padmakar Katre]

Dear All,

At present we are processing low TAN crude oil in our refinery. To increase the profitability, we are planning to implement cure oil blending facility of high TAN & low TAN in cure oil basket. In this connection, I’m interested to know whether the operation is satisfactory in a refinery of capacity around 10 MMTPA. How much cost is involved to implement the same? Whether simple in-line blending with analyzer or any catalytic (proprietary/ non-proprietary ) process is involved like decarboxylation and what will be the % conversion? Forwarding any paper or reference will be highly appreciated retaled to the topic.

Thanks & regards,

Dear,
Can you give some prior backgrounds like, is it like you are an authority who intends to know the possibility of existing facility up gradation for processing capabilities for high TAN crudes and economics involved in it. I see this as a big project of revamp of a refinery, and for the same you need to approach a consultancy organization who are expertise in this area.
This is absolutely feasible as far as my experience is concerned, I got the opportunity in past to associate with a project where a refinery complex was revamped for high sulphur bearing crudes verses it's original installation to process low sulphur bearing crudes.