Cycle time

[Christy Bohannon]

As with most people, I am looking for ideas to decrease cycle time. We are currently at a 16.5-17 hour cycle. Are there any new projects / upgrades / operational changes that have resulted in a decreased cycle time. I know this is very vague, but right I am just searching for new ideas, if you have specific questions, let me know.

[coker squirrel]

I am also looking for ways to improve cycle time and safety while we are at it. A couple of initiatives that we are currently going after: Delta Valve for bottom unheading and auto-switch drill bits. [;)]

[Anonymous]

My advise see you drum preparation sequences….!

[sreevatsa praveen]

regarding cycle time, we can use multiple methods….
 
1. Decrease Heater CoT and form shot coke- This will reduce coke cutting time, but while compensating liquid yields. If you have got a good market for your coke and if any improvement in quality of coke can fetch you more returns, go ahead.
 
2. Use automatic Shifting tool for Heading / Deheading operation. This will save you around 20 mins per cycle.
 
Sreevatsa Praveen

[Anonymous]

A few ideas.
   -Look at your cools, can you increase the rate that you cool a drum?  Install/clean exchangers to assist in cutting down the cool time.
    -Do you have the ability to steam purge a drum during the same time you do a steam strip? (this step alone helped knock off 30-45 minutes)

[sinhack]

Can you please explain more on 2nd point – “Do you have the ability to steam purge a drum during the same time you do a steam strip? (this step alone helped knock off 30-45 minutes) “. We are running with 24 hr cycle and making anode grade coke.

[Claus Graf]

You might find this file useful:
 
http://www.fwc.com/publications/tech_papers/files/HP09%20OptimizeCokerOps.pdf
 
Regards, CG

[Ravindra Goswami]

I have Worked with Reliance petroleum Ltd, India where the cycle time is 13 hrs only for more details please contact on goswamiravindra@yahoo.co.in
 

[tinajane tinajane]

We are currently at a 16.5-17 hour cycle. Are there any new projects / upgrades / operational changes that have resulted in a decreased cycle time. I know this is very vague, but right I am just searching for new ideas, if you have specific questions, let me know.

[Author]

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