[gary m pitman]

Sorry to hear you are struggling with coke cutting deepesh1534.
I’ve been to more than 100 cokers, and everyone has issues with coke fines.

Some items that may affect the amount of coke fines in the cutting are:

· The crude slate.

· The coil outlet temperature which can make the coke dusty, sandy, ash like and generates fines.

· Coke cutting techniques. If you pulverize the coke with the cutting system, you make more coke fines.

· Configuration of the cutting water recycling system (the maze).

· Cycle time – is there enough time for the coke fines to settle out in the maze?

· How often is the maze cleaned to reduce the buildup and allow the channels to work properly?

· Most cutting water tanks have an agitation and drain system. Is that being used on a routine basis?

· Pull samples at the jet pump suction at different times of the coke drum cycle as a base point for comparison throughout the water flow.

· Issues with the cutting tool operation requires more investigation. There may be other issues affecting that.

I highly suggest using an Infrared (IR) camera to take a picture of the side of the jet tank to show the level of the coke in the jet tank.

You can focus your analysis in the areas I listed above. If you would like me to go into more details about your specific site, you can reach me, Gary Pitman, directly on the contacts (http://refiningcommunity.local/contact/) page.

[gary m pitman]

Yes
RuhrPumpen
Frank Deuerling
49 2302 661 220

Luoyang Jianguang Petrochemical Co. Ltd.
Phone: +86 86 0379 64581518
Website: http://www.lyjg.cn
Address (Shipping): No. 11 Dongmagou Ind. Park, Luoyang New & Hi-Tech d evp. Zone Luoyang, Henan, PRC 471003 China

[gary m pitman]

Hello Chiou,
Patrick Hagen at Clean Harbors designs and builds sludge injection system and he is a wealth of information.
Here is his contact information.

Contact Name
Patrick Hagan
Phone
+1 707.747.6699 Work
Phone
661-201-0152 Mobile
Email
hagan.pat@cleanharbors.com Work
Work Address
4101 Industrial Way Benicia, CA 94510 United States

[gary m pitman]

Hello,
I am guessing you have the FLOWSERVE/TK valve 6″ x 2500 air actuator ball valve for your water isolation.

One thing that may help is using a sealant to prevent high pressure water from getting in the body. On the outside of the body there is a Lincoln head grease fitting that we pumped silicone sealant into.
I think that the OEM has something about this??
Packing the area around the ball helps to prevent coke laden high pressure water from entering the ball to body cavity causing erosion.

Some of the time the body is too eroded to rebuild.
It is a best practice to include this pumping of the sealant in a routine preventative maintenance package to prevent damage to the valve.

If the valves have been rebuilt, the tolerances may be incorrect on the seals around the ball to keep any water from getting into the body area.
There may be bull plugs in the body and someone will have to remove those and install the Lincoln head fitting. I can send some photo examples if you wish, contact me at the address below.

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TK Sealant Fitting-1

TK Sealant Fitting-2

TK Sealant Fitting-3

Gary Pitman
coking.local
Phone 360-920-8911
Email gary@coking.local

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