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US 2017/0321127 A1Published application
Improved systems and methods for delayed coking
AssigneeThe University of Tulsa
InventorsDwijen K. BANERJEE, Michael VOLK, Keith WISECARVER, Gilxon Mavarez NAVA
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Abstract
Disclosed is an improved system and method for carrying out the petroleum coking process. The improvements provide for recovery of gaseous hydrocarbons from operational units and use of the recovered gaseous hydrocarbons in place of steam during the coking process and during the stripping of volatile compounds from the coke drums.
Claims30
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A delayed coking method comprising:
- heating liquid hydrocarbons;
- filling a coke drum by passing the heated liquid hydrocarbon into a coke drum;
- maintaining said coke drum at a temperature sufficient to initiate and substantially complete the conversion of said liquid hydrocarbons to solid petroleum coke and to recover volatile hydrocarbons from said coke drum;
- heating gaseous hydrocarbons;
- and,
- upon substantial completion of the conversion of said liquid hydrocarbons to solid petroleum coke, stripping volatile hydrocarbons from said solid petroleum coke within said coke drum by passing said heated gaseous hydrocarbons through said solid petroleum coke within said coke drum and removing volatile hydrocarbons from said coke drum.
3 more elements
A delayed coking method comprising:
- heating liquid hydrocarbons to a temperature between about 450° C. and about 550° C.;
- filling a coke drum by passing the heated liquid hydrocarbon into a coke drum;
- maintaining said coke drum at a temperature between about 480° C. and 500° C. and a pressure between about 50 to 500 kPa for a period of time sufficient to substantially complete the conversion of said liquid hydrocarbons to solid petroleum coke and to recover volatile hydrocarbons from said coke drum;
- heating gaseous hydrocarbons to a temperature of between about 450° C. and about 550° C.;
- and,
- upon substantial completion of the conversion of said liquid hydrocarbons to solid petroleum coke, stripping volatile hydrocarbons from said solid petroleum coke within said coke drum by passing said heated gaseous hydrocarbons through said solid petroleum coke within said coke drum and removing volatile hydrocarbons from said coke drum.
3 more elements
A delayed coking system comprising:
- a furnace, said furnace configured to heat gaseous and liquid hydrocarbons passing through the furnace;
- a vacuum distillation unit in fluid communication with said furnace via a first path of fluid communication;
- a compressor suitable for compressing gaseous hydrocarbon, said compressor in fluid communication with said furnace via a second path of fluid communication;
- a boiler in fluid communication with said furnace and said first path of fluid communication;
- a coke drum in fluid communication with said furnace via third and fourth paths of fluid communication wherein said third path of fluid communication provides heated liquid hydrocarbons to undergo a delayed coking process to said coke drum and said fourth path of fluid communication provides heated gaseous hydrocarbons to said coke drum.
2 more elements
Dependencies are inferred from the claim text.