Coil for pyrolysis heater and method of cracking
AssigneeLummus Technology Inc.
InventorsCor Franciscus van Egmond, Kandasamy Meenakshi Sundaram
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Abstract
Randomly packing with filler material at least part of a pass in a coil used in a system for pyrolyzing hydrocarbon feedstock to lighter hydrocarbons. Randomly packing increases heat transfer and decreases the rate of coke build-up within the coil, yielding an improvement in overall system efficiency. Packing material can comprise or be treated with a suitable catalyst for increasing the rate of chemical decomposition, thus further improving system efficiency.
Claims20
A coil for a pyrolysis heating system, comprising:
- an inlet where feedstock is introduced into the coil and an outlet where olefin product exists the coil;
- at least one generally cylindrical pass between the inlet and outlet, wherein at least part of at least one pass is randomly packed with a thermally conductive filler material.
A method of increasing heat transfer in a coil of a pyrolysis system with at least one generally cylindrical pass positioned between an inlet and an outlet, comprising randomly packing at least part of at least one pass with a thermally conductive filler material.
A method of pyrolyzing a hydrocarbon feedstock into olefins in a system having an enclosed furnace with at least one generally cylindrical coil, each coil with an inlet, an outlet and at least one pass, comprising:
- randomly packing at least part of at least one coil pass with a thermally conductive filler material;
- introducing the hydrocarbon feed into the inlet of the coils;
- heating the coils to a temperature sufficient to break down the hydrocarbon feedstock into olefins;
- collecting the olefins at the coil outlet.
Dependencies are inferred from the claim text.