Decoking of onstream thermal cracking tubes
Abstract
Abstract THERMAL CRACKING OF HYDROCARBONS IN ADMIXTURE WITH STEAM IN TUBES ARRANGED IN A CRACKING FURNACE LEADS TO THE DEPOSITION OF COKE ON THE INTERIOR WALLS OF THE TUBES, WHICH COKE MUST BE PERIODICALLY REMOVED IN ORDER TO MAINTAIN CRACKING EFFICIENCY; THE COKE CAN BE REMOVED, WITHOUT THE NECESSITY OF SHUTTING DOWN THE FURNACE, BY CUTTING OUT THE COKING HYDROCARBON FEED TO AT LEAST ONE TUBE AND PASSING THROUGH SUCH TUBE OR TUBES A DECOKING FEED OF STEAM AND A HYDROCARBON WHICH WHEN CRACKED WILL PRODUCE HYDROGEN AS A BY-PRODUCT, THE DECOKING FEED BEING SUBSTANTIALLY SULFUR FREE, WHILE MAINTAINING THE FURNACE ONSTREAM AND CONTINUING THE THERMAL CRACKING PROCESS IN THE TUBES THAT ARE NOT BEING DECOKED.
Inventors
- 👤 John A Kivlen
- 👤 Bert W Struth
- 👤 Clifford P Weiss
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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