Delayed thermal cracking system, apparatus, and method
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United States of America Patent
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Jul 5, 2022
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app pub date -
Aug 30, 2021
filing date -
Aug 30, 2021
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Abstract
A delayed thermal cracking process, system, and apparatus for heavy (i.e., high boiling point) coker feed materials which eliminates the production of a solid coke product and replaces the coke product with a higher value, pumpable tar liquid material which can be used as an asphalt paving material, as a fuel oil, or for other purposes. A hydrocarbon cooling and diluting material is added to and mixed with the tar material in the coking drum after the fill cycle to produce the liquid tar product and eliminate the steam-out, quenching, draining, unheading, hydraulic cutting, reheading, pressure testing, and warm-up procedures previously required in delayed coking systems, and to also eliminate the environmental issues and costs associated therewith.
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