Method of disposing of waste in a coking process
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United States of America Patent
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Mar 20, 2001
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N/A
app pub date -
Nov 3, 1998
filing date -
Nov 3, 1998
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Abstract
A method for recycling a waste stream containing water and solids comprises (a) removing water from the waste stream to produce a second stream containing less than 60% by weight water, (b) drying the second stream to produce a waste feed charge containing less than 15% by weight water, and (c) injecting the waste feed charge into a coker during the coking cycle. The water removal can be carried out in one or more steps, and can be carried out in a vertical disk centrifuge if it is also desired to reduce the particle size of the solids fraction. The waste feed charge can be injected into a delayed coker, flexicoker, or fluid coker, and allows the recycle of solid waste into the coke.
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