Importance

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Abstract

A system for removing contaminants from a pyrolysis fluid is provided. The system comprises a recirculation loop; and a bleed off line. The recirculation loop comprises a quenching vessel; separation apparatus; a recirculation line; and cooling apparatus. The quenching vessel has: a first inlet for receiving a supply of pyrolysis fluid; a second inlet arranged to receive a recirculated fluid; and an outlet for expelling quenched pyrolysis fluid. The separation apparatus is for removing contaminants from the quenched pyrolysis fluid to provide a clarified flow, the separation apparatus arranged to receive quenched pyrolysis fluid from the outlet. The recirculation line is arranged to receive at least a recirculation portion of the clarified flow and recirculate the recirculation portion to the second inlet. The cooling apparatus is arranged to cool fluid in the recirculation loop. The bleed-off line is for selectively bleeding-off a bleed-off portion of the clarified flow from the recirculation loop.

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First Claim