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Processes for redistributing heat flux on process tubes within process heaters, and process heaters including the same
Processes for redistributing heat flux on process tubes within process heaters, and process heaters including the same
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机译:用于在过程加热器内的过程管上重新分配热通量的过程,以及包括该过程的过程加热器
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摘要
Process tubes of a fired process heaters are provided with a more equal heat flux distribution about an exterior circumferential surface region thereof. More specifically, according to the present invention, there is provided on at least one circumferential segment of the exterior circumferential surface region of the process tube, a coating of a material having a selected thermal emissivity and/or thermal conductivity which is different from the thermal emissivity and/or thermal conductivity of another circumferential segment of the exterior circumferential surface of the process tube. In such a manner, a more equal heat flux distribution about an entirety of the exterior circumferential surface region of the process tube is established as compared to the heat flux distribution thereabout in the absence of the coating.
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