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专业: 化工系统工程

[求助] 求助反应工程问题

求助一道反应工程学科的问题，教授布置了题目但是完全没思路

Steel wires with a diameter of d will be fed into a tublar reactor having a diameter D and a length L in a continuous mode at a velocity of Us in order to be coated with Ti2C with a titanium precursor in excess propane. The gas feed with a titanium precursor concentration of CA0 will be fed to the reactor at a velocity of Ug. The reaction can be described as first order to the titanium precursor.
For the case of N bundles of wires fed to the reactor at an equal distance, set up the reactor design equation in order to estimate the final coating thickness of Ti2C on the wires either at co-current or counter-current directions of the feeds between the wires and gas.

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