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zhang66163銀蟲 (正式寫手)
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[求助]
動力學(xué)模型
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| 各位大俠,有誰知道動力學(xué)模型中,LH模型和LHHW模型,這兩個模型是一樣的嗎?如果不一樣有什么區(qū)別,謝謝 |
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While it may appear that little difference in form exists between Langmuir-Hinshelwood rate expressions and those of Hougen-Watson, it must be emphasized that the developments of Watson and Hougen prove to be far more comprehensive. For in addition to surface reaction per se, the Hougen- Watson formulations include explicit terms for catalyst activity (sites), catalyst effectiveness due to diffusion, and provision for activity decay. Further, multisite as well as adjacent- site models were anticipated. The Hougen-Watson catalytic rate equations represent not merely a modification of the Langmuir-Hinshelwood formulations but highly instructive extensions and refinements, the unique utility of which is demonstrated in the analysis and design of catalytic reactors. Chemical and Catalytic Reaction Engineering By James J. Carberry |
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