【Q&A Question 082】March 23, 2017
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This post was last edited by 955559 on 2017-7-21 at 22:30. [Q&A Question No. 082] What is the function of the reactor inlet diffuser? The reference answer can be seen after *relying*, and points will be awarded for identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Initially disperse the material to prevent direct impact on the distribution plate. 2017 Q&A Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html Third Phase of HaiChuan’s Outstanding Management Members Selection Contest http://bbs.hcbbs.com/thread-1655902-1-1.html (Source: HaiChuan Chemical Forum)
Disperse the reactants to ensure uniform reaction temperature
Ensure that the raw materials are evenly distributed on the distribution disk
Ensure uniform gas flow into the reactor to prevent channeling
It prevents high-speed fluids from striking the liquid distribution plate directly and affecting the distribution efficiency, thereby promoting premixing of vapor and liquid and ensuring their spread across the entire reactor interface. In the case of oblong-hole side-gap diffusers, it also serves to trap some of the rust and impurities present in the feed.
The reactants are evenly distributed with uniform mixing
Its function is to initially disperse the material and prevent direct impact on the distribution plate.
It prevents high-speed fluids from striking the liquid distribution disk directly, thereby avoiding adverse effects on the distribution process; it promotes pre-mixing of gas and liquid and ensures their even distribution across the entire reactor cross-section. In the case of oblong-hole side-gap diffusers, it also helps to trap any rust or impurities present in the feed material.
Distribute the oil and gas medium entering the reactor across the entire cross-section of the reactor； ②Eliminate the vertical impact of gas and liquid media on the top distribution plate, to ensure its stable operation
The reactor feed enters the reactor from the inlet, usually at a high flow rate and concentrated in the middle of the reactor. To prevent it from hitting the distribution plate directly, a diffuser is installed at the reactor inlet. The diffuser has two channels; the flow of oil and gas entering the reactor is perpendicular to these channels. This prevents the liquid flow from exiting through one of the channels prematurely, which could otherwise lead to uneven distribution.