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[Q&A Question 178] 2018.07.02

2018-07-02View Original

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【Q&A Question 178】July 02, 2018: Briefly describe the function of the cold hydrogen tank in the hydrogenation reactor. The cold hydrogen tank is primarily used to control the rise in temperature of the catalyst bed caused by the exothermic hydrogenation reaction. It allows the hot stream from the upper catalyst bed to exchange heat with the rapidly cooled hydrogen, thereby thoroughly mixing the reactants from the upper bed with the cold hydrogen that serves a cooling function. After that, the uniformly temperatureed gas-liquid mixture is evenly distributed to the catalyst bed below. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ; Mass posting of posts – rated based on the lowest score ; Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below. The APP short-video skill competition has started! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1951670
Reply #22018-07-02
The function of the cold hydrogen tank is to control the temperature rise of the catalyst bed caused by the exothermic hydrogenation reaction, allowing the high-temperature stream coming from the upper bed to exchange heat with the quenched hydrogen here. Its structure consists of a cold hydrogen tube, a cold hydrogen disk, and a redistribution disk.
Reply #32018-07-02
Heat removal is used to control the temperature of the reaction materials; mixing and neutralization help to reduce the temperature differences among the reaction materials, thereby achieving temperature homogenization.
Reply #42018-07-02
The function of the cold hydrogen tank is to control the temperature rise of the catalyst bed caused by the exothermic hydrogenation reaction, allowing the high-temperature stream coming from the upper bed to exchange heat with the quenched hydrogen here. Its structure consists of a cold hydrogen tube, a cold hydrogen disk, and a redistribution disk.
Reply #52018-07-02
It is used to control the temperature rise of the catalyst bed caused by the exothermic hydrogenation reaction, allowing the high-temperature stream entering the bed to exchange heat with quench hydrogen here. Its structure consists of a cold hydrogen tube, a cold hydrogen disk, and a redistribution disk.
Reply #62018-07-02
The cold hydrogen tank is primarily used to control the rise in temperature of the catalyst bed caused by the exothermic hydrogenation reaction. It allows the hot stream from the upper catalyst bed to exchange heat with the rapidly cooled hydrogen, thereby thoroughly mixing the reactants from the upper bed with the cold hydrogen that serves a cooling function. After that, the uniformly temperatureed gas-liquid mixture is evenly distributed to the catalyst bed below.
Reply #72018-07-02
Reduce the reaction temperature and control the reactor temperature rise.
Reply #82018-07-02
The cold hydrogen tank is primarily used to control the rise in temperature of the catalyst bed caused by the exothermic hydrogenation reaction. It allows the hot stream from the upper catalyst bed to exchange heat with the rapidly cooled hydrogen, thereby thoroughly mixing the reactants from the upper bed with the cold hydrogen that serves as a cooling agent. After that, the uniformly temperatureed gas-liquid mixture is evenly distributed to the catalyst bed below.
Reply #92018-07-02
The function of the cold hydrogen tank is to control the temperature rise of the catalyst bed caused by the exothermic hydrogenation reaction, allowing the high-temperature stream coming from the upper bed to exchange heat with the quenched hydrogen here. Its structure consists of a cold hydrogen tube, a cold hydrogen disk, and a redistribution disk.
Reply #102018-07-02
Cold hydrogen is evenly distributed to protect the catalyst from shocks
Reply #112018-07-02
It mainly controls the temperature rise in the catalyst bed to prevent excessive temperature increases and increases the hydrogen partial pressure

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