{"id":10481,"date":"2022-10-08T07:23:14","date_gmt":"2022-10-08T07:23:14","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=10481"},"modified":"2022-10-08T07:24:18","modified_gmt":"2022-10-08T07:24:18","slug":"theory-of-inert-gas-dehydrogenation","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/id\/theory-of-inert-gas-dehydrogenation\/","title":{"rendered":"Teori dehidrogenasi gas inert\u00a0"},"content":{"rendered":"

Teori dehidrogenasi gas inert<\/h1>\n
<\/div>\n

Apa itu teori dehidrogenasi gas inert? Kelarutan hidrogen dalam aluminium ditentukan oleh tekanan parsial hidrogen pada fase gas yang bersentuhan dengan lelehan aluminium. Ketika tekanan parsial hidrogen pada keadaan kesetimbangan yang sesuai dengan kandungan hidrogen dalam lelehan aluminium lebih besar daripada tekanan parsial hidrogen dalam gas aktual yang bersentuhan dengan lelehan aluminium, hidrogen dalam lelehan aluminium akan berdifusi ke fase gas untuk mencapai penghilangan hidrogen. Inilah prinsip penghilangan hidrogen melalui flotasi gelembung. Berdasarkan hal ini, gas inert murni dimasukkan ke dalam lelehan, karena tekanan parsial hidrogen dalam gelembung gas inert adalah P\u2019H\u2082=0, dan tekanan parsial hidrogen pada keadaan kesetimbangan yang sesuai dengan kandungan hidrogen dalam lelehan adalah PH2 > 0, maka hidrogen dalam lelehan akan berdifusi ke dalam gelembung, bergabung menjadi molekul hidrogen, dan dikeluarkan dari lelehan bersama gelembung-gelembung tersebut.<\/p>\n

Agar dapat menghilangkan hidrogen sebanyak mungkin dari lelehan aluminium dengan menggunakan gas inert sesedikit mungkin, prinsip-prinsip berikut ini harus diterapkan dalam proses dehidrogenasi gas inert secara online:<\/p>\n

(1) semakin rendah kandungan hidrogen dan oksigen dalam gas inert, semakin baik;<\/p>\n

(2) Semakin banyak gelembung yang terbentuk akibat peniupan gas inert ke dalam lelehan, semakin halus dan tersebar merata, semakin baik;<\/p>\n

(3) Semakin lama gelembung-gelembung tersebut bertahan di dalam lelehan aluminium, semakin baik.<\/p>\n

\"dehidrogenasi

unit penghilang gas<\/a><\/p><\/div>\n

Oleh karena itu, unit penghilangan gas inert umumnya menggunakan nosel berputar berkecepatan tinggi, dan fluida yang dikeluarkan dari bilah-bilah nosel tersebut menghasilkan aliran turbulen yang kuat. Gelembung-gelembung yang dikeluarkan dari nosel berputar berkecepatan tinggi tersebut dengan cepat tersemprot oleh cairan yang disemprotkan oleh bilah-bilah nosel serta cairan di sekitarnya yang bergerak relatif lebih lambat di dekat nosel.<\/p>\n

Setelah terperangkap, gelembung tersebut mengalami tegangan geser turbulen yang dihasilkan oleh dua lapisan fluida, dan ketika tegangan tersebut melebihi daya dukung gelembung, gelembung tersebut terbelah menjadi dua gelembung. Gelembung-gelembung yang terpecah tersebut kemudian terperangkap oleh lapisan-lapisan cairan tangensial lainnya dan dapat terus terpecah menjadi gelembung-gelembung yang lebih kecil hingga tegangan geser antara kedua lapisan fluida tersebut tidak cukup untuk memecah gelembung-gelembung tersebut atau gelembung-gelembung tersebut berada di luar jangkauan tegangan geser tersebut.<\/p>\n

Dengan demikian, gelembung yang lebih halus dan seragam dapat dihasilkan dibandingkan dengan sistem satu tabung atau multi-tabung, yang secara efektif dapat meningkatkan luas permukaan spesifik, serta secara efektif meningkatkan kapasitas transfer massa dan difusi, sekaligus memperpanjang waktu kontak gas. Waktu kontak antarmuka cairan, ketika aliran masuk gas pemurnian konstan, membuat konsentrasi hidrogen dalam gelembung pemurnian yang keluar dari lelehan aluminium menjadi lebih tinggi, dan gas pemurnian digunakan secara efektif sehingga efek pemurnian yang sangat baik dapat diperoleh.<\/p>","protected":false},"excerpt":{"rendered":"

Theory of inert gas dehydrogenation What is the theory of inert gas dehydrogenation? The solubility of hydrogen in aluminum is determined by the partial pressure of hydrogen in the gas phase in contact with the aluminum melt. When the hydrogen partial pressure in the equilibrium…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[45391,26523,1],"tags":[],"yoast_head":"\nTheory of inert gas dehydrogenation\u00a0<\/title>\n<meta name=\"description\" content=\"What is the theory of inert gas dehydrogenation? 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