Original scientific paper
https://doi.org/10.15255/KUI.2017.004
Topljivost CO2 u eterima 1-aliloksi-3-(4-nonilfenoksi)-2-propanola i polioksietilena
Qining Wang
; Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310 014, Kina
Haifang Shan
; Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310 014, Kina
Guihua Li
; Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310 014, Kina
Yanfei Chen
; Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310 014, Kina
Dongshun Deng
; Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310 014, Kina
Ning Ai
; Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310 014, Kina
Abstract
Ispitana je topljivost ugljikova dioksida u eterima 1-aliloksi-3-(4-nonilfenoksi)-2-propanola i polioksietilena (ANAPE), (SN-10 i SN-15) u izohornim uvjetima pri rasponu tlakova 0 – 600 kPa i temperatura 303,15 – 323,15 K. Topljivost CO2 raste s tlakom, a pri svim tlakovima opada s temperaturom. U cijelom temperaturnom rasponu topljivost je veća u SN-15, ali pri 303,15 K i tlakovima nižim od 350 kPa gotovo je izjednačena s topljivošću u SN-10 što ukazuje na fizikalni mehanizam otapanja. Određene su Henryjeve konstante i termodinamika apsorpcije, uključujući entalpiju, entropiju i Gibbsovu energiju. Prema negativnim vrijednostima entalpije otapanje CO2 u eterima ANAPE je egzoterman proces.
Ovo djelo je dano na korištenje pod licencom Creative Commons Imenovanje 4.0 međunarodna.
Keywords
ionske tekućine; topljivost; Henryjeva konstanta; termodinamika; Gibbsova energija
Hrčak ID:
182258
URI
Publication date:
2.6.2017.
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