کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
679994 1459961 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Separation of phenolic compounds with modified adsorption resin from aqueous phase products of hydrothermal liquefaction of rice straw
ترجمه فارسی عنوان
جداسازی ترکیبات فنلی با رزین جاذب اصلاح شده از محصولات فاز آبی مایع سازی هیدروترمال از کاه برنج
کلمات کلیدی
کاه، مایع سازی هیدروترمال رزین جذب، تغییر
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی


• A modified resin was applied to separate phenolic compounds in aqueous phase product.
• The optimal separation condition for modified resin was explored.
• The content of phenolic compounds in aqueous product increased from 18% to 78%.

Hydrothermal liquefaction can be used to convert rice straw into an aqueous phase product that contains valuable phenolic compounds. In experiments, commercial adsorption resin XAD-4 was modified by a benzene ring – α,α′-dichloro-p-xylene (DCX) – in order to separate the phenolic compounds from the aqueous phase product; and, the optimal conditions for separation were explored. The results showed that, after modification of the resin, its adsorption capacity improved by 50%, due to increases in surface area, pore volume and micropore volume. The selectivity of the resin increased when the benzene ring was introduced as the ring formed hydrogen bonds with the compounds. The optimal conditions for separation were desorption agent of 40%, 45% and 55% ethanol solution, a flow rate of 2.5–5 mL/min, and a ratio of the sample volume to the column volume was 1:1. The total content of phenolic compounds in aqueous solution increased from 18% to 78% after separation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 182, April 2015, Pages 160–168
نویسندگان
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