کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5157804 | 1500601 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Temperature stability of nanocellulose dispersions
ترجمه فارسی عنوان
پایداری دما پراکندگی نانوسلولوز
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کلمات کلیدی
Sodium hypochlorite (PubChem CID: 23665760)Enhanced oil recovery - بازیابی نفت پیشرفتهRheology - رئولوژیFurfural (PubChem CID: 7362) - فورفورال (PubChem CID: 7362)Drilling fluids - مایعات حفاریCellulose nanofibrils - نانوفیلترهای سلولزCellulose nanocrystals - نانوکریستال سلولز Temperature stability - پایداری دما
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Cellulose nanofibrils (CNF) have potential as rheology modifiers of water based fluids, e.g. drilling fluids for use in oil wells or as additives in injection water for enhanced oil recovery (EOR). The temperature in oil wells can be high (>100 °C), and the retention time long; days for drilling fluids and months for EOR fluids. Hence, it is important to assess the temperature stability over time of nanocellulose dispersions to clarify their suitability as rheology modifiers of water based fluids at such harsh conditions. Dispersions of CNF produced mechanically, by using TEMPO mediated oxidation and by using carboxymethylation as pretreatment, in addition to cellulose nanocrystals (CNC), have been subjected to heat aging. Temperature stability was best for CNC and for mechanically produced CNF that were stable after heating to 140 °C for three days. The effect of additives was evaluated; cesium formate and sodium formate increased the temperature stability of the dispersions, while there was no effect of using phosphate buffer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 157, 10 February 2017, Pages 114-121
Journal: Carbohydrate Polymers - Volume 157, 10 February 2017, Pages 114-121
نویسندگان
Ellinor B. Heggset, Gary Chinga-Carrasco, Kristin Syverud,