کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8126946 1522819 2014 36 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modified maleic anhydride-co-octadecene copolymers as flow improver for waxy Egyptian crude oil
ترجمه فارسی عنوان
کوپلیمرهای منیدی آنیدرید-کوکتاتادنیک اصلاح شده به عنوان بهبود جریان برای نفت خام مصر مومی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی
Polymeric flow improvers represent one of the most important chemicals used in oil industry especially with waxy crudes. The chemical structure of such chemicals is particularly important. In this study, we prepared a family of additives by chemical modification of octadecene-co-maleic anhydride copolymers (OM). The copolymerization of octadecene (OD) with maleic anhydride (MA) was performed at variable ratios of OD:MA (1:1, 1:2 and 2:1). OM copolymers were chemically modified by grafting three different alcohols: dodecanol, hexadecanol or docosanol. Grafts were characterized through molecular weight using GPC, melting temperature and enthalpy of melting by DSC and chemical structure through 1HNMR. The comb-like copolymers were assessed as flow improvers for an Egyptian waxy crude oil by measuring their performance as pour point depressants in addition to their assessment as viscosity improvers through rheological behavior. The data indicate that the additive must retain a hydrophobic-lypophobic balance, low crystallinity and matching melting temperature with that of crude wax in order to inhibit the paraffin and wax crystal depositions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Petroleum Science and Engineering - Volume 122, October 2014, Pages 411-419
نویسندگان
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