| Literature DB >> 32507212 |
Renliang Lyu1, Ting Xia1, Cheng Liang1, Cheng Zhang1, Zeqin Li1, Lichun Wang2, Yi Wang1, Ming Wu3, Xiaogang Luo4, Jiayu Ma1, Cunwen Wang1, Caili Xu5.
Abstract
Three kinds of novel environmentally benign and high-efficiency crude oil demulsifiers were prepared using methoxy polyethylene glycol (MPEG) to modify alkylated carboxymethyl chitosan (ACMC). Structures of the demulsifiers were confirmed using FT-IR and 1H NMR, and the relationship between surface tension and concentration was tested. Demulsification performance was investigated using the bottle test method with oil-in-water (O/W) emulsions that were prepared in lab conditions. The demulsification efficiency was as high as 79.1 %-84.9 %, and the possible mechanism of the demulsification process is discussed. Results show that MPEG-grafted ACMC (MPEG-ACMC) has a promising application as a demulsifier for dealing with emulsified O/W crude oil.Entities:
Keywords: (ACMC); (MPEG); 1-bromobutane (Pubchem CID: 8002); 1-bromohexane (Pubchem CID: 8101); 1-bromooctane (Pubchem CID: 8140); Alkylated; Carboxymethyl chitosan; Chitosan (Pubchem CID: 129662530); Demulsification efficiency; Methoxy polyethylene glycol; Surface tension; acetone (Pubchem CID: 180); isopropanol (Pubchem CID: 3776); potassium hydroxide (Pubchem CID: 14797); sodium chloroacetate (Pubchem CID: 23665759); succinic anhydride (Pubchem CID: 7922); triethylamine (Pubchem CID: 8471)
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Year: 2020 PMID： 32507212 DOI： 10.1016/j.carbpol.2020.116309
Source DB: PubMed Journal: Carbohydr Polym ISSN： 0144-8617 Impact factor: 9.381