Design of Nanocellulose Fibrils Containing Lignin Segment (L-NCF) for Producing Stable Liquid Foams as “Green” Flooding Agents for Oil Recovery

纳米纤维素 木质素 肺表面活性物质 材料科学 化学工程 聚结(物理) 提高采收率 气泡 多孔性 粘弹性 纤维素 复合材料 化学 有机化学 物理 天体生物学 并行计算 计算机科学 工程类
作者
Bing Wei,Yuanyuan Wang,Runxue Mao,Xingguang Xu,Colin D. Wood,Yangbing Wen
出处
期刊:ACS Sustainable Chemistry & Engineering [American Chemical Society]
卷期号:7 (13): 11426-11437 被引量:42
标识
DOI:10.1021/acssuschemeng.9b01249
摘要

Foam stability is a crucial consideration in the view of its numerous applications. Herein, a series of nanocellulose fibrils containing lignin segment (L-NCF) was designed and then utilized for interfacial stabilization of liquid foams for eco-friendly oil recovery applications. The ability to form foams and their stability at bulk scale and bubble scale were thoroughly investigated using a foam scanner. Liquid drainage rate, bubble rupture, interfacial dilational viscoelasticity, and bubble transport in porous media were studied as a function of lignin content. We observed that in a vertical column the addition of L-NCF significantly mitigated the drainage of the liquid foams. The foam volume stability (FVS) index indicated that the stability of the foams in the presence of L-NCF was up to five times higher than that of surfactant-only foam. The hydrophobic interaction between the surfactant (mixture of alkyl polyglycoside (APG) and anion surfactant alpha olefin sulfonate (AOS)) and L-NCF (lignin segment) constructed an elastic interface for the foams, which notably protected the liquid foams from coarsening and coalescence. The L-NCF stabilized foams can appropriately transport in porous media without the plugging issue, during which great differential pressures are simultaneously built up as a result of the yielded elastic interface. It is believed that nanocellulose is very promising in the oil production industry as a green alterative to synthetic chemicals.
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