Progress in the development of sour corrosion inhibitors: Past, present, and future perspectives

Synthetic and lignin-based surfactants: Challenges and opportunities

Pilot scale recovery of lignin from black liquor and advanced characterization of the final product

Surface and interface characteristics of hydrophobic lignin derivatives in solvents and films

Fabrication of amphoteric lignin and its hydrophilicity/oleophilicity at oil/water interface

The interfacial tensions between the crude oil and the novel modified lignosulfonate solutions were measured by a spinning drop interfacial tension apparatus. Some effects that influence on IFT were discussed. With the increase of alkyl chain length or the number of lipophilic groups introduced, the interfacial activity of the modified lignosulfonate increases, and the optimum surfactant concentration required to reach ultra-low IFT decreases. Excellent activity at the interface of crude oil and the solutions was observed. The interfacial tensions of the modified lignosulfonates could be ultra-low over a wide range of surfactant concentration and alkali concentration without the addition of other surfactants. They are capable of being the principal surfactant in enhanced oil recovery (EOR).

Research Interfacial Properties of the Novel Lignosulfonates

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Research Interfacial Properties of the Novel Lignosulfonates