Process for manufacturing a surfactant from paper-making black liquor resin for exploitation of petroleum

Abstract

The present invention discloses a process for manufacturing surfactants for hydrocarbon by modifying the paper making black liquor resin using modifying agents. The process is to react or combine an alkaline aqueous solution, chemical substances such as olefin, aromatic hydrocarbon, and fatty acids, amino acids, phospholipids as well as one or more of the surfactants for petroleum recovery with 20%-80% of the paper making black liquor resin, the reaction lasting for 1-3 hours at the temperature of 80.degree.-100.degree. C. and ordinary pressure, the pH value of the reaction mixture being kept at 10-12. The surfactant prepared by this method can be effectively used in the recovery of thick oil, asphalt emulsification for road pavement and the oil driving in tertiary recovery oil drainage in petroleum recovery. It has remarkable viscosity reducing effect on petroleum, its emulsification ability being strong, its viscosity reducing rate for 3.0.times.10.sup.5 -5.0.times.10.sup.5 centipoise super thick oil reaching as high as 97%-98%, room oil drainage rate reaching 80.77%, and being able to emulsify 80#-140# petroleum asphalt at low temperature of 40.degree. C.-70.degree. C., the concentration range being used 0.05%-1.5%, it advantageausly resolves the difficlut problems in the tertiary recovery of petroleum and thick oil recovery. When an investment of RMB .Yen. 1800 (Chinese currancy "yuan") is made, a net profit of RMB .Yen. 206,800 can be obtained bringing a remarkable economic benefit.

Dependencies are inferred from the claim text.