Study On The Synthesis Technology Of Petroleum Sulfonates In Film Sulfonation Reactor

The petroleum sulfonate(PS) is widely used as a kind of anionic surfactant which is capable of enhancing the oil recovery. It is lower in the cost than others and the raw material is easily got. It is significant to enhancing the oil recovery that study on synthesizing of the petroleum sulfonate.A new petroleum sulfonate is synthesized in the single-tube film sulfonation reactor by the raw material of Suizhong low solidification point naphthene-base VGO and SO3 sulfonation agent. The synthesis conditions are optimized by the single factor and orthogonal experiments. Under the conditions, the yield of VGO2 and VGO3 is 62.3% and 64.0%, the petroleum sulfonate possesses high composition percentage of active components, appropriate average molecular weight and favorable surfacial activity. The surface tension of petroleum sulfonate which is produced in the optimized conditions is lower than 32mN·m-1 when pH≯11. Based on the research, the petroleum sulfonate is adapt to the requirement of enhanced oil recovery. The thesis studies the mass transfer coefficient of the single-tube film sulfonation reactor. According to theoretical calculation, the mass transfer coefficient k G and kG' are closed to each other which deviation is 4.6%. The result shows that the mass transfer coefficient is able to reflect the operational capability of the single-tube film sulfonation reactor practically and the equations including can be used to the design of film sulfonation reactor. kGkG...