Development And Research Of Alkylnaphthalene Sulfonates

Flooding is a chemical compound present and to enhance the output of crude oil and make full use of oil resources in a more desirable technical measures. The process of technology commercialization is an important issue is to find a cheap, effective and adequate source of the EOR, in order to further reduce its production costs. But so far, the combination flooding in the surfactant is still the main oil sulfonate, live on other forms of research and application of the few. Production of oil and raw materials mainly from the sulfonate oil fields, there is a sulfonated at the low rate of conversion, a large amount of acid residue and not sulfonated oil recovery problems, high production costs.Alkylnaphthalene sulfonate production of raw materials from the cracking diesel oil by-products of the large number of access, high yield and sulfonation. If alkyl naphthalene sulfonate can be used to flooding, we can ease the problems faced by current and greatly reduce the cost of oil flooding.This article alkyl sodium naphthalene and the fundamental nature of the enhanced oil recovery in the application of the possibility of the exploratory research. AlC13 as a catalyst to the alkylation of the isomers of naphthalene sulfonate pure surfactant. Two-phase titration to the alkylation of the purity of sodium naphthalene and used gas chromatography and its intermediate product of a characterization. By ModelTX-500 ultra-low-drop interface tension rotating Determination of the surfactant / alkaline water system interface tension, discussed the surfactant concentration, alkali concentration on the tension of oil-water interface. Surface tension interface through experiments on the alkylation naphthalene sodium and other types of surfactant compound. Alkylnaphthalene in sodium and other types of surfactant compound, showed a better character. Cation and complex system to a very low concentration and low cation in the circumstances, greatly increase the activity of complex systems, oil-water inter- face tension will be reduced to ultra-low. In the form of low-concentration and concentration of alkaline water interfacial tension will be reduced to ultra-low interface tension, and maintain a long time.