Ukhta State Technical University, Ukhta
The efficiency of hydrocarbon solvents for ARPD on the basis of by-products of petrochemical products is evaluated. The dissolving efficiency of the absorbents A2, Bottom Residue of Benzene Distillation (BRBD) and Bottom Residue of Ethyl Ben-zene Distillation (BRED) and compositions based on them is defined. It has been found that the solvent capacity of petroleum solvents with respect to ARPD grows as the content of aromatic hydrocarbons increases. Recommendations have been made to enable the hydrocarbon solvent to penetrate the inner layers of ARPD through a water film enveloping asphalt-resin and paraffin agglomerates.