Open AccessSelection of the reagent to neutralize hydrogen sulfide and methyl-, ethylmercaptans in oil
Author(s) -
Tatyana Kuryakova,
Larisa Mezhueva,
Konstantin P. Uzun,
Olga Tamoshina,
Natalia G. Beregovaya
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/918/1/012098
Subject(s) - reagent , chemistry , hydrogen sulfide , residual oil , fraction (chemistry) , mass fraction , waste management , chromatography , analytical chemistry (journal) , organic chemistry , sulfur , engineering
Laboratory studies of 2016 on the residual content of light mercaptans at the loading point revealed an excess of the mass fraction of methyl- and ethylmercaptans in the prepared oil of the Borodino field. The studies stated that the most effective results on the residual content of mercaptans in purified oil are achieved by adding the reagent-neutralizer to degassed oil after the second stage of separation. Also, the tests proved that water in oil has an effect on the flow of reaction. The action of the reagent-neutralizer takes place at the “oil-water” phase boundary, the dispersion contributes to the strengthening of mass interchange reducing the response time of the neutralizer with oil. The mode of supply of the reagent-neutralizer should be continuous as when the supply of the reagent is ceased, the process of neutralizing hydrogen sulfide discontinues. The laboratory tests made it possible to select the best neutralizer Desoulfon-SNPCH-1200, to determine its minimum specific consumption and the temperature of heating oil. The application of this reagent-neutralizer will allow doing the effective oil preparation at the loading point of the Borodino field. The amount of Desoulfon-SNPCH-1200 needed to neutralize the mercaptans depends on their content in oil and the required degree of reduction. The usual proportion in processing is 4-5 ppm of Desoulfon-SNPCH-1200 at 1 ppm of mercaptans.