DOI: 10.18503/1995-2732-2025-23-3-59-68
Abstract
Problem Statement (Relevance). The growing volume of boring sludge generated during oil and gas production requires the development of effective methods for its disposal. Traditional methods such as burial and injection into deep horizons are associated with environmental risks. One of the promising methods of waste recycling is pyrolysis, which reduces the toxicity of waste and allows to obtain valuable products. Objectives are to study the pyrolysis process of boring sludge and the characteristics of the resulting products. Methods Applied. During the experiments, the analysis of raw materials, thermal analysis, pyrolysis in a laboratory unit with a fixed layer at a temperature of 550°C, as well as the study of the composition and properties of pyrolysis products were carried out. Data on the material balance, the output of liquid and solid fractions, as well as gaseous products were obtained. Originality. It consists in a detailed study of the chemical composition of the pyrolysis liquid by gas chromatography, as well as in evaluating the properties of the solid residue. Result. It was found that the organic part of the pyrolysis liquid consists of 62% alkanes, which makes it suitable for use as a fuel. The solid residue, containing mainly the mineral part of the sludge, can be used in construction or as a sorbent. Practical Relevance. The data obtained during the study confirm that pyrolysis is an effective method of processing boring sludge with the possibility of extracting useful products, which helps reduce environmental damage and optimize the processes of the oil and gas industry.
Keywords
boring sludge, pyrolysis, waste utilization, thermal degradation, secondary products.
For citation
Valeeva A.R., Khaziakhmedova R.M., Valiullina A.I., Zabelkin S.A., Grachev A.N., Kiselev D.Y. Study of Pyrolysis Products of Boring Sludge. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2025, vol. 23, no. 3, pp. 59-68. https://doi.org/10.18503/1995-2732-2025-23-3-59-68
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