TY - JOUR

T1 - High-Temperature Two-Dimensional Gas Chromatography with Flow Modulator for Analyzing Complex Objects of Catalytic Processing

AU - Dolgushev, Pavel A.

AU - Shashkov, Mikhail V.

N1 - The work was carried out with the financial support of the Ministry of Science and Higher Education of the Russian Federation (project # AAAAA21-121011390053-4). The authors have no relevant financial or non-financial interests to disclose. Публикация для корректировки.

PY - 2023/4

Y1 - 2023/4

N2 - This paper is dedicated to the development of the method of high-temperature two-dimensional gas chromatography (HT-GC × GC) using a flow modulator for the analysis of a number of complex high-boiling samples. A method has been developed that allows to analyze complex samples with a temperature up to 360 °C using a combination of non-polar and mid-polar columns. We have achieved separations of such complex mixtures as products of thermal cracking of slack wax, vacuum gas oil (VGO) and the products of its processing, a product of catalytic processing of sludge sediments pyrolysate and products of polyethylene pyrolysis. The method makes it possible to achieve good resolution in the previously listed samples between the groups of aromatic and aliphatic hydrocarbons. In addition, the group of aliphatic hydrocarbons was resolved into separate constituent classes: alkanes, alkenes, alkadienes, and cycloalkanes. A good resolution was reached for sludge pyrolysis samples between the groups of polar compounds and aromatic and aliphatic hydrocarbons. Comparisons with other standardized methods illustrate the high potential of high-temperature two-dimensional gas chromatography for the analysis of high-boiling mixtures.

AB - This paper is dedicated to the development of the method of high-temperature two-dimensional gas chromatography (HT-GC × GC) using a flow modulator for the analysis of a number of complex high-boiling samples. A method has been developed that allows to analyze complex samples with a temperature up to 360 °C using a combination of non-polar and mid-polar columns. We have achieved separations of such complex mixtures as products of thermal cracking of slack wax, vacuum gas oil (VGO) and the products of its processing, a product of catalytic processing of sludge sediments pyrolysate and products of polyethylene pyrolysis. The method makes it possible to achieve good resolution in the previously listed samples between the groups of aromatic and aliphatic hydrocarbons. In addition, the group of aliphatic hydrocarbons was resolved into separate constituent classes: alkanes, alkenes, alkadienes, and cycloalkanes. A good resolution was reached for sludge pyrolysis samples between the groups of polar compounds and aromatic and aliphatic hydrocarbons. Comparisons with other standardized methods illustrate the high potential of high-temperature two-dimensional gas chromatography for the analysis of high-boiling mixtures.

KW - Bio-oil

KW - Comprehensive two-dimensional

KW - GC × GC

KW - Gas chromatography

KW - High temperature

KW - Hydrocarbons

KW - Petroleum

KW - Vacuum gas oils

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85150526010&origin=inward&txGid=eb91c99f432101ef661b66e79391c38a

UR - https://www.mendeley.com/catalogue/582feb3c-9eda-3bcc-81ab-b972658be7ed/

U2 - 10.1007/s10337-022-04210-7

DO - 10.1007/s10337-022-04210-7

M3 - Article

VL - 86

SP - 267

EP - 283

JO - Chromatographia

JF - Chromatographia

SN - 0009-5893

IS - 4

ER -