Martin Staš

@vscht.cz

Department of Petroleum Technology and Alternative Fuels
University of Chemistry and Technology Prague

Martin Staš


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https://researchid.co/martin.stas
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Scopus Publications

Scopus Publications

  • A group-type analysis of polycyclic aromatic sulfur compounds in crude oil samples using column-switching ligand exchange chromatography
    Rámí Dimitrov, Martin Staš, Siarhei Skoblia, Josef Chudoba, Lukáš Matějovský, Jan T. Andersson, Milan Pospíšil
    Fuel, 2026
  • Polycyclic Aromatic Hydrocarbons in Liquid Fuels
    Martin Staš, Tomáš Hlinčík
    Chemicke Listy, 2026
    Polycyclic aromatic hydrocarbons (PAHs) are a group of aromatic compounds containing two or more fused aromatic rings. In liquid fuels, they are considered undesirable components, as some PAHs have proven carcinogenic effects, and their combustion contributes to the formation of harmful particulate matter, negatively impacting both the environment and human health. Among the liquid fuels discussed in this article, PAH content is monitored only in selected diesel-type fuels. The most commonly used diesel fuel in the Czech Republic and across the EU is B7 diesel, which contains a maximum of 7 % (V/V) bio-component and must comply with the requirements of the EN 590 standard. This standard sets a maximum PAH content of 8 % (m/m) for B7 diesel. For aviation fuels and automotive gasolines, no specific PAH limits are defined; the relevant standards only specify maximum permissible levels of total aromatic hydrocarbons.
  • Mild Steel Corrosion in Gasoline Blends with Acetone-Butanol-Ethanol and Inhibition Efficiencies of Amines
    Lukáš Matějovský, Martin Staš, Konstantin Li, Petr Baroš, Marie Kudrnová, Jan Macák
    Energy and Fuels, 2025
    This study investigated the corrosion behavior of mild steel exposed to ABE–gasoline blends (ABE-GBs). Electrochemical methods and static immersion tests were used to determine the corrosion current densities, polarization resistance, and corrosion rates. The results showed that pure ABE-GBs did not compromise the compatibility of mild steel. The material exhibited good passivation, with corrosion current densities remaining below 0.01 μA·cm–2. In contrast, contamination of ABE-GBs led to a significant increase in corrosion activity, with current densities reaching up to 2.89 μA·cm–2. Immersion tests confirmed high corrosion rates in these contaminated blends, with values up to 30.4 μm/year. Furthermore, the presence of ABE reduced the inhibition efficiency of amines. At 100 mg/L, only diethylenetriamine (DETA) and triethylenetetramine (TETA) maintained an efficiency above 95%. However, even these inhibitors may lose effectiveness in contaminated blends with higher ABE content over time. Overall, contaminated ABE-GBs can be more aggressive toward mild steel than ethanol- or butanol-based gasoline blends.
  • Properties and Analysis of Solid Alternative Fuels
    Martin Staš, Zdeněk Beňo
    Paliva, 2025
    As environmental challenges grow and efforts to reduce dependence on fossil fuels intensify, alternative fuels, including biofuels, are gaining attention. This article provides an overview of the technical requirements and testing methods for solid alternative fuels, focusing on two key types: solid biofuels and solid recovered fuel (SRF). It summarizes their essential properties, available testing methods, and the significance of individual analyses for evaluation and practical use. Solid biofuels, such as wood pellets, briquettes, and wood chips, play a vital role in the transition to renewable energy. They offer an eco-friendly alternative to fossil fuels, enhancing energy selfsufficiency and reducing CO₂ emissions. SRF, derived from processed waste, enables the efficient use of materials that would otherwise end up in landfills. However, strict quality control is necessary to ensure safe and environmentally responsible combustion, particularly regarding harmful substances. Both fuel types are crucial for sustainable energy management, supporting the circular economy and environmental protection.
  • Determination of Hydrocarbons in Gaseous and Liquid Fuels
    Martin Staš, Hugo Kittel, Pavel Šimáček
    Paliva, 2025
    This article focuses on the analysis of hydrocarbon compounds in both conventional fossil fuels and alternative gaseous and liquid fuels. The main objective is to provide a comprehensive overview of the types of fuels that are monitored for total hydrocarbon content or for the presence of individual hydrocarbon compounds, the reasons for such monitoring, and the analytical methods used for this purpose. The text places particular emphasis on methods and parameters defined by technical standards, although in some cases it also addresses supplementary tests that are not directly required by normative regulations. The technical requirements and test methods for conventional fossil fuels and certain alternative fuels are defined in relevant technical standards, which establish a range of parameters essential for assessing fuel quality. Many of these monitored parameters have been discussed in detail in previous parts of this series of publications, which are dedicated to presenting common methods for evaluating both conventional and alternative fuels. The first four articles in this series focused on the determination of elements and non-hydrocarbon compounds in fuels [1], the evaluation of physical [2] and chemical [3] properties of fuels, and methods to assess the purity of fuels and combustion characteristics [4]. This current article presents the monitored parameters related to hydrocarbon content in both gaseous and liquid conventional and alternative fuels, as well as the analytical tests used for this purpose. It also addresses the reasons why monitoring hydrocarbon compounds in the respective fuels is important; specifically, the role that individual hydrocarbons play in terms of fuel quality, safety, or environmental impact. Among the test methods, the article focuses on those defined by technical standards, which form the standardized framework for evaluating various types of fuels. In some cases, additional or alternative procedures are also mentioned, which, although not standardized, can help expand knowledge about the composition and properties of fuels.
  • The use of amines as steel corrosion inhibitors in butanol-gasoline blends
    Lukáš Matějovský, Jan Vysloužil, Martin Staš, Petr Baroš, Marie Kudrnová, Jan Macák
    Fuel, 2024
  • Amines as steel corrosion inhibitors in ethanol-gasoline blends
    Lukáš Matějovský, Martin Staš, Luděk Jelínek, Marie Kudrnová, Petr Baroš, Alena Michalcová, Olga Pleyer, Jan Macák
    Fuel, 2024
  • METODY HODNOCENÍ ČISTOTY A SPALOVACÍCH CHARAKTERISTIK MOTOROVÝCH PALIV
    Martin Staš, Hugo Kittel, Lukáš Matějovský, Pavel Šimáček
    Paliva, 2024
    This article is the fourth in a series of articles aimed at introducing common methods for evaluating both conventional and alternative fuels. In previous articles, we focused on the determination of elements and non-hydrocarbon compounds, as well as the evaluation of physical and chemical properties. This article focuses on other not yet-discussed properties such as gum content, total impurities, ash content, carbonization residue, octane number, cetane number, and cetane index. The main goal of the article is to provide an overview of which fuels are used, why these properties are monitored, and what methods are used for this monitoring. Emphasis is placed mainly on standardized tests, but in some cases, additional tests not required by the standard are also discussed. Conventional and alternative fuels must meet the technical requirements defined by the relevant product standards. The fulfillment of these requirements is to ensure that, in addition to other properties, the relevant fuel will be of good quality and that the engine will not be damaged during its use. In addition to the technical requirements for fuels, the product standards also define the tests that are used to verify that the fuel meets the defined requirements. As mentioned above, this article is another in a series of articles aimed at presenting methods for evaluating both conventional and alternative fuels. In this article, we present an overview of the properties of fuels that have not yet been discussed in this series of articles. These are properties associated with the content of impurities present in the fuel (total impurities) or those impurities, or products that may arise during thermal stress on the fuel in the combustion system (ash content, carbonization residue, gum content). Furthermore, in this text, we will focus on the properties of fuels that characterize the fuel susceptibility to knocking (octane number) or the so-called hard running of the engine (cetane number and cetane index). In the article, we present for which fuels these properties are monitored, what are the limit values of these parameters and what are the reasons for their monitoring. We also present the testing methods that are used to determine these properties.
  • General Methods for the Analysis of Chemical Properties of Fuels
    Martin Staš, Hugo Kittel, Lukáš Matějovský, Eliška Vachková, Pavel Šimáček
    Paliva, 2024
    This article is the third in a series of articles focused on presenting common methods for evaluating conventional and alternative fuels. The first two articles of the series were devoted to the determination of elements and non-hydrocarbon compounds in fuels [1]) and the determination of the physical properties of fuels [2]). This text presents an overview of the chemical properties determined for individual fuels. The chemical properties, acidity and alkalinity of fuels, content of unsaturated compounds, aniline point, water content, oxidation stability, and corrosive properties of fuels are presented in this article. The main goal of the article is to provide a comprehensive overview of which fuels are monitored, why they are monitored, and what methods are used for this monitoring. The emphasis is mainly on standardized parameters and tests, but in some cases, non-standardized tests are also discussed, or (additional) determinations not required by standards. For conventional and alternative fuels, several physical chemical, or other properties are used to evaluate the quality of these fuels. In this article, we present an overview of the chemical properties that are monitored for liquid and gaseous conventional and alternative fuels. These are acidity and alkalinity, content of unsaturated compounds, aniline point, water content, oxidation stability, and corrosive effects of fuels. In the article, we present the testing methods that are used to monitor these properties. Furthermore, we also present the reasons why these properties are monitored for individual fuels. Emphasis is placed on standardized parameters and tests, i.e., those prescribed by the relevant standards for individual fuels. However, parameters and alternative methods are also discussed, which are not prescribed by any standard for the respective fuels, but are supplementary determinations. The determination of elements and hydrocarbon and non-hydrocarbon compounds in fuels potentially falls within the scope of this article. However, since two separate articles [1] were devoted to these parameters, they will not be discussed here
  • Properties and Analysis of Liquid Alternative Fuels III: Vegetable Oils and Hydrotreated Vegetable Oils
    Martin Staš, Dan Vrtiška, Hugo Kittel, Pavel Šimáček
    Paliva, 2023
    The importance of alternative fuels and biofuels is constantly growing due to energy security, sustainability, and social responsibility. This article is another in a series of review articles designed to recapitulate information on the required properties of individual alternative fuels, their testing methods, and the significance of individual analyses. This article is focused on fuels based on vegetable oils and hydrotreated vegetable oils. Rapeseed oil is a triglyceride-based fuel that can be burned in modified diesel engines. Modification of the engine consists in the inclusion of preheating of the fuel or modification of the injection system, due to the high viscosity of this fuel. Rapeseed oil and vegetable oils in general have a higher oxygen content than conventional diesel fuels, which is associated with a lower energy content than that of diesel fuels. Compared to diesel, vegetable oils have a higher density, a lower cetane number, and a significantly higher flash point and viscosity. Vegetable oils also have low oxidative stability. Physical properties monitored in rapeseed oils include density, viscosity, flash point, and calorific value. From the chemical properties, the iodine number, acidity number, water content, calcium, magnesium, sulfur, and phosphorus are monitored. From the other properties, oxidative stability, ignitability, ash content, carbonation residue, content of impurities, and appearance are monitored for rapeseed oils. HVO is a high-quality fuel for standard diesel engines. Due to the hydrocarbon character of HVO, no engine modification is required. HVO has a very high cetane number, very good low-temperature properties, optimal viscosity, high flash point, excellent oxidative stability, and a very low content of undesirable contaminants such as aromatic hydrocarbons, sulfur, nitrogen, and oxygen-containing compounds. Compared to diesel fuels, HVO has a lower density. The observed qualitative parameters and testing methods are very similar to those of conventional diesel fuel B7. The main difference lies in the modified determination of aromatic hydrocarbons.
  • General Methods for the Analysis of Physical Properties of Fuels
    Martin Staš, Hugo Kittel, Lukáš Matějovský, Lukáš Kejla, Pavel Šimáček
    Paliva, 2023
  • General Methods for Fuel Analysis I: Analysis of Elements and Nonhydrocarbon Compounds
    Martin Staš, Petr Baroš, Lukáš Matějovský, Hugo Kittel, Pavel Šimáček
    Paliva, 2023
  • Properties and Analysis of Liquid Alternative Fuels II: Alcohols and Ethers
    Martin Staš, Lukáš Matějovský, Zlata Mužíková, Jiří Kroufek, Pavel Šimáček
    Paliva, 2023
  • Methods for Testing the Steel Corrosion Inhibition in Alcohol-Gasoline Blends Using Diethylenetriamine
    Petr Baroš, Lukáš Matějovský, Martin Staš, Jan Macák, Jan Vysloužil, Milan Pospíšil
    Energy and Fuels, 2022
  • Corrosion Aggressiveness of Ethanol-Gasoline and Butanol-Gasoline Blends on Steel: Application of Electrochemical Impedance Spectroscopy
    Petr Baroš, Lukáš Matějovský, Jan Macák, Martin Staš, Milan Pospíšil
    Energy and Fuels, 2022
  • Properties and Analysis of Liquid Alternative Fuels I: Fatty Acid Esters
    Martin Staš, Zlata Mužíková, Pavel Šimáček
    Paliva, 2022
  • Properties and Analysis of Gaseous Alternative Fuels II: Fuels Based on Natural Gas and Biogas
    Martin Staš, Jiří Kroufek, Tomáš Hlinčík, Pavel Šimáček
    Paliva, 2022
  • Properties and Analysis of Gaseous Alternative Fuels I: Hydrogen and liquified petroleum gases
    Martin Staš, Jiří Kroufek, Tomáš Hlinčík, Pavel Šimáček
    Paliva, 2022
  • Electrochemical Study of Mild Steel Resistance in Butanol-Gasoline and Ethanol-Gasoline Blends
    Lukáš Matějovský, Petr Baroš, Martin Staš, Milan Pospíšil, Jan Macák
    Energy and Fuels, 2021
  • Influence of pressure on product composition and hydrogen consumption in hydrotreating of gas oil and rapeseed oil blends over a nimo catalyst
    Josef Blažek, Daria Toullis, Petr Straka, Martin Staš, Pavel Šimáček
    Catalysts, 2021
  • Electrochemical corrosion tests in low-conductivity ethanol-gasoline blends: Application of supporting electrolyte for contaminated E5 and E10 fuels
    Lukáš Matějovský, Martin Staš, Jan Macák
    ACS Omega, 2021
  • Two-Dimensional Gas Chromatography Characterization of Pyrolysis Bio-oils: A Review
    Martin Staš, Miloš Auersvald, Petr Vozka
    Energy and Fuels, 2021
  • Electrometric bromine number as a suitable method for the quantitative determination of phenols and olefins in hydrotreated pyrolysis bio-oils
    Miloš Auersvald, Martin Staš, Pavel Šimáček
    Talanta, 2021
  • Electrochemical corrosion tests in an environment of low-conductive ethanol-gasoline blends: Part 1 – Testing of supporting electrolytes
    Lukáš Matějovský, Martin Staš, Karolina Dumská, Milan Pospíšil, Jan Macák
    Journal of Electroanalytical Chemistry, 2021
  • Influence of biomass type on the composition of bio-oils from ablative fast pyrolysis
    Miloš Auersvald, Tomáš Macek, Tim Schulzke, Martin Staš, Pavel Šimáček
    Journal of Analytical and Applied Pyrolysis, 2020
  • Composition and Properties of Rapeseed Oil Hydrotreating Products over CoMo/Al2O3and NiMo/Al2O3Catalysts
    Veronika Váchová, Daria Toullis, Petr Straka, Pavel Šimáček, Martin Staš, Andrej Gdovin, Zdeněk Beňo, Josef Blažek
    Energy and Fuels, 2020
  • Quantitative analysis of pyrolysis bio-oils: A review
    Martin Staš, Miloš Auersvald, Lukáš Kejla, Dan Vrtiška, Jiří Kroufek, David Kubička
    Trac Trends in Analytical Chemistry, 2020
  • Cyclic Potentiometric Polarization and Resistance of Mild Steel in an Environment of Alcohols and Their Blends with Gasoline
    Lukáš Matějovský, Jan Macák, Martin Staš
    ACS Omega, 2019
  • Efficiency of Steel Corrosion Inhibitors in an Environment of Ethanol-Gasoline Blends
    Lukáš Matějovský, Jan Macák, Olga Pleyer, Petr Straka, Martin Staš
    ACS Omega, 2019
  • Quantitative Study of Straw Bio-oil Hydrodeoxygenation over a Sulfided NiMo Catalyst
    Miloš Auersvald, Bogdan Shumeiko, Martin Staš, David Kubička, Josef Chudoba, Pavel Šimáček
    ACS Sustainable Chemistry and Engineering, 2019
  • Hydrotreatment of straw bio-oil from ablative fast pyrolysis to produce suitable refinery intermediates
    Miloš Auersvald, Bogdan Shumeiko, Dan Vrtiška, Petr Straka, Martin Staš, Pavel Šimáček, Josef Blažek, David Kubička
    Fuel, 2019
  • A novel method for the separation of high-molecular-weight saturates from paraffinic petroleum based samples
    Petr Straka, Daniel Maxa, Martin Staš
    Organic Geochemistry, 2019
  • One-stage bio-oil stabilization over a sulphided nimo/al2o3 catalyst
    European Biomass Conference and Exhibition Proceedings, 2019
  • Biochemical Detection of Cholinesterase Inhibitors in Water with a New Two-Component Chromogenic Reagent
    V. Pitschmann, L. Matějovský, D. Vetchý, M. Staš
    Journal of Analytical Chemistry, 2018
  • Hydrodeoxygenation of pyrolysis bio-oils from ablative flash pyrolysis of straw: An analytical study
    European Biomass Conference and Exhibition Proceedings, 2018
  • Study of Corrosion Effects of Oxidized Ethanol-Gasoline Blends on Metallic Materials
    Lukáš Matějovský, Jan Macák, Milan Pospíšil, Martin Staš, Petr Baroš, Aneta Krausová
    Energy and Fuels, 2018
  • Metal corrosion and the efficiency of corrosion inhibitors in less conductive media
    Lukáš Matějovský, Jan Macák, Olga Pleyer, Martin Staš
    Journal of Visualized Experiments, 2018
  • Petroleomic Characterization of Pyrolysis Bio-oils: A Review
    Martin Staš, Josef Chudoba, David Kubička, Josef Blažek, Milan Pospíšil
    Energy and Fuels, 2017
  • Study of Corrosion of Metallic Materials in Ethanol-Gasoline Blends: Application of Electrochemical Methods
    Lukáš Matějovský, Jan Macák, Milan Pospíšil, Petr Baroš, Martin Staš, Aneta Krausová
    Energy and Fuels, 2017
  • Petroleomics: Theoretical background and applications to characterize petroleum fractions and biofuels
    Chemicke Listy, 2017
  • Application of orbitrap mass spectrometry for analysis of model bio-oil compounds and fast pyrolysis bio-oils from different biomass sources
    Martin Staš, Josef Chudoba, Miloš Auersvald, David Kubička, Stefan Conrad, Tim Schulzke, Milan Pospíšil
    Journal of Analytical and Applied Pyrolysis, 2017
  • Influence of rapeseed oil hydrotreating on hydrogenation activity of CoMo catalyst
    Daria Kochetkova, Josef Blažek, Pavel Šimáček, Martin Staš, Zdeněk Beňo
    Fuel Processing Technology, 2016
  • Overview of applications of pyrolysis bio-oil
    Chemicke Listy, 2015
  • Chemical characterization of pyrolysis bio-oil: Application of orbitrap mass spectrometry
    Martin Staš, Josef Chudoba, David Kubička, Milan Pospíšil
    Energy and Fuels, 2015
  • Overview of analytical methods used for chemical characterization of pyrolysis bio-oil
    Martin Staš, David Kubička, Josef Chudoba, Milan Pospíšil
    Energy and Fuels, 2014