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4491 search results for:

Hydrocarbons (HC) 

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  1. 2024 | OriginalPaper | Chapter

    Hexachlorobutadiene (HCBD)

    Hexachlorobutadiene (HCBD) is a synthetic halogenated aliphatic compound that contains chlorinated hydrocarbons. Its widespread environmental presence could be attributed to process of chemical production and emission from industrial activities …

    Authors:
    Kanchan Kumari, Deepak Marathe
    Published in:
    Pollutants of Global Concern (2024)
  2. 01-06-2024 | OriginalPaper

    Dichromatic irradiation studies of radical formation with TEA CO2 laser heating of C2H3Br/CF2HCl mixtures

    One of the most widespread ways to initiate unimolecular reactions and obtain free radicals with a high degree of vibrational and rotational energy is through infrared multiphoton dissociation (IRMPD) in polyatomic molecules (Letokhov 1989 ). The …

  3. 2024 | OriginalPaper | Chapter

    CFD Analysis of Combustion of Gasoline, Hydrogen, CNG and HCNG Blends in Internal Combustion Engine

    Despite the rise of renewables and EVs, IC engines are expected to be useful in applications requiring a reliable, compact, remote and scalable power source. As a result, improving engine performance and addressing environmental concerns …

    Authors:
    Soumil Sahu, Soumay Srivastava, Akhil Ailaboina, Krishnakant Agrawal, Kaushik Saha
    Published in:
    IGEC Transactions, Volume 1: Energy Conversion and Management (2024)
  4. 2024 | OriginalPaper | Chapter

    Biodegradation Pathways of Hexachlorocyclohexane (HCH): A Case Study

    Lindane is the γ-isomer of hexachlorocyclohexane, used extensively in modern agriculture. It enters into the food chain and adversely impacts various life forms. The pesent paper discusses the nature's microbial remediation mechanism of …

    Authors:
    Divya Agarwal, Anil K. Gupta, Mohammad Yunus
    Published in:
    Organic Micropollutants in Aquatic and Terrestrial Environments (2024)
  5. 2023 | OriginalPaper | Chapter

    Features of the Behavior of Oil Hydrocarbons in the Barents Sea in 2019–2020

    The results of studies of the distribution and composition of aliphatic hydrocarbons (AHCs) in the suspended particulate matter and bottom sediments of the Barents Sea are presented based on the data of expeditions in 2019 and 2020. R/V Akademik …

    Authors:
    E. V. Koltovskaya, I. A. Nemirovskaya
    Published in:
    Complex Investigation of the World Ocean (CIWO-2023) (2023)
  6. 2023 | OriginalPaper | Chapter

    Qualitative and Quantitative Assessment of Hydrocarbons Composition in the Water of the Kara Sea Northeastern Part

    As part of the voyage of the research vessel «Akademik Boris Petrov», studies were carried out on organic pollution of surface and bottom waters in the Kara Sea northeastern part. Determination of the qualitative and quantitative composition of …

    Authors:
    Y. S. Tkachenko, E. A. Tikhonova
    Published in:
    Complex Investigation of the World Ocean (CIWO-2023) (2023)
  7. 2023 | OriginalPaper | Chapter

    Hydrocarbons

    Hydrocarbons (HCs), i.e. compounds composed only of carbon and hydrogen, are the simplest organic compounds. They can occur as linear or branched chain molecules, as closed ring structures or as so-called aromatic compounds. Let us additionally …

    Author:
    Torsten Schmiermund
    Published in:
    The Chemistry Knowledge for Firefighters (2023)
  8. 30-10-2021 | OriginalPaper

    The influence of dual-catalyst bed system of zeolitic and metal oxide catalysts on the production of valuable hydrocarbons during co-pyrolysis of rice straw and waste tire

    The influences of acidic (HZSM-5) and basic oxide (CaO/MgO) catalysts and their combinations on yield and quality of pyrolytic oil, derived from co-pyrolysis of rice straw (RS) and waste tire (WT), were investigated. The pyrolytic oil from …

  9. 20-04-2022 | OriginalPaper

    Experimental Analysis of Conjoint Effect of Semi-Cooled Exhaust Recirculation on Combustion of Liquid Phase Hydrocarbons Under Uniform Magnetic Fields

    In the context of increasing the energy utilization of hastily depleting conventional hydrocarbon based fuels and regulating the associated emissions, the present experimental work investigates the conjoint effect of partially cooled exhaust gas …

  10. 2023 | OriginalPaper | Chapter

    Experimental Investigation on Performance and Emissions of HCCI Engine Using Kusum Oil Biodiesel Blends

    In recent times, with more thermal efficiency, low NOx and particulate matter, Homogeneous Charge Compression Engines (HCCI Engines) emerged for renewed interest. However, knocking and misfiring were considered as classic problems in HCCI engines.

    Authors:
    N. V. Mahesh Babu Talupula, P. Srinivasa Rao, B. Sudheer Prem Kumar
    Published in:
    Energy and Exergy for Sustainable and Clean Environment, Volume 2 (2023)
  11. 2022 | OriginalPaper | Chapter

    Hydrocarbons from DI Diesel Engines

    HydrocarbonHydrocarbon (HC) emissions from direct injection (DI) diesel engines are mainly due to fuel injected and mixed beyond lean combustion limit during ignition delay and fuel effusing from the nozzle sac at low pressure. The concept has …

    Authors:
    Dr. P. A. Lakshminarayanan, Yogesh V. Aghav
    Published in:
    Modelling Diesel Combustion (2022)
  12. 2022 | OriginalPaper | Chapter

    Content of Natural Hydrocarbons in Arctic and Subarctic Soils

    The assessment of the natural background of the hydrocarbon (HC) content in soils is an urgent task, the solution of which will allow us to objectively determine soil pollution and promptly introduce restrictions on industrial technologies of oil …

    Author:
    Evgeny Lodygin
    Published in:
    New Prospects in Environmental Geosciences and Hydrogeosciences (2022)
  13. 2022 | OriginalPaper | Chapter

    Thermodynamic Investigations of a Turbocharged Homogeneous Charge Compression Ignition (HCCI) Engine Running on Wet Ethanol

    To study the performance of a turbocharged wet ethanol operated homogeneous charge compression ignition (HCCI) engine-based thermal system at various operating parameters, thermodynamic investigations were conducted. The goal of this thermodynamic …

    Authors:
    Mohd Asjad Siddiqui, Abdul Khaliq, Rajesh Kumar
    Published in:
    Technology Innovation in Mechanical Engineering (2022)
  14. 06-10-2021 | ReviewPaper

    Microalgae–Bacteria Consortia: A Review on the Degradation of Polycyclic Aromatic Hydrocarbons (PAHs)

    Polycyclic aromatic hydrocarbons (PAHs) are considered as import contaminants portraying diverse ecological and public health apprehension due to their properties such as water solubility, toxicity, bioaccumulation potential and recalcitrant …

  15. 2022 | OriginalPaper | Chapter

    Study on High Efficiency Gasoline HCCI Lean Combustion Engines

    The aim of this paper is to study the way of maximizing the thermal efficiency of gasoline engine. On the one hand, through the study of exergy loss in the combustion process, the thermodynamic parameters of low exergy loss in the combustion …

    Authors:
    Wanhua Su, Hao Yu, Ming Li
    Published in:
    Gasoline Compression Ignition Technology (2022)
  16. 04-09-2021 | OriginalPaper

    Metaln+-Metalδ+ pair sites steer C-C coupling for selective CO2 photoreduction to C2 hydrocarbons

    The major obstacle for selective CO2 photoreduction to C2 hydrocarbons lies in the difficulty of C-C coupling, which is usually restrained by the repulsive dipole-dipole interaction between adjacent carbonaceous intermediates. Herein, we first …

  17. 01-11-2021 | OriginalPaper

    Determination of aliphatic hydrocarbons in surface sediments of Mangueira Lagoon (RS—Brazil)

    The Lagoa Mangueira (Magueira Lagoon) is a hydrological system with unique characteristics and extreme regional importance. Its water has been used for years, mainly in the production of irrigated rice in a practically closed recycling system. The …

  18. 2022 | OriginalPaper | Chapter

    State of the Art in Low-Temperature Combustion Technologies: HCCI, PCCI, and RCCI

    The need for higher thermal efficiency, lower NOx and Particulate Matter (PM) emissions has attracted researchers to modify the conventional combustion in IC engines. The after-treatment devices are deployed to meet the emission regulations but …

    Authors:
    Balendra V. S. Chauhan, Imran Sayyed, Ajitanshu Vedrantam, Akshay Garg, Sawan Bharti, Mritunjay Shukla
    Published in:
    Advanced Combustion for Sustainable Transport (2022)
  19. 2022 | OriginalPaper | Chapter

    Fuel-Rich Natural Gas Conversion in HCCI Engines with Ozone and Dimethyl Ether as Ignition Promoters: A Kinetic and Exergetic Analysis

    Fuel-rich operated HCCI engines are suitable for the polygeneration of work, heat, and base chemicals like synthesis gas (CO + H2). Under favorable conditions, these engines are exergetically more efficient than separate steam reformer and …

    Authors:
    Dominik Freund, Christoph Horn, Burak Atakan
    Published in:
    Active Flow and Combustion Control 2021 (2022)
  20. Open Access 05-11-2020 | OriginalPaper

    Efficient hydrothermal deoxygenation of tall oil fatty acids into n-paraffinic hydrocarbons and alcohols in the presence of aqueous formic acid

    Hydrothermal deoxygenation of tall oil fatty acids (TOFA) was investigated in the presence of aqueous formic acid (0.5–7.5 wt%) as a H2 donor in the presence of subcritical H2O pressure (569–599 K). Pd and Ru nanoparticles supported on carbon (5% …

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