The Experts below are selected from a list of 29793 Experts worldwide ranked by ideXlab platform

Bedri Yuksel - One of the best experts on this subject based on the ideXlab platform.

  • the use of ethanol gasoline blend as a Fuel in an si engine
    Renewable Energy, 2004
    Co-Authors: Fikret Yuksel, Bedri Yuksel
    Abstract:

    Abstract One of the major problems for the successful application of gasoline–alcohol mixtures as a Motor Fuel is the realization of a stable homogeneous liquid phase. To overcome this problem, a new carburetor was designed. With the use of this new carburetor, not only the phase problem was solved but also the alcohol ratio in the total Fuel was increased. By using ethanol–gasoline blend, the availability analysis of a spark-ignition engine was experimentally investigated. Sixty percent ethanol and 40% gasoline blend was exploited to test the performance, the Fuel consumption, and the exhaust emissions. As a result of this study, it is seen that a new dual Fuel system could be serviceable by making simple modifications on the carburetor and these modifications would not cause complications in the carburetor system.

  • the use of ethanol gasoline blend as a Fuel in an si engine
    Renewable Energy, 2004
    Co-Authors: Fikret Yuksel, Bedri Yuksel
    Abstract:

    One of the major problems for the successful application of gasoline–alcohol mixtures as a Motor Fuel is the realization of a stable homogeneous liquid phase. To overcome this problem, a new carburetor was designed. With the use of this new carburetor, not only the phase problem was solved but also the alcohol ratio in the total Fuel was increased.

I. Landälv - One of the best experts on this subject based on the ideXlab platform.

Vladimir M. Kapustin - One of the best experts on this subject based on the ideXlab platform.

  • Novel strategy to develop the technology of high-octane alternative Fuel based on low-octane gasoline Fischer-Tropsch process
    Fuel, 2020
    Co-Authors: Mikhail A. Ershov, Dmitry Potanin, Alyona Gueseva, Tamer M.m. Abdellatief, Vladimir M. Kapustin
    Abstract:

    Abstract Gasoline fraction of Fischer-Tropsch process due to poor quality has a low detonation resistance and high content of olefinic hydrocarbons. This research article introduces novel and simple strategy to produce high-octane alternative Fuel based on low-octane gasoline Fischer-Tropsch process via new two-stage processes in Fischer-Tropsch synthesis involving isomerization of alkenes and methoxylation process. Isomerization process became one of the best gasoline production sources, as it gives a high-octane product. The study of the process of isomerization of gasoline Fischer-Tropsch on zeolite is carried out on a flow-through installation with a microreactor. Furthermore, the product of isomerization of gasoline Fischer-Tropsch fraction obtained at the previous stage is used as a feed for the other stage called methoxylation. The reaction for methoxylation process is carried out in an autoclave using a six-fold excess of methanol based on the C4-C7 olefinic hydrocarbons contained in the feedstock. Thanks to the methoxylation process, the product contains high-octane ethers, which made it possible to reduce olefinic hydrocarbons. The resulting gasoline fraction can be used as a base Fuel for commercial gasoline, or alternative Motor Fuel. Further blending of the gasoline fraction with aromatic hydrocarbons and alcohols, which can also be obtained by processing synthesis gas, will allow producing high-quality high-octane alternative Fuels.

Fikret Yuksel - One of the best experts on this subject based on the ideXlab platform.

  • the use of ethanol gasoline blend as a Fuel in an si engine
    Renewable Energy, 2004
    Co-Authors: Fikret Yuksel, Bedri Yuksel
    Abstract:

    Abstract One of the major problems for the successful application of gasoline–alcohol mixtures as a Motor Fuel is the realization of a stable homogeneous liquid phase. To overcome this problem, a new carburetor was designed. With the use of this new carburetor, not only the phase problem was solved but also the alcohol ratio in the total Fuel was increased. By using ethanol–gasoline blend, the availability analysis of a spark-ignition engine was experimentally investigated. Sixty percent ethanol and 40% gasoline blend was exploited to test the performance, the Fuel consumption, and the exhaust emissions. As a result of this study, it is seen that a new dual Fuel system could be serviceable by making simple modifications on the carburetor and these modifications would not cause complications in the carburetor system.

  • the use of ethanol gasoline blend as a Fuel in an si engine
    Renewable Energy, 2004
    Co-Authors: Fikret Yuksel, Bedri Yuksel
    Abstract:

    One of the major problems for the successful application of gasoline–alcohol mixtures as a Motor Fuel is the realization of a stable homogeneous liquid phase. To overcome this problem, a new carburetor was designed. With the use of this new carburetor, not only the phase problem was solved but also the alcohol ratio in the total Fuel was increased.

Karin Pettersson - One of the best experts on this subject based on the ideXlab platform.

  • black liquor gasification based biorefineries determining factors for economic performance and co2 emission balances
    2011
    Co-Authors: Karin Pettersson
    Abstract:

    Biorefineries constitute an attractive future development option for the pulp and paper industry, allowing mills to produce not only pulp or paper but also other value-added products. Black liquor gasification (BLG) is currently being developed as an alternative technology for energy and chemical recovery in kraft pulp and paper mills. The technology enables the mill to increase the internal electricity generation or produce chemicals such as Motor Fuels. This thesis investigates the influence of different factors, including choice of product, type of mill, alternative investments, opportunities for carbon capture and storage (CCS) and future energy market conditions, on the economic performance and CO2 emission balances for BLG-based biorefinery concepts. Implementation of biorefinery concepts such as BLG with electricity production in future market pulp mills can be achieved without making the mill dependent on external wood Fuel. However, implementation in integrated pulp and paper mills requires external wood Fuel and reduces the amount of wood Fuel available for other applications, thereby increasing the CO2 emissions from those applications. The results show that BLG with Motor Fuel production could be profitable for both market and integrated mills, whereas BLG with electricity generation is primarily an attractive option for market mills. For mills that operate with conventional recovery boiler technology, potentially profitable biorefinery concepts include lignin extraction or Motor Fuel production from gasified wood Fuel. Few of the biorefinery concepts investigated in this work achieve a significant reduction of CO2 emissions, especially for integrated mills. However, if commercially available, CCS could contribute to significant CO2 emissions reduction and enhanced profitability for future energy market conditions characterized by a high CO2 emissions charge, for both combustion- and gasification-based biorefinery concepts. Steam-saving measures could also significantly improve the economic performance as well as the CO2 emission balances, especially for biorefinery concepts that use external wood Fuel. The results also show that even if the recovery boiler has not reached the end of its technical lifetime, it could nevertheless be attractive for mills to consider investment in a smaller BLG plant.

  • co2 emission balances for different black liquor gasification biorefinery concepts for production of electricity or second generation liquid bioFuels
    Energy, 2010
    Co-Authors: Karin Pettersson, Simon Harvey
    Abstract:

    Black liquor gasification (BLG) is currently being developed as an alternative technology for energy and chemical recovery at chemical pulp mills. This study examines how different assumptions regarding systems surrounding the pulp mill affect the CO2 emission balances for different BLG concepts. The syngas from the gasification process can be used for different applications; this study considers production of renewable Motor Fuels and electricity generation. Both a market pulp mill and an integrated pulp and paper mill are considered as host mill for the BLG plant. Furthermore, the consequences of limited availability of biomass are shown, i.e., increasing the use of biomass in a mill is not necessarily CO2-neutral. The results show that the potential to reduce CO2 emissions by introducing BLG is generally much higher for a market pulp mill than for an integrated pulp and paper mill. Electricity generation from the syngas is favoured when assuming high grid electricity CO2 emissions where as Motor Fuel production is favoured when assuming low grid electricity CO2 emissions. When considering the consequences of limited availability of biomass, the CO2 emission balances are strongly affected, in some cases changing the results from a decrease to an increase of the CO2 emissions.

  • co2 emission balances for different black liquor gasification biorefinery concepts for production of electricity or second generation liquid bioFuels
    Proceedings of ECOS Cracow-Gliwice Poland June 24 – 27 2008, 2008
    Co-Authors: Karin Pettersson, Simon Harvey
    Abstract:

    Black liquor gasification (BLG) is currently being developed as an alternative technology for energy and chemical recovery at chemical pulp mills. In the gasification process the black liquor is converted to a syngas, which can be used for e.g. production of renewable Motor Fuels or electricity generation. This study examines how different assumptions regarding systems surrounding the pulpmill, for example the electricity generation system, affect the CO2 emission balances for different BLG concepts. Different final products are considered, including DME, methanol, FT-diesel and electricity. Both a market pulp mill and an integrated pulp and paper mill are considered as host mill for the BLG plant to investigate how the mill influences the CO2 balances. Furthermore, the consequences of limited availability of biomass are shown, i.e. biomass is not necessarily considered as CO2-neutral. The results show that the potential to reduce CO2 emissions by introducing BLG is generally much higher for a market pulp mill than for an integrated pulp and paper mill. Electricity generation from the syngas is favoured when assuming high grid electricity CO2 emissions where as Motor Fuel production is favoured when assuming low grid electricity CO2 emissions. When considering the consequences of limited availability of biomass, the CO2 emission balances are strongly affected, in some cases changing the results from a decrease to an increase of the CO2 emissions.