The Experts below are selected from a list of 3810 Experts worldwide ranked by ideXlab platform

Jose E.a. Graciano - One of the best experts on this subject based on the ideXlab platform.

  • conversion of co2 rich natural gas to liquid transportation fuels via trireforming and fischer tropsch synthesis model based assessment
    Industrial & Engineering Chemistry Research, 2018
    Co-Authors: Jose E.a. Graciano, Benoît Chachuat, Rita M.b. Alves
    Abstract:

    This paper presents a model-based analysis of a process coupling trireforming and Fischer–Tropsch technologies for the production of liquid fuels from CO2-rich natural gas. The process also includes an upgrading section based on hydrocracking, a separation section, a water gas shift unit, and a Rankine cycle unit for recovering the excess thermal energy produced by the Fischer–Tropsch Reactor. Simulations are carried out in the process simulator Aspen Plus using standard unit operation models where applicable, while modeling the nonconventional units, such as the Fischer–Tropsch and hydrocracking Reactors, using Aspen Custom Modeler. The proposed process could achieve a carbon conversion efficiency upward of 50% in the analyzed scenario, despite a natural gas feedstock with 30 mol % CO2. The analysis also reveals that the plant-wide electricity consumption could be covered nearly entirely by the Rankine cycle unit, enabling significant cost savings alongside a reduction of the overall global warming poten...

  • Conversion of CO2‑Rich Natural Gas to Liquid Transportation Fuels via Trireforming and Fischer–Tropsch Synthesis: Model-Based Assessment
    2018
    Co-Authors: Jose E.a. Graciano, Benoît Chachuat, Rita M.b. Alves
    Abstract:

    This paper presents a model-based analysis of a process coupling trireforming and Fischer–Tropsch technologies for the production of liquid fuels from CO2-rich natural gas. The process also includes an upgrading section based on hydrocracking, a separation section, a water gas shift unit, and a Rankine cycle unit for recovering the excess thermal energy produced by the Fischer–Tropsch Reactor. Simulations are carried out in the process simulator Aspen Plus using standard unit operation models where applicable, while modeling the nonconventional units, such as the Fischer–Tropsch and hydrocracking Reactors, using Aspen Custom Modeler. The proposed process could achieve a carbon conversion efficiency upward of 50% in the analyzed scenario, despite a natural gas feedstock with 30 mol % CO2. The analysis also reveals that the plant-wide electricity consumption could be covered nearly entirely by the Rankine cycle unit, enabling significant cost savings alongside a reduction of the overall global warming potential by about 10% in this specific case study. Finally, the results of a detailed economic assessment indicate that cheap natural gas is a prerequisite to the economic viability of the process, which would remain attractive in the current US scenario, yet presents a major impediment for its deployment in Brazil

Stigsson, Mendeley C Data) - One of the best experts on this subject based on the ideXlab platform.

Rita M.b. Alves - One of the best experts on this subject based on the ideXlab platform.

  • conversion of co2 rich natural gas to liquid transportation fuels via trireforming and fischer tropsch synthesis model based assessment
    Industrial & Engineering Chemistry Research, 2018
    Co-Authors: Jose E.a. Graciano, Benoît Chachuat, Rita M.b. Alves
    Abstract:

    This paper presents a model-based analysis of a process coupling trireforming and Fischer–Tropsch technologies for the production of liquid fuels from CO2-rich natural gas. The process also includes an upgrading section based on hydrocracking, a separation section, a water gas shift unit, and a Rankine cycle unit for recovering the excess thermal energy produced by the Fischer–Tropsch Reactor. Simulations are carried out in the process simulator Aspen Plus using standard unit operation models where applicable, while modeling the nonconventional units, such as the Fischer–Tropsch and hydrocracking Reactors, using Aspen Custom Modeler. The proposed process could achieve a carbon conversion efficiency upward of 50% in the analyzed scenario, despite a natural gas feedstock with 30 mol % CO2. The analysis also reveals that the plant-wide electricity consumption could be covered nearly entirely by the Rankine cycle unit, enabling significant cost savings alongside a reduction of the overall global warming poten...

  • Conversion of CO2‑Rich Natural Gas to Liquid Transportation Fuels via Trireforming and Fischer–Tropsch Synthesis: Model-Based Assessment
    2018
    Co-Authors: Jose E.a. Graciano, Benoît Chachuat, Rita M.b. Alves
    Abstract:

    This paper presents a model-based analysis of a process coupling trireforming and Fischer–Tropsch technologies for the production of liquid fuels from CO2-rich natural gas. The process also includes an upgrading section based on hydrocracking, a separation section, a water gas shift unit, and a Rankine cycle unit for recovering the excess thermal energy produced by the Fischer–Tropsch Reactor. Simulations are carried out in the process simulator Aspen Plus using standard unit operation models where applicable, while modeling the nonconventional units, such as the Fischer–Tropsch and hydrocracking Reactors, using Aspen Custom Modeler. The proposed process could achieve a carbon conversion efficiency upward of 50% in the analyzed scenario, despite a natural gas feedstock with 30 mol % CO2. The analysis also reveals that the plant-wide electricity consumption could be covered nearly entirely by the Rankine cycle unit, enabling significant cost savings alongside a reduction of the overall global warming potential by about 10% in this specific case study. Finally, the results of a detailed economic assessment indicate that cheap natural gas is a prerequisite to the economic viability of the process, which would remain attractive in the current US scenario, yet presents a major impediment for its deployment in Brazil

Kevin J Smith - One of the best experts on this subject based on the ideXlab platform.

  • effects of co particle size on the stability of co al2o3 and re co al2o3 catalysts in a slurry phase fischer tropsch Reactor
    Energy & Fuels, 2016
    Co-Authors: Pooneh Ghasvareh, Kevin J Smith
    Abstract:

    The stability of a series of Co/Al2O3 and Re–Co/Al2O3 Fischer–Tropsch (FT) catalysts, with varying Co particle size, was measured in a continuous flow, stirred tank Reactor operated at 220 °C, 2.1 MPa and with a H2/CO = 2/1 synthesis gas for periods up to 190 h time-on-stream (TOS). Results showed that catalyst stability was dependent upon the Co particle size, the degree-of-reduction (DOR) of the catalyst precursor, and the CO conversion. At the chosen operating conditions, carbon deposition was the main cause of catalyst deactivation and the initial rate of carbon deposition per active Co site increased with increased Co particle size (dCo = 2–22 nm) when measured at approximately the same CO conversion level. On the 15 wt % Co/Al2O3 catalyst the initial rate of carbon deposition increased with CO conversion (CO conversion ≤40%) whereas, on the 1.2 wt %Re-12 wt %Co/Al2O3 catalyst, the initial rate of carbon deposition decreased with increased CO conversion (CO conversions >60%) due to high concentration...

Benoît Chachuat - One of the best experts on this subject based on the ideXlab platform.

  • conversion of co2 rich natural gas to liquid transportation fuels via trireforming and fischer tropsch synthesis model based assessment
    Industrial & Engineering Chemistry Research, 2018
    Co-Authors: Jose E.a. Graciano, Benoît Chachuat, Rita M.b. Alves
    Abstract:

    This paper presents a model-based analysis of a process coupling trireforming and Fischer–Tropsch technologies for the production of liquid fuels from CO2-rich natural gas. The process also includes an upgrading section based on hydrocracking, a separation section, a water gas shift unit, and a Rankine cycle unit for recovering the excess thermal energy produced by the Fischer–Tropsch Reactor. Simulations are carried out in the process simulator Aspen Plus using standard unit operation models where applicable, while modeling the nonconventional units, such as the Fischer–Tropsch and hydrocracking Reactors, using Aspen Custom Modeler. The proposed process could achieve a carbon conversion efficiency upward of 50% in the analyzed scenario, despite a natural gas feedstock with 30 mol % CO2. The analysis also reveals that the plant-wide electricity consumption could be covered nearly entirely by the Rankine cycle unit, enabling significant cost savings alongside a reduction of the overall global warming poten...

  • Conversion of CO2‑Rich Natural Gas to Liquid Transportation Fuels via Trireforming and Fischer–Tropsch Synthesis: Model-Based Assessment
    2018
    Co-Authors: Jose E.a. Graciano, Benoît Chachuat, Rita M.b. Alves
    Abstract:

    This paper presents a model-based analysis of a process coupling trireforming and Fischer–Tropsch technologies for the production of liquid fuels from CO2-rich natural gas. The process also includes an upgrading section based on hydrocracking, a separation section, a water gas shift unit, and a Rankine cycle unit for recovering the excess thermal energy produced by the Fischer–Tropsch Reactor. Simulations are carried out in the process simulator Aspen Plus using standard unit operation models where applicable, while modeling the nonconventional units, such as the Fischer–Tropsch and hydrocracking Reactors, using Aspen Custom Modeler. The proposed process could achieve a carbon conversion efficiency upward of 50% in the analyzed scenario, despite a natural gas feedstock with 30 mol % CO2. The analysis also reveals that the plant-wide electricity consumption could be covered nearly entirely by the Rankine cycle unit, enabling significant cost savings alongside a reduction of the overall global warming potential by about 10% in this specific case study. Finally, the results of a detailed economic assessment indicate that cheap natural gas is a prerequisite to the economic viability of the process, which would remain attractive in the current US scenario, yet presents a major impediment for its deployment in Brazil