The Experts below are selected from a list of 5211 Experts worldwide ranked by ideXlab platform

Thomas Kempka - One of the best experts on this subject based on the ideXlab platform.

  • underground coal Gasification with extended co2 utilization as economic and carbon neutral approach to address energy and fertilizer supply shortages in bangladesh
    General Assembly European Geosciences Union (Vienna Austria 2014), 2014
    Co-Authors: Natalie Nakaten, Rafiqul Islam, Thomas Kempka
    Abstract:

    UCG facilitates deep-seated coal seam utilization in the Jamalganj deposit (Bangladesh) by producing synthesis Gas for e lectricity and fertilizer production. Based on previous studies which assessed UCG combined with carbon utilization in a urea process, we further investigated excess CO2 utilization by means of enhanced Gas recovery (EGR) at the Bahkrabad Gas field. Our tec hno-economic modeling results demonstrate that an economic and carbon neutral UCG operation with urea production a nd EGR is feasible. Thus, this approach introduces a bridging technology that can tackle Bangladesh’s fertilizer and power supply shortages in addition to increasing Gas recovery from Bangladesh’s depleting Natural Gas Deposits. © 2013 The Authors. Published by Elsevier Ltd. Selection and peer-review under responsibility of GHGT.

  • underground coal Gasification with extended co2 utilization an economic and carbon neutral approach to tackle energy and fertilizer supply shortages in bangladesh
    Energy Procedia, 2014
    Co-Authors: Natalie Nakaten, Rafiqul Islam, Thomas Kempka
    Abstract:

    Abstract UCG facilitates deep-seated coal seam utilization in the Jamalganj deposit (Bangladesh) by producing synthesis Gas for electricity and fertilizer production. Based on previous studies which assessed UCG combined with carbon utilization in a urea process, we further investigated excess CO 2 utilization by means of enhanced Gas recovery (EGR) at the Bahkrabad Gas field. Our techno-economic modeling results demonstrate that an economic and carbon neutral UCG operation with urea production and EGR is feasible. Thus, this approach introduces a bridging technology that can tackle Bangladesh's fertilizer and power supply shortages in addition to increasing Gas recovery from Bangladesh's depleting Natural Gas Deposits.

Natalie Nakaten - One of the best experts on this subject based on the ideXlab platform.

  • underground coal Gasification with extended co2 utilization as economic and carbon neutral approach to address energy and fertilizer supply shortages in bangladesh
    General Assembly European Geosciences Union (Vienna Austria 2014), 2014
    Co-Authors: Natalie Nakaten, Rafiqul Islam, Thomas Kempka
    Abstract:

    UCG facilitates deep-seated coal seam utilization in the Jamalganj deposit (Bangladesh) by producing synthesis Gas for e lectricity and fertilizer production. Based on previous studies which assessed UCG combined with carbon utilization in a urea process, we further investigated excess CO2 utilization by means of enhanced Gas recovery (EGR) at the Bahkrabad Gas field. Our tec hno-economic modeling results demonstrate that an economic and carbon neutral UCG operation with urea production a nd EGR is feasible. Thus, this approach introduces a bridging technology that can tackle Bangladesh’s fertilizer and power supply shortages in addition to increasing Gas recovery from Bangladesh’s depleting Natural Gas Deposits. © 2013 The Authors. Published by Elsevier Ltd. Selection and peer-review under responsibility of GHGT.

  • underground coal Gasification with extended co2 utilization an economic and carbon neutral approach to tackle energy and fertilizer supply shortages in bangladesh
    Energy Procedia, 2014
    Co-Authors: Natalie Nakaten, Rafiqul Islam, Thomas Kempka
    Abstract:

    Abstract UCG facilitates deep-seated coal seam utilization in the Jamalganj deposit (Bangladesh) by producing synthesis Gas for electricity and fertilizer production. Based on previous studies which assessed UCG combined with carbon utilization in a urea process, we further investigated excess CO 2 utilization by means of enhanced Gas recovery (EGR) at the Bahkrabad Gas field. Our techno-economic modeling results demonstrate that an economic and carbon neutral UCG operation with urea production and EGR is feasible. Thus, this approach introduces a bridging technology that can tackle Bangladesh's fertilizer and power supply shortages in addition to increasing Gas recovery from Bangladesh's depleting Natural Gas Deposits.

Rafiqul Islam - One of the best experts on this subject based on the ideXlab platform.

  • underground coal Gasification with extended co2 utilization as economic and carbon neutral approach to address energy and fertilizer supply shortages in bangladesh
    General Assembly European Geosciences Union (Vienna Austria 2014), 2014
    Co-Authors: Natalie Nakaten, Rafiqul Islam, Thomas Kempka
    Abstract:

    UCG facilitates deep-seated coal seam utilization in the Jamalganj deposit (Bangladesh) by producing synthesis Gas for e lectricity and fertilizer production. Based on previous studies which assessed UCG combined with carbon utilization in a urea process, we further investigated excess CO2 utilization by means of enhanced Gas recovery (EGR) at the Bahkrabad Gas field. Our tec hno-economic modeling results demonstrate that an economic and carbon neutral UCG operation with urea production a nd EGR is feasible. Thus, this approach introduces a bridging technology that can tackle Bangladesh’s fertilizer and power supply shortages in addition to increasing Gas recovery from Bangladesh’s depleting Natural Gas Deposits. © 2013 The Authors. Published by Elsevier Ltd. Selection and peer-review under responsibility of GHGT.

  • underground coal Gasification with extended co2 utilization an economic and carbon neutral approach to tackle energy and fertilizer supply shortages in bangladesh
    Energy Procedia, 2014
    Co-Authors: Natalie Nakaten, Rafiqul Islam, Thomas Kempka
    Abstract:

    Abstract UCG facilitates deep-seated coal seam utilization in the Jamalganj deposit (Bangladesh) by producing synthesis Gas for electricity and fertilizer production. Based on previous studies which assessed UCG combined with carbon utilization in a urea process, we further investigated excess CO 2 utilization by means of enhanced Gas recovery (EGR) at the Bahkrabad Gas field. Our techno-economic modeling results demonstrate that an economic and carbon neutral UCG operation with urea production and EGR is feasible. Thus, this approach introduces a bridging technology that can tackle Bangladesh's fertilizer and power supply shortages in addition to increasing Gas recovery from Bangladesh's depleting Natural Gas Deposits.

Abigail Barnes - One of the best experts on this subject based on the ideXlab platform.

  • a bridge too far building off ramps on the shale Gas superhighway
    Social Science Research Network, 2013
    Co-Authors: Patrick Parenteau, Abigail Barnes
    Abstract:

    Energy policy in the United States is once again at a crossroads. Hydraulic fracturing combined with the breakthrough technology of horizontal drilling has opened up a vast store of Natural Gas Deposits formerly locked deep beneath the earth. Experts are calling Natural Gas a foundational fuel for the 21st century and a bridge to a cleaner, more climate-friendly energy future. At the same time the pace of climate change is accelerating, the damage to human and Natural communities is mounting, and the window of opportunity to avoid catastrophic consequences later this century is closing fast. We cannot negotiate the laws of physics. Bold and decisive action is needed to decarbonize the energy sector with all deliberate speed. Depending on how it is used, Natural Gas could either be part of the solution to climate change or it could perpetuate our dependence on fossil fuels. At the combustion stage Gas is a less carbon intensive fuel than coal. But whether it is better for the climate depends on how well its life cycle methane emissions, which are at present inadequately quantified, can be controlled. However, even with negligible methane leakage, a massive investment in a new — albeit environmentally preferable — fossil fuel infrastructure threatens to stall the rapidly emerging markets for renewables and stifle efficiency enhancements. Based on the weight of evidence amassed by the world’s leading climate scientists, we have reached a critical juncture for investments in the electricity sector. What happens in the next five, ten, and twenty years is vastly more important than what happens in the next fifty to a hundred years.This article argues that Gas cannot provide a bridge to a safe climate. Absent a coherent set of policies to insure that Gas does not crowd out renewables, we face another carbon lock-in that will take a half-century to undo. To avoid this dead end, we propose four “off ramp” policies. First, Congress must adopt a graduated carbon tax that helps reduce the deficit, provides rebates to low-income taxpayers, and invests a modest amount in clean energy. While implementing this tax may not be politically feasible at the moment, the merits of a well-designed tax on carbon pollution are too compelling to ignore forever. A number of countries have adopted carbon taxes including Australia, China, Finland, India and Japan. Second, the energy playing field must be leveled, which requires ending subsidies for fossil fuels, closing regulatory loopholes that favor Gas, and providing tax and other incentives to allow quicker and deeper penetration of renewables into the electricity market. Third, energy efficiency must be ramped up through cost-effective measures with high rates of return and job creation benefits. Fourth, Gas and renewables should be integrated in a complementary fashion through long-term planning and better forecasting, widespread deployment of smart grid technologies, and using wind and solar as hedges against Gas price volatility. Finally we call on President Obama to make good on his pledge to “respond to the threat of climate change, knowing that the failure to do so would betray our children and future generations.” The primary responsibility of the president is to protect Americans from existential threats like climate change. President Obama’s legacy may well be defined by how vigorously he uses the authority he already has under the Clean Air Act and other laws to lower GHG emissions, and how well he uses the bully pulpit to galvanize public support to dislodge a recalcitrant Congress and chart a new energy path for the nation and the world.

Walter A. Barnhardt - One of the best experts on this subject based on the ideXlab platform.

  • shallow water pockmark formation in temperate estuaries a consideration of origins in the western gulf of maine with special focus on belfast bay
    Marine Geology, 2006
    Co-Authors: Jeffrey N Rogers, Joseph T. Kelley, Daniel F. Belknap, Allen Gontz, Walter A. Barnhardt
    Abstract:

    Abstract A systematic mapping program incorporating more than 5000 km of side scan sonar and seismic reflection tracklines in the western Gulf of Maine has identified more than 70 biogenic Natural Gas Deposits, occupying 311 km2 in nearshore muddy embayments. Many of these embayments also contain pockmark fields, with some exhibiting geologically active characteristics including the observance of plumes of escaping fluids and sediment. Pockmarks, hemispherically shaped depressions of various size and depths, formed through fluid escape of Gas and/or pore water, are sometimes found within or outside Gas fields, although many Gas fields lack pockmarks altogether. Although the origin of the Natural Gas remains unclear, if coastal environments at times of lower sea level were similar to the present, numerous lake, wetland, valley fill and estuarine sources of organic-rich material may have formed on the inner shelf. If these Deposits survived transgression and remain buried, they are potential Gas sources. Intensive mapping of the Belfast Bay pockmark field in 1998 produced the first nearly continuous side scan sonar mosaic of a Gulf of Maine pockmark field with a corresponding 3-dimensional geological model generated from seismic data. Statistical analysis of pockmark geometry, Gas deposit loci, and subsurface evidence for Gas-enhanced reflectors suggest that Gas migration from deeper lateral sources along permeable subsurface strata may be the mechanism for pockmark formation in areas lacking Gas-curtain seismic reflections. The coarse-grained transgressive ravinement unconformity between Pleistocene glacial-marine mud and Holocene mud may act as a conduit for distributing methane to the field's margins.