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Black Liquor

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Niklas Berglin – One of the best experts on this subject based on the ideXlab platform.

  • Black Liquor gasifier gas turbine cogeneration
    Journal of Engineering for Gas Turbines and Power-transactions of The Asme, 1998
    Co-Authors: Stefano Consonni, Eric David Larson, Thomas G Kreutz, Niklas Berglin

    Abstract:

    The kraft process dominates pulp and paper production worldwide. Black Liquor, a mixture of lignin and inorganic chemicals, is generated in this process as fiber is extracted from wood. At most kraft mills today, Black Liquor is burned in Tomlinson boilers to produce steam for on-site heat and power and to recover the inorganic chemicals for reuse in the process. Globally, the Black Liquor generation rate is about 85,000 MW fuel (or 0.5 million tonnes of dry solids per day), with nearly 50 percent of this in North America. The majority of presently installed Tomlinson boilers will reach the end of their useful lives during the next 5 to 20 years. As a replacement for Tomlinson-based cogeneration, Black Liquor-gasifier/gas turbine cogeneration promises higher electrical efficiency, with prospective environmental, safety, and capital cost benefits for kraft mills. Several companies are pursuing commercialization of Black Liquor gasification for gas turbine applications. This paper presents results of detailed performance modeling of gasifier/gas turbine cogeneration systems using different Black Liquor gasifiers modeled on proposed commercial designs.

  • Black Liquor Gasifier/Gas Turbine Cogeneration
    Journal of Engineering for Gas Turbines and Power-transactions of The Asme, 1998
    Co-Authors: Stefano Consonni, Eric David Larson, Thomas G Kreutz, Niklas Berglin

    Abstract:

    The kraft process dominates pulp and paper production worldwide. Black Liquor, a mixture of lignin and inorganic chemicals, is generated in this process as fiber is extracted from wood. At most kraft mills today, Black Liquor is burned in Tomlinson boilers to produce steam for on-site heat and power and to recover the inorganic chemicals for reuse in the process. Globally, the Black Liquor generation rate is about 85,000 MW fuel (or 0.5 million tonnes of dry solids per day), with nearly 50 percent of this in North America. The majority of presently installed Tomlinson boilers will reach the end of their useful lives during the next 5 to 20 years. As a replacement for Tomlinson-based cogeneration, Black Liquor-gasifier/gas turbine cogeneration promises higher electrical efficiency, with prospective environmental, safety, and capital cost benefits for kraft mills. Several companies are pursuing commercialization of Black Liquor gasification for gas turbine applications. This paper presents results of detailed performance modeling of gasifier/gas turbine cogeneration systems using different Black Liquor gasifiers modeled on proposed commercial designs.

  • Black Liquor-gasifier/gas turbine cogeneration
    Volume 2: Coal Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, 1997
    Co-Authors: Stefano Consonni, Eric David Larson, Niklas Berglin

    Abstract:

    The kraft process dominates pulp and paper production worldwide. Black Liquor, a mixture of lignin and inorganic chemicals, is generated in this process as fiber is extracted from wood. At most kraft mills today, Black Liquor is burned in Tomlinson boilers to produce steam for on-site heat and power and to recover the inorganic chemicals for reuse in the process. Globally, the Black Liquor generation rate is about 85,000 MWfuel (or 0.5 million tonnes of dry solids per day), with nearly 50% of this in North America. The majority of presently-installed Tomlinson boilers will reach the end of their useful lives during the next 15 to 20 years. As a replacement for Tomlinson-based cogeneration, Black Liquor-gasifier/gas turbine cogeneration promises higher electrical efficiency, with prospective environmental, safety, and capital cost benefits for kraft mills. Several companies are pursuing commercialization of Black Liquor gasification for gas turbine applications. This paper presents results of detailed performance modeling of gasifier/gas turbine cogeneration systems using different Black Liquor gasifiers modeled on proposed commercial designs.Copyright © 1997 by ASME

Fuchen Wang – One of the best experts on this subject based on the ideXlab platform.

  • promoted slurryability of petroleum coke water slurry by using Black Liquor as an additive
    Fuel Processing Technology, 2010
    Co-Authors: Xiuli Zhan, Zhijie Zhou, Wanzhong Kang, Fuchen Wang

    Abstract:

    Abstract The purpose of this paper is to prepare the petroleum coke–water slurry with a maximal coke mass fraction and the superior slurry natures using Black Liquor as an additive. The variations of rheological properties, contact angle, fluidity, stability and zeta potential of the coke–water slurry with different Black Liquor dosages were investigated. It was observed that the addition of a Black Liquor dosage around 1.0 wt.% of the petroleum coke remarkably improved the rheological properties, fluidity and stability of the slurry, and the slurry could hold a mass of petroleum coke as high as 70 wt.%, with the superior apparent viscosity, fluidity and stability available for practical utilization.

  • catalytic effect of Black Liquor on the gasification reactivity of petroleum coke
    Applied Energy, 2010
    Co-Authors: Xiuli Zhan, Zhijie Zhou, Fuchen Wang

    Abstract:

    CO2 gasification of petroleum coke using Black Liquor as a catalyst was performed in a thermogravimetric analyzer (TGA) under temperatures 1223-1673 K at ambient pressure to evaluate the effect of Black Liquor loading on petroleum coke gasification. It was found that the gasification reactivity of petroleum coke was improved greatly by Black Liquor. The gasification reactivity was affected by different loading methods in the order: wet grinding > dry grinding > physical impregnation > dry mix. The catalytic activity of Black Liquor was higher than that of pure alkali metal. The effect of temperature on the gasification reactivity of petroleum coke was changed by Black Liquor. The reactivity reaches its maximum at 1573 K. The reactivity of petroleum coke was found higher than that of Shenfu coal when Black Liquor loading is 5 wt.% (of petroleum coke), clearly demonstrating that Black Liquor could be an effective catalyst for petroleum coke gasification.

Stefano Consonni – One of the best experts on this subject based on the ideXlab platform.

  • Black Liquor gasifier gas turbine cogeneration
    Journal of Engineering for Gas Turbines and Power-transactions of The Asme, 1998
    Co-Authors: Stefano Consonni, Eric David Larson, Thomas G Kreutz, Niklas Berglin

    Abstract:

    The kraft process dominates pulp and paper production worldwide. Black Liquor, a mixture of lignin and inorganic chemicals, is generated in this process as fiber is extracted from wood. At most kraft mills today, Black Liquor is burned in Tomlinson boilers to produce steam for on-site heat and power and to recover the inorganic chemicals for reuse in the process. Globally, the Black Liquor generation rate is about 85,000 MW fuel (or 0.5 million tonnes of dry solids per day), with nearly 50 percent of this in North America. The majority of presently installed Tomlinson boilers will reach the end of their useful lives during the next 5 to 20 years. As a replacement for Tomlinson-based cogeneration, Black Liquor-gasifier/gas turbine cogeneration promises higher electrical efficiency, with prospective environmental, safety, and capital cost benefits for kraft mills. Several companies are pursuing commercialization of Black Liquor gasification for gas turbine applications. This paper presents results of detailed performance modeling of gasifier/gas turbine cogeneration systems using different Black Liquor gasifiers modeled on proposed commercial designs.

  • Black Liquor Gasifier/Gas Turbine Cogeneration
    Journal of Engineering for Gas Turbines and Power-transactions of The Asme, 1998
    Co-Authors: Stefano Consonni, Eric David Larson, Thomas G Kreutz, Niklas Berglin

    Abstract:

    The kraft process dominates pulp and paper production worldwide. Black Liquor, a mixture of lignin and inorganic chemicals, is generated in this process as fiber is extracted from wood. At most kraft mills today, Black Liquor is burned in Tomlinson boilers to produce steam for on-site heat and power and to recover the inorganic chemicals for reuse in the process. Globally, the Black Liquor generation rate is about 85,000 MW fuel (or 0.5 million tonnes of dry solids per day), with nearly 50 percent of this in North America. The majority of presently installed Tomlinson boilers will reach the end of their useful lives during the next 5 to 20 years. As a replacement for Tomlinson-based cogeneration, Black Liquor-gasifier/gas turbine cogeneration promises higher electrical efficiency, with prospective environmental, safety, and capital cost benefits for kraft mills. Several companies are pursuing commercialization of Black Liquor gasification for gas turbine applications. This paper presents results of detailed performance modeling of gasifier/gas turbine cogeneration systems using different Black Liquor gasifiers modeled on proposed commercial designs.

  • preliminary economics of Black Liquor gasifier gas turbine cogeneration at pulp and paper mills
    Volume 3: Coal Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, 1998
    Co-Authors: Eric David Larson, Stefano Consonni, Thomas G Kreutz

    Abstract:

    Black Liquor, the lignin-rich byproduct of kraft pulp production, is burned in boiler/steam turbine cogeneration systems at pulp mills today to provide heat and power for onsite use. Black Liquor gasification technologies under development would enable this fuel to be used in gas turbines. This paper reports preliminary economics of 100-MWe scale integrated BlackLiquor gasifier/combined cycles using alternative commercially-proposed gasifier designs. The economics are based on detailed full-load performance modeling and on capital and operating and maintenance costs developed in collaboration with engineers at Bechtel Corporation and Stone and Webster Engineering. Comparisons with conventional boiler/steam turbine systems are included.Copyright © 1998 by ASME