A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Carbon building materials from coal char: durable materials for solid carbon sequestration to enable hydrogen production by coal pyrolysis
A technoeconomic analyses show that manufacturing hydrogen by coal pyrolysis can be cost competitive with steam reforming of methane for certain ranges of natural gas cost, and certain ranges of solid carbon co-product value. For 2007 natural gas prices, a volumetric carbon co-product value similar to ordinary concrete and less than structural clay products suffices for cost equivalence of hydrogen from coal pyrolysis and steam reforming of methane. A coal pyrolysis route to hydrogen can be economic. Hydrogen from coal pyrolysis has less than half the CO2 emissions as hydrogen from steam reforming of methane. The mechanical strength of prototype carbon building materials, such as coal tar pitch-bonded char and metallurgical coke is comparable to the strength of fired clay brick and concrete. Carbon building materials are strong enough to be used in place of conventional building material. Compared with coal burning and Portland cement manufacturing, the combination of energy from coal-pyrolysis derived hydrogen, and carbon building materials, can reduce carbon dioxide emissions by 68% with little impact on land spoilage, assessed by volume extracted from mines and quarries. The additional coal mining necessitated by not using the carbon in coal for energy is compensated by the reduced stone quarrying for the limestone and aggregate supplanted by using the carbon as building materials.
Carbon building materials from coal char: durable materials for solid carbon sequestration to enable hydrogen production by coal pyrolysis
A technoeconomic analyses show that manufacturing hydrogen by coal pyrolysis can be cost competitive with steam reforming of methane for certain ranges of natural gas cost, and certain ranges of solid carbon co-product value. For 2007 natural gas prices, a volumetric carbon co-product value similar to ordinary concrete and less than structural clay products suffices for cost equivalence of hydrogen from coal pyrolysis and steam reforming of methane. A coal pyrolysis route to hydrogen can be economic. Hydrogen from coal pyrolysis has less than half the CO2 emissions as hydrogen from steam reforming of methane. The mechanical strength of prototype carbon building materials, such as coal tar pitch-bonded char and metallurgical coke is comparable to the strength of fired clay brick and concrete. Carbon building materials are strong enough to be used in place of conventional building material. Compared with coal burning and Portland cement manufacturing, the combination of energy from coal-pyrolysis derived hydrogen, and carbon building materials, can reduce carbon dioxide emissions by 68% with little impact on land spoilage, assessed by volume extracted from mines and quarries. The additional coal mining necessitated by not using the carbon in coal for energy is compensated by the reduced stone quarrying for the limestone and aggregate supplanted by using the carbon as building materials.
Carbon building materials from coal char: durable materials for solid carbon sequestration to enable hydrogen production by coal pyrolysis
Kohlenstoffbaustoffe aus carbonisierter Kohle: Haltbare Werkstoffe für die Eliminierung von festem Kohlenstoff zwecks Ermöglichung der Wasserstoffproduktion durch Pyrolyse von Kohle
Halloran, John W. (author) / Guerra, Zuimdie (author)
2010
11 Seiten, 4 Bilder, 3 Tabellen, 22 Quellen
Conference paper
English
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