Operation of a 50-kWth chemical looping combustion test facility under autothermal conditions

Bayham, Samuel; Straub, Douglas; Weber, Justin

doi:10.1016/j.ijggc.2019.05.022

Operation of a 50-kW_th chemical looping combustion test facility under autothermal conditions

Journal Article · Sun May 26 00:00:00 EDT 2019 · International Journal of Greenhouse Gas Control

DOI:https://doi.org/10.1016/j.ijggc.2019.05.022· OSTI ID:1582387

Bayham, Samuel ^[1]; Straub, Douglas ^[1]; Weber, Justin ^[1]

National Energy Technology Lab. (NETL), Morgantown, WV (United States)

The United States Department of Energy is developing transformational fossil fuel combustion technologies that result in more efficient power cycles and/or substantial reductions in GHG emissions. Chemical Looping Combustion (CLC) has the potential to achieve a lower cost of electricity than a supercritical pulverized coal power plant with an amine absorption system. Although the concept and research on chemical looping has a long history, CLC has numerous technical issues that must be addressed prior to a commercial debut. This effort is directed toward the following major issues for CLC: (1) demonstrating continuous solids handling, operability, and reactor performance at autothermal conditions and (2) preliminary assessments of oxygen carrier attrition and relative material make-up costs. These are critical issues that should be addressed under realistic conditions prior to directing resources toward larger scale demonstrations. This paper will also describe NETL’s small 50-kWth natural gas circulating CLC test facility located in Morgantown, WV. Despite its small size, this experimental test unit has operated at autothermal conditions for 11 h using a copper-iron-alumina oxygen carrier developed at NETL. Here, this paper will describe the test facility and operating experiences using NETL’s “Gen 2.0” oxygen carrier material. Natural gas conversion to CO2 ranged from 70 to 90% over approximately 75 oxidation-reduction cycles during the autothermal operating period. Estimates for the process specific attrition rate during autothermal operation are also presented. Finally, estimates for the oxygen carrier makeup cost, specific to the NETL process configuration, are several orders of magnitude greater than the NETL target. Future work should focus on reducing the oxygen carrier material cost and improving the attrition resistance of the oxygen carrier material under autothermal test conditions.

View Accepted Manuscript (DOE)

Research Organization:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)

Sponsoring Organization:: USDOE; USDOE Office of Fossil Energy (FE)

OSTI ID:: 1582387

Alternate ID(s):: OSTI ID: 1780019

Report Number(s):: NA

Journal Information:: International Journal of Greenhouse Gas Control, Journal Name: International Journal of Greenhouse Gas Control Journal Issue: C Vol. 87; ISSN 1750-5836

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Data for: Operation of a 50-kWth Chemical Looping Combustion Test Facility Under Autothermal Conditions Bayham, Sam https://doi.org/10.17632/3gm4dkbzpg The current record is supplemented by this dataset	dataset	January 2019
Data for: Operation of a 50-kWth Chemical Looping Combustion Test Facility Under Autothermal Conditions Bayham, Sam https://doi.org/10.17632/3gm4dkbzpg.1 The current record is supplemented by this dataset	dataset	January 2019

Operation of a 50-kWth chemical looping combustion test facility under autothermal conditions

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