Title: Development of CuFeMnAlO_4+δ oxygen carrier with high attrition resistance and 50-kWth methane/air chemical looping combustion tests

Abstract

A Copper-Ferri-Manganese-Aluminate spinel (CuFeMnAlO_4+δ) oxygen carrier, developed at the US Department of Energy’s (DOE) National Energy Technology Laboratory (NETL), shows promising results for chemical looping combustion with methane. Attrition resistance of the spinel oxygen carrier (160–600 µm) produced by a wet agglomeration method was significantly higher than that observed previously with a Copper-Ferri-Aluminate (CuFeAlO₄) oxygen carrier. Improved attrition resistance of the novel carrier can be attributed to minimal alumina phase segregation and minimal carbon formation. Heats of reaction measured by differential scanning calorimetry indicated exothermicity during reduction with methane. The total oxygen transfer capacity of the material was about 10.5 wt% at 850 °C. The attrition resistance and the oxygen transfer capacity of the carrier prepared at a commercial manufacturing facility (180 kg) were very similar to observed values during the development phase with the lab scale preparations. The material displays satisfactory methane conversion and significantly high particle durability during a 54 h test campaign conducted in NETL’s 50-kWth chemical looping dual fluid bed reactor unit at temperatures ranging from 700 to 900 °C. Low oxygen carrier make-up cost, due to the use of natural ore and pigment grade raw materials during synthesis and very low attrition rates, exceeded themore » performance goals determined by systems studies.« less

Authors:

Siriwardane, Ranjani ^[1]; Riley, Jarrett ^[2]; Benincosa, William ^[3]; Bayham, Samuel ^[1]; Bobek, Michael ^[3]; Straub, Douglas ^[1]; Weber, Justin ^[1]

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+ Show Author Affiliations

1. National Energy Technology Lab. (NETL), Morgantown, WV (United States)
2. National Energy Technology Lab. (NETL), Morgantown, WV (United States); Leidos Research Support, Morgantown, WV (United States)
3. National Energy Technology Lab. (NETL), Morgantown, WV (United States); Oak Ridge Inst. for Science and Education (ORISE), Morgantown, WV (United States)

Publication Date:

Mon Jan 25 00:00:00 EST 2021

Research Org.:

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

Sponsoring Org.:

USDOE Office of Fossil Energy (FE)

OSTI Identifier:

1833597

Alternate Identifier(s):

OSTI ID: 2325416

Report Number(s):

DOE/NETL-2021/2836
Journal ID: ISSN 0306-2619

Grant/Contract Number:  

FWP-1022461

Resource Type:

Accepted Manuscript

Journal Name:

Applied Energy

Additional Journal Information:

Journal Volume: 286; Journal ID: ISSN 0306-2619

Publisher:

Elsevier

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; CuFeMnAlO4+δ oxygen carrier; Methane chemical looping combustion t; Oxygen carrier commercial preparation; Attrition resistant oxygen carrier