Method for separation of coal conversion products from oxygen carriers

Nasah, Junior; Jensen, Ben; Dyrstad-Cincotta, Nicholas; Gerber, Jackson; Laudal, Daniel; Mann, Michael; Srinivasachar, Srivats

doi:10.1016/j.ijggc.2019.06.018

Title: Method for separation of coal conversion products from oxygen carriers

Journal Article · 05 July 2019 · International Journal of Greenhouse Gas Control

DOI: https://doi.org/10.1016/j.ijggc.2019.06.018 · OSTI ID:1612032

Nasah, Junior ^[1]; Jensen, Ben ^[1]; Dyrstad-Cincotta, Nicholas ^[1]; Gerber, Jackson ^[1]; Laudal, Daniel ^[1]; Mann, Michael ^[1]; Srinivasachar, Srivats ^[2]

Univ. of North Dakota, Grand Forks, ND (United States)
Envergex, LLC, Sturbridge, MA (United States)

Complete fuel conversion represents an important, but unresolved, aspect in Chemical Looping Combustion (CLC). Different system design approaches are currently being investigated to maximize carbon conversion in the fuel reactor. To achieve greater than ninety percent conversion of the fuel in “fluid-bed” type reducers will require that CLC systems be equipped with additional process equipment to ensure that unburnt fuel leaving the reducer is minimized. This paper presents results obtained from a laboratory test system simulating a char stripper design comprising two components; one for separating large char particles, based on material density differentials, and another for removing small char particles from the oxygen carrier (OC) leaving the reducer, based on elutriation. A test unit was designed, built and operated to identify optimum conditions for separating OC material from unburnt solid fuel – char. The results obtained are necessary for designing a high temperature unit operated at temperatures expected within a CLC system.

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Research Organization:: Envergex LLC, Sturbridge, MA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Engineering & Technology. Office of Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Programs

Grant/Contract Number:: SC0013832

OSTI ID:: 1612032

Alternate ID(s):: OSTI ID: 1780444

Journal Information:: International Journal of Greenhouse Gas Control, Vol. 88; ISSN 1750-5836

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 2 works

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