TY - JOUR

T1 - Design, scale-up, and operation of a Rh/Ce0.75Zr0.25O2-δ-ƞ-Al2O3/FeCrAl alloy wire mesh honeycomb catalytic module in diesel autothermal reforming

AU - Rogozhnikov, V. N.

AU - Kuzin, N. A.

AU - Snytnikov, P. V.

AU - Potemkin, D. I.

AU - Shoynkhorova, T. B.

AU - Simonov, P. A.

AU - Shilov, V. A.

AU - Ruban, N. V.

AU - Kulikov, A. V.

AU - Sobyanin, V. A.

N1 - Publisher Copyright: © 2019 Elsevier B.V. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.

PY - 2019/10/15

Y1 - 2019/10/15

N2 - Catalytic autothermal reforming is considered as one of the most effective methods for production of hydrogen from heavy hydrocarbon fuels for solid oxide fuel cells (SOFC). Diesel is an attractive fuel because of its high energy density, widespread use and well – developed infrastructure. Catalysts supported on structured carriers (e.g. FeCrAl modules) provide controlled reaction conditions throughout the reactor volume that favorably compete, for example, with fixed bed reactors. The use of structured catalysts provides efficient heat and mass transfer, low gas dynamic resistance, and high catalyst performance that facilitates the reduction of catalyst quantity per unit volume of the reactor. The ability to perform the process under controlled optimum conditions leads to increased selectivity and minimizes undesirable side reactions, such as coke formation. In the present work, the active component Rh/Ce0.75Zr0.25O2-δ was supported on FeCrAl metal meshes using Al2O3 as a binding structural component. The obtained catalysts Rh/Ce0.75Zr0.25O2-δ-ƞ-Al2O3/FeCrAl were tested in laboratory and pilot scale reactors in n-hexadecane and diesel autothermal reaction conditions. Winter grade diesel used in the experiments contained up to 31% of aromatics. Operating conditions were found to provide a 100% conversion of n-hexadecane and diesel and stable catalyst activity for a long time-on-stream exposure. The catalysts provided equilibrium product distribution and a maximum syngas (CO + H2) productivity of 3 m3Lcat −1h−1 (STP) at the studied experimental conditions. The produced syngas can be supplied as a fuel for power generation units based on high-temperature solid oxide fuel cells.

AB - Catalytic autothermal reforming is considered as one of the most effective methods for production of hydrogen from heavy hydrocarbon fuels for solid oxide fuel cells (SOFC). Diesel is an attractive fuel because of its high energy density, widespread use and well – developed infrastructure. Catalysts supported on structured carriers (e.g. FeCrAl modules) provide controlled reaction conditions throughout the reactor volume that favorably compete, for example, with fixed bed reactors. The use of structured catalysts provides efficient heat and mass transfer, low gas dynamic resistance, and high catalyst performance that facilitates the reduction of catalyst quantity per unit volume of the reactor. The ability to perform the process under controlled optimum conditions leads to increased selectivity and minimizes undesirable side reactions, such as coke formation. In the present work, the active component Rh/Ce0.75Zr0.25O2-δ was supported on FeCrAl metal meshes using Al2O3 as a binding structural component. The obtained catalysts Rh/Ce0.75Zr0.25O2-δ-ƞ-Al2O3/FeCrAl were tested in laboratory and pilot scale reactors in n-hexadecane and diesel autothermal reaction conditions. Winter grade diesel used in the experiments contained up to 31% of aromatics. Operating conditions were found to provide a 100% conversion of n-hexadecane and diesel and stable catalyst activity for a long time-on-stream exposure. The catalysts provided equilibrium product distribution and a maximum syngas (CO + H2) productivity of 3 m3Lcat −1h−1 (STP) at the studied experimental conditions. The produced syngas can be supplied as a fuel for power generation units based on high-temperature solid oxide fuel cells.

KW - Alumina

KW - Autothermal reforming

KW - Ceria-zirconia

KW - Diesel

KW - Hexadecane

KW - Hydrogen-rich stream

KW - Rhodium

KW - Structured catalyst

KW - Syngas

KW - Wire metal mesh

KW - RICH GAS-PRODUCTION

KW - STEAM

KW - SHIFT REACTOR

KW - FUEL-CELL SYSTEMS

KW - JET FUELS

KW - N-DODECANE

KW - HYDROGEN-PRODUCTION

KW - PARTIAL OXIDATION

KW - CARBON DEPOSITION

KW - BIMETALLIC CATALYSTS

UR - http://www.scopus.com/inward/record.url?scp=85066400923&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2019.05.205

DO - 10.1016/j.cej.2019.05.205

M3 - Article

AN - SCOPUS:85066400923

VL - 374

SP - 511

EP - 519

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

ER -