Experimental investigation of synthesis gas production by methane reforming with flue gas over a NiO-Al ₂ O ₃ catalyst: Reforming characteristics and pressure drop

TY - JOUR

T1 - Experimental investigation of synthesis gas production by methane reforming with flue gas over a NiO-Al 2 O 3 catalyst

T2 - Reforming characteristics and pressure drop

AU - Pashchenko, Dmitry

N1 - Publisher Copyright: © 2019 Hydrogen Energy Publications LLC

PY - 2019/3/15

Y1 - 2019/3/15

N2 - An experimental investigation of methane reforming with flue gases obtained by combustion of methane with the ratio of air to methane of 1 is carried out over NiO-Al 2 O 3 catalyst. The set of experiments was conducted to understand the effects of operational parameters such as temperature, pressure, residence time and inlet gas composition on the conversion of the reactants and the yields of products. It is found that at the residence time above 4 kg cat s/mol the methane conversion has a value close to equilibrium. A change in pressure from 1 to 5 bar has a negligible effect on methane conversion, not more than 1–2% for various operating parameters. The steam addition to the inlet reaction gas mixture increases the methane conversion considerably; especially at the temperature range from 500 to 800 °C. The steam addition to the inlet mixture has a notable on synthesis gas composition, especially at the temperature range below 700°C. Moreover, the experiments have been carried out to determine the pressure drop and the loss factor in a packed-fixed bed of a methane reformer. A characteristic quadratic dependence of the pressure loss versus velocity ΔP=f(v 2 ) is observed for all experiments.

AB - An experimental investigation of methane reforming with flue gases obtained by combustion of methane with the ratio of air to methane of 1 is carried out over NiO-Al 2 O 3 catalyst. The set of experiments was conducted to understand the effects of operational parameters such as temperature, pressure, residence time and inlet gas composition on the conversion of the reactants and the yields of products. It is found that at the residence time above 4 kg cat s/mol the methane conversion has a value close to equilibrium. A change in pressure from 1 to 5 bar has a negligible effect on methane conversion, not more than 1–2% for various operating parameters. The steam addition to the inlet reaction gas mixture increases the methane conversion considerably; especially at the temperature range from 500 to 800 °C. The steam addition to the inlet mixture has a notable on synthesis gas composition, especially at the temperature range below 700°C. Moreover, the experiments have been carried out to determine the pressure drop and the loss factor in a packed-fixed bed of a methane reformer. A characteristic quadratic dependence of the pressure loss versus velocity ΔP=f(v 2 ) is observed for all experiments.

KW - Catalyst

KW - Methane reforming

KW - Nickel catalyst

KW - Packed bed

KW - Syngas production

UR - http://www.scopus.com/inward/record.url?scp=85061705615&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2019.01.250

DO - 10.1016/j.ijhydene.2019.01.250

M3 - 文章

AN - SCOPUS:85061705615

SN - 0360-3199

VL - 44

SP - 7073

EP - 7082

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 14

ER -