Steam Conversion of Ethane and Methane–Ethane Mixtures in Membrane Reactor with a Foil from Pd–Ru Alloy

L. P. Didenko; Диденко Л. П.; V. N. Babak; Бабак В. Н.; L. A. Sementsova; Семенцова Л. А.; T. V. Dorofeeva; Дорофеева Т. В.; P. E. Chizhov; Чижов П. Е.; S. V. Gorbunov; Горбунов С. В.

doi:10.31857/S2218117223020037

Steam Conversion of Ethane and Methane–Ethane Mixtures in Membrane Reactor with a Foil from Pd–Ru Alloy

Authors: Didenko L.P.¹, Babak V.N.¹, Sementsova L.A.¹, Dorofeeva T.V.¹, Chizhov P.E.¹, Gorbunov S.V.²
Affiliations:
1. Institute of Problems of Chemical Physics, Russian Academy of Sciences
2. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Issue: Vol 13, No 2 (2023)
Pages: 83-95
Section: Articles
URL: https://rjmseer.com/2218-1172/article/view/674353
DOI: https://doi.org/10.31857/S2218117223020037
EDN: https://elibrary.ru/HYVKWL
ID: 674353

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Abstract

The features of steam conversion of ethane and methane-ethane mixtures containing 5, 10 and 15% ethane in a membrane reactor with a 30 μm thick Pd–Ru foil at temperatures of 1800 and 3600 h^–1 and steam/feed rations of 3 and 5 have been investigated. Comparative experiments with “non-membrane” reaction have shown that in the membrane reactor the feedstock conversion to form H₂ and CO₂ increases and ethane hydrocracking decreases. Increasing the rate of H₂ recovery through the membrane by permeate evacuation leads to an increase in the yield of H₂ and CO₂. With a decrease in the steam/feed ratio from 5 to 3, the ethane hydrocracking and the rate of carbon deposits formation increases. Optimal conditions for steam conversion of ethane and methane-ethane mixtures are T = 773 K, feed space velocity of 1800 h^–1 and steam/feed ratio of 5. The established regularities are similar to those obtained earlier for other types of raw materials (mixtures of methane with propane, propane, n-butane, a mixture simulating the average composition of associated petroleum gas) in this membrane reactor.

Keywords

метан-этановая смесь, этан, паровая конверсия, мембранный реактор

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