Membrane recovery of hydrogen from gaseous mixtures of biogenic and technogenic originстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 5 мая 2015 г.
Аннотация:The development of energy effective processes, intensification of chemical and petroleum
refining industries, solution of environmental tasks are related with hydrogen. Introductory
parts of review are focused on particularity of H2 generation from biomass (microbiological
routes and pyrolysis) and introducing with main industrial hydrogen-containing
gaseous mixtures as technogenic sources. Membrane gas separation processes as lower
energy consuming ones for H2 recovery from gaseous sources which are as rule multicomponent
gas mixtures are considered in this paper including: (1) estimation of unknown
gas permeance of commercial and lab-scale polymeric membranes for such components as
CO2, CO, N2, CH4, H2S and calculation of standard membrane processes for H2 recovery
from multicomponent mixtures; (2) modeling of hydrogen recovery from H2/CO2 mixtures
by gaseliquid membrane contactors with non-porous polymeric membranes; (3) theoretical
and experimental results of hydrogen recovery from gaseous mixtures of technogenic
and biogenic origin by combined membrane/PSA systems. It is shown that H2 recovery can
be successfully realized as combination of standard membrane method (H2 preconcentrating)
and PSA (H2 conditioning). Improving of whole process requires the development of
highly selective membranes.