Removal of trace amount of benzene from CO2 by adsorption with modified activated carbon
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Removal of trace amount of benzene from CO2 by adsorption with modified activated carbon
CIESC JournalIssue 6, Pages: 1494-1499(2009)
作者机构:
大连理工大学精细化工国家重点实验室
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Online First:05 June 2009,
Published:05 June 2009
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LI Yuxue, ZHANG Yongchun. Removal of trace amount of benzene from CO2 by adsorption with modified activated carbon[J]. CIESC Journal, 2009, (6): 1494-1499.
DOI:
LI Yuxue, ZHANG Yongchun. Removal of trace amount of benzene from CO2 by adsorption with modified activated carbon[J]. CIESC Journal, 2009, (6): 1494-1499.DOI:
Removal of trace amount of benzene from CO2 by adsorption with modified activated carbon
It is significant to recover CO2 from industrial tail gases.Adsorption of low concentration benzene on activated carbon was studied.Activated carbon was treated with wet oxidized reagent and N2 reduction.Pore structure of modified activated carbon was characterized by N2 (77 K) adsorption isotherm.Boehm titration
Fourier transform infrared spectroscopy (FTIR) were used to characterize the surface properties.N2 reduction increased the surface area of AC and total pore volume
reduced the amount of surface groups and improved benzene adsorption.With CO2 regeneration at 150℃
the capability of activated carbon adsorbents had a little decrease at the beginning but remained unchanged with recycling.