Effect of operating conditions for higher alcohols synthesis from synthesis gas over alkali-modified Co-Rh-Mo trimetallic catalyst supported on multi-walled carbon nanotubes
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CONTRIBUTORS:
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JOURNAL:
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International Journal of Chemical Reactor Engineering,
9(??),
A50 -
A50.
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YEAR:
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2011
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PUB TYPE:
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Journal Article
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SUBJECT(S):
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alkali-promoted MoS2 catalyst; Co promoted; fixed bed reactor; higher alcohols; multi-walled carbon nanotubes; Rh promoter; trimetallic catalyst
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DISCIPLINE:
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Chemistry
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HTTP:
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LANGUAGE:
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English
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PUB ID:
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103-501-550
(Last edited on
2012/04/04 00:42:04 GMT-6)
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SPONSOR(S):
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ABSTRACT:
The effects of operating conditions on the higher alcohols synthesis reaction from synthesis gas were studied in a single-pass tubular downflow fixed-bed reactor, using sulfided K-promoted trimetallic Co-Rh-Mo catalyst supported on multi-walled carbon nanotubes (MWCNTs). The p CO conversion increased monotonically with increasing reaction temperature (from 275 to 350°C) and pressure (from 800 to 1400 psi), while decreasing monotonically with increasing GHSV (from 2.4 to 4.2 m3 (STP)/(kg of cat./h)). To maximize the ethanol STY and selectivity, the optimum operating conditions were determined as 330°C, 1320 psi, and 3.8 m3 (STP)/kg of cat./h). Maximum ethanol STY and selectivity were obtained using gas with H2 to CO molar ratio around 1.25.
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STATISTICS
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