Catalytic supercritical gasification of biocrude from hydrothermal liquefaction of cattle manure

Mohammad S.H.K. Tushar; Animesh Dutta; Chunbao Charles Xu

doi:10.1016/j.apcatb.2016.02.032

Catalytic supercritical gasification of biocrude from hydrothermal liquefaction of cattle manure

Mohammad S.H.K. Tushar, Animesh Dutta^*, Chunbao Charles Xu

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

33 Citations (Scopus)

Abstract

In this article, we performed catalytic supercritical water gasification (SCWG) of biomass to enhance hydrogen production. First we used glucose as a model compound to screen the best catalyst and then we used this catalyst to gasify biocrude from hydrothermal liquefaction of cattle manure. We introduced a novel dual metal (Ni, Ru)-dual support (Al₂O₃, ZrO₂) catalyst for the first time in SCWG in order to improve the H₂ yield. A continuous flow tubular reactor was employed to perform the experiments. Novel 10%Ni-0.08%Ru/Al₂O₃-ZrO₂ catalyst showed the highest H₂ yield (1.34 mol/mol of C for glucose and 1.01 mol/mol of C for biocrude) and highest carbon gasiifcation efficiency (88% for glucose and 92% for biocrude). It was found that Ru promoted Ni and ZrO₂ showed some catalytic activities towards hydrogen production. The pressure was 25 MPa for all experiments. Stability test showed that 10%Ni-0.08%Ru/Al₂O₃-ZrO₂ was highly stable for a 20 h run. Among the parameters studied, higher temperature favored H₂ yield, whereas higher concentration led to lower H₂ yield. We found that carbon gasification efficiency of cattle manure biocrude was independent of variation in temperature and concentration. Also the equilibrium condition was attained at lower temperature and concentration in terms of carbon conversion of the feed. An Eley-Rideal (ER) based mechanistic model was devised and tested against the obtained data. It was found the dissociation of adsorbed oxygenated hydrocarbon is the rate determining step with an average absolute deviation 6.65%. © 2016 Elsevier B.V.

Original language	English
Pages (from-to)	119-132
Journal	Applied Catalysis B: Environmental
Volume	189
DOIs	https://doi.org/10.1016/j.apcatb.2016.02.032
Publication status	Published - 15 Jul 2016
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Biocrude
Catalyst
Cattle manure
Eley-Rideal (ER)
Hydrothermal liquefaction
Kinetic modelling
Rate determining step (RDS)
Supercritical water gasification

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Catalytic supercritical gasification of biocrude from hydrothermal liquefaction of cattle manure",

abstract = "In this article, we performed catalytic supercritical water gasification (SCWG) of biomass to enhance hydrogen production. First we used glucose as a model compound to screen the best catalyst and then we used this catalyst to gasify biocrude from hydrothermal liquefaction of cattle manure. We introduced a novel dual metal (Ni, Ru)-dual support (Al2O3, ZrO2) catalyst for the first time in SCWG in order to improve the H2 yield. A continuous flow tubular reactor was employed to perform the experiments. Novel 10%Ni-0.08%Ru/Al2O3-ZrO2 catalyst showed the highest H2 yield (1.34 mol/mol of C for glucose and 1.01 mol/mol of C for biocrude) and highest carbon gasiifcation efficiency (88% for glucose and 92% for biocrude). It was found that Ru promoted Ni and ZrO2 showed some catalytic activities towards hydrogen production. The pressure was 25 MPa for all experiments. Stability test showed that 10%Ni-0.08%Ru/Al2O3-ZrO2 was highly stable for a 20 h run. Among the parameters studied, higher temperature favored H2 yield, whereas higher concentration led to lower H2 yield. We found that carbon gasification efficiency of cattle manure biocrude was independent of variation in temperature and concentration. Also the equilibrium condition was attained at lower temperature and concentration in terms of carbon conversion of the feed. An Eley-Rideal (ER) based mechanistic model was devised and tested against the obtained data. It was found the dissociation of adsorbed oxygenated hydrocarbon is the rate determining step with an average absolute deviation 6.65%. {\textcopyright} 2016 Elsevier B.V.",

keywords = "Biocrude, Catalyst, Cattle manure, Eley-Rideal (ER), Hydrothermal liquefaction, Kinetic modelling, Rate determining step (RDS), Supercritical water gasification",

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AU - Tushar, Mohammad S.H.K.

AU - Dutta, Animesh

AU - Xu, Chunbao Charles

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2016/7/15

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N2 - In this article, we performed catalytic supercritical water gasification (SCWG) of biomass to enhance hydrogen production. First we used glucose as a model compound to screen the best catalyst and then we used this catalyst to gasify biocrude from hydrothermal liquefaction of cattle manure. We introduced a novel dual metal (Ni, Ru)-dual support (Al2O3, ZrO2) catalyst for the first time in SCWG in order to improve the H2 yield. A continuous flow tubular reactor was employed to perform the experiments. Novel 10%Ni-0.08%Ru/Al2O3-ZrO2 catalyst showed the highest H2 yield (1.34 mol/mol of C for glucose and 1.01 mol/mol of C for biocrude) and highest carbon gasiifcation efficiency (88% for glucose and 92% for biocrude). It was found that Ru promoted Ni and ZrO2 showed some catalytic activities towards hydrogen production. The pressure was 25 MPa for all experiments. Stability test showed that 10%Ni-0.08%Ru/Al2O3-ZrO2 was highly stable for a 20 h run. Among the parameters studied, higher temperature favored H2 yield, whereas higher concentration led to lower H2 yield. We found that carbon gasification efficiency of cattle manure biocrude was independent of variation in temperature and concentration. Also the equilibrium condition was attained at lower temperature and concentration in terms of carbon conversion of the feed. An Eley-Rideal (ER) based mechanistic model was devised and tested against the obtained data. It was found the dissociation of adsorbed oxygenated hydrocarbon is the rate determining step with an average absolute deviation 6.65%. © 2016 Elsevier B.V.

AB - In this article, we performed catalytic supercritical water gasification (SCWG) of biomass to enhance hydrogen production. First we used glucose as a model compound to screen the best catalyst and then we used this catalyst to gasify biocrude from hydrothermal liquefaction of cattle manure. We introduced a novel dual metal (Ni, Ru)-dual support (Al2O3, ZrO2) catalyst for the first time in SCWG in order to improve the H2 yield. A continuous flow tubular reactor was employed to perform the experiments. Novel 10%Ni-0.08%Ru/Al2O3-ZrO2 catalyst showed the highest H2 yield (1.34 mol/mol of C for glucose and 1.01 mol/mol of C for biocrude) and highest carbon gasiifcation efficiency (88% for glucose and 92% for biocrude). It was found that Ru promoted Ni and ZrO2 showed some catalytic activities towards hydrogen production. The pressure was 25 MPa for all experiments. Stability test showed that 10%Ni-0.08%Ru/Al2O3-ZrO2 was highly stable for a 20 h run. Among the parameters studied, higher temperature favored H2 yield, whereas higher concentration led to lower H2 yield. We found that carbon gasification efficiency of cattle manure biocrude was independent of variation in temperature and concentration. Also the equilibrium condition was attained at lower temperature and concentration in terms of carbon conversion of the feed. An Eley-Rideal (ER) based mechanistic model was devised and tested against the obtained data. It was found the dissociation of adsorbed oxygenated hydrocarbon is the rate determining step with an average absolute deviation 6.65%. © 2016 Elsevier B.V.

KW - Biocrude

KW - Catalyst

KW - Cattle manure

KW - Eley-Rideal (ER)

KW - Hydrothermal liquefaction

KW - Kinetic modelling

KW - Rate determining step (RDS)

KW - Supercritical water gasification

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U2 - 10.1016/j.apcatb.2016.02.032

DO - 10.1016/j.apcatb.2016.02.032

M3 - RGC 21 - Publication in refereed journal

SN - 0926-3373

VL - 189

SP - 119

EP - 132

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

ER -

Catalytic supercritical gasification of biocrude from hydrothermal liquefaction of cattle manure

Abstract

Bibliographical note

Research Keywords

UN SDGs

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