Predicting thermal excursions during in-situ oxidative regeneration of packed bed catalytic fast pyrolysis catalyst

2021 ◽  
Author(s):  
Bruce Adkins ◽  
Zachary Mills ◽  
James Parks ◽  
Michael Brennan Pecha ◽  
Peter N. Ciesielski ◽  
...  
Keyword(s):  
Oxygen Content ◽  
Fast Pyrolysis ◽  
Packed Bed ◽  
Ex Situ ◽  
Biomass Pyrolysis ◽  
Catalytic Fast Pyrolysis ◽  
Oxidative Regeneration ◽  
Pyrolysis Catalyst

Ex-situ Catalytic Fast Pyrolysis (CFP) uses a secondary reactor to upgrade biomass pyrolysis vapors to stabilized CFP oils with reduced oxygen content. In one configuration, the secondary reactor is operated...

scholarly journals Biomass Fast Pyrolysis Vapor Upgrading over γ-Alumina, Hydrotalcite, Dolomite and Effect of Na2CO3 Loading: A Pyro Probe GCMS Study

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5397
Author(s):  
Harsha Mysore Prabhakara ◽  
Eddy Bramer ◽  
Gerrit Brem
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Oxygen Content ◽  
Fast Pyrolysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Biomass Pyrolysis ◽  
Noticeable Effect ◽  
Lower Oxygen ◽  
Tga Analysis

The influence of γ-alumina, hydrotalcite, dolomite and Na2CO3 loaded γ-alumina, hydrotalcite, dolomite on fast pyrolysis vapor upgrading of beechwood was investigated using an analytical pyro probe-gas chromatography/mass spectrometry instrument (Py-GC/MS) at a temperature of 500 °C. Overall, this research showcased that these catalysts can deoxygenate biomass pyrolysis vapors into a mixture of intermediate compounds which have substantially lower oxygen content. The intermediate compounds are deemed to be suitable for downstream hydrodeoxygenation processes and it also means that hydrogen consumption will be reduced as a result of moderate in-situ deoxygenation. Among the support catalysts, the application of hydrotalcite yielded the best results with the formation of moderately deoxygenated compounds such as light phenols, mono-oxy ketones, light furans and hydrocarbons with a TIC area % of 7.5, 44.8, 9.8 and 9.8, respectively. In addition, acids were considerably reduced. Dolomite was the next most effective catalyst as γ-alumina retained most of the acids and other oxygenates. Na2CO3 loading on γ-alumina had a noticeable effect on eliminating more or less all the acids, enhancing the mono-oxy-ketones and producing lighter furans. In contrast, Na2CO3 loading on dolomite and hydrotalcite did not show a major impact on the composition except for further enhancing the mono-oxy-ketones (e.g., acetone and cyclopentenones). Additionally, in the case of hydrotalcite and γ-alumina, Na2CO3 loading suppressed the formation of hydrocarbons. In this research, the composition of pyrolytic vapors as a result of catalysis is elaborated further under the specific oxygenate groups such as acids, phenolics, furanics, ketones and acids. Further the catalysts were also characterized by BET, XRD and TGA analysis.

Ex-situ catalytic fast pyrolysis of Beetle-killed lodgepole pine in a novel ablative reactor

Fuel ◽  
2019 ◽  
Vol 241 ◽  
pp. 933-940 ◽  
Author(s):  
Heather G. Wise ◽  
Anthony B. Dichiara ◽  
Fernando L.P. Resende
Keyword(s):  
Lodgepole Pine ◽  
Fast Pyrolysis ◽  
Ex Situ ◽  
Catalytic Fast Pyrolysis

Comparison of Bio-Oil Properties from Non-Catalytic and In-Situ Catalytic Fast Pyrolysis of Palm Empty Fruit Bunch

2018 ◽  
Vol 5 (11) ◽  
pp. 23456-23465
Author(s):  
Suchithra Thangalazhy-Gopakumar ◽  
Chi Wei Lee ◽  
Suyin Gan ◽  
Hoon Kiat Ng ◽  
Lai Yee Lee
Keyword(s):  
Fast Pyrolysis ◽  
Empty Fruit Bunch ◽  
Catalytic Fast Pyrolysis ◽  
Bio Oil

scholarly journals Ex Situ Catalytic Fast Pyrolysis of Lignocellulosic Biomass to Hydrocarbon Fuels: 2020 State of Technology

2021 ◽  
Author(s):  
Abhijit Dutta ◽  
Calvin Mukarakate ◽  
Kristiina Iisa ◽  
Huamin Wang ◽  
Michael Talmadge ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Fast Pyrolysis ◽  
Hydrocarbon Fuels ◽  
Ex Situ ◽  
Catalytic Fast Pyrolysis

scholarly journals Ex situ catalytic fast pyrolysis of soy sauce residue with HZSM-5 for co-production of aromatic hydrocarbons and supercapacitor materials

RSC Advances ◽  
2020 ◽  
Vol 10 (39) ◽  
pp. 23331-23340
Author(s):  
Kai Li ◽  
Dana Bolatibieke ◽  
Shi-guan Yang ◽  
Bo Wang ◽  
Dong-hong Nan ◽  
...  
Keyword(s):  
Aromatic Hydrocarbons ◽  
Fast Pyrolysis ◽  
Soy Sauce ◽  
New Method ◽  
Ex Situ ◽  
Catalytic Fast Pyrolysis

A new method to co-produce aromatic hydrocarbons and a supercapacitor material from the catalytic fast pyrolysis of soy sauce residue has been developed.

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