Conversion of ethanol fermentation stillage into aliphatic ketones by two-step process of hydrothermal treatment and catalytic reaction

Mansur, Dieni; Shimokawa, Mana; Oba, Kiyoshi; Nakasaka, Yuta; Tago, Teruoki; Masuda, Toshio

doi:10.1016/j.fuproc.2012.05.026

Cited by 13 publications

(12 citation statements)

References 17 publications

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“…Moreover, metal oxides have been utilized in the decomposition of glycerol [20,21], cacao pod husks [22], 10 lignin [23], pyroligneous acid [24], and ethanol fermentation stillage [25] to give useful materials. Compared with AR, the concentration of heavy components such as VR (vacuum residue) and asphaltenes is much higher in bitumen, which means that carbonaceous residues and coke are easily formed during its decomposition.…”

Section: Introductionmentioning

confidence: 99%

Upgrading of oil sand bitumen over an iron oxide catalyst using sub- and super-critical water

Kondoh

Nakasaka

Kitaguchi

et al. 2016

Fuel Processing Technology

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Upgrading of oil sand bitumen was examined using a catalyst consisting of CeO 2 -ZrO 2 -Al 2 O 3 -FeO X and sub-and super-critical water in two reactor types: batch-type and fixed-bed flow-type. Bitumen diluted with benzene was used as a feedstock, and the effects of reaction pressure and temperature on product yield were 5 investigated. Under conditions of high pressure (approximately 19 MPa), catalytic decomposition of bitumen proceeded effectively over the FeO X -based catalyst, with the yield of lighter components such as gas oil and vacuum gas oil (VGO) reaching 70 mol%-C at a reaction temperature of 693 K. Moreover, because coke formation on the catalyst was suppressed (less than 10 mol%-C under optimized reaction pressure and 10 temperature), the FeO X -based catalyst showed excellent durability and reusability for catalytic decomposition of bitumen.

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Section: Introductionmentioning

confidence: 99%

Upgrading of oil sand bitumen over an iron oxide catalyst using sub- and super-critical water

Kondoh

Nakasaka

Kitaguchi

et al. 2016

Fuel Processing Technology

Self Cite

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“…Mansur et al [38] noted that amount of tars present in the effluent gas (by mass) started to decrease above 200 °C and dramatically decreased above 250 °C during a study on the effects of hydrothermal temperature on DDGS product yield. Meng et al [16] observed that during the pyrolysis of DDGS, olive residue, and other forms of biomass it was necessary to heat the gas temperature to 150°C to avoid the condensation of gas in the line when attempting to sample the products in a spectrometer.…”

Section: Elimination Of Tars and Waxes From The Effluent Gasmentioning

confidence: 99%

Pyrolytic Conversion of Biomass Residues to Gaseous Fuels for Electricity Generation

Davies

Soheilian

Zhuo

et al. 2013

Journal of Energy Resources Technology

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As petroleum resources are finite, it is imperative to use them wisely in energy conversion applications and, at the same time, develop alternative energy sources. Biomass is one of the renewable energy sources that can he used to partially replace fossil fuels. Biomasshased fuels can be produced domestically and can reduce dependency on fuel imports. Due to their abundant supply, and given that to an appreciable extent they can be considered carbon-neutral, their use for power generation is of technological interest. However, whereas biomasses can be directly burned in furnaces, such a conventional direct combustion technique is ill-controlled and typically produces considerable amounts of health-hazardous airborne compounds. Thus, an alternative technology for biomass utilization is described herein to address increasing energy needs in an environmentallybenign manner. More specifically, a multistep process/device is presented to accept granulated or pelietized biomass, and generate an easily-identifiable form of energy as a final product. To achieve low emissions of products of incomplete combustion, the biomass is gasified pyrolytically, mixed with air, ignited and, finally, burned in nominally premixed low-emission fiâmes. Combustion is thus indirect, since the biomass is not directly burned, instead its gaseous pyrolyzates are burned upon mixing with air. Thereby, combustion is well-controlled and can be complete. A demonstration device has been constructed to convert the internal energy of biomass into "clean" thermal energy and, eventually to electricity.

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“…The initial To alleviate this problem, a literature search was performed to identify the temperature at which tars and waxes condense out of the biomass pyrolyzates. Mansur et al [29] noted that amount of tars present in the effluent gas (by mass) started to decrease above 200 °C and dramatically decreased above 250 °C during a study on the effects of hydrothermal temperature DDGS product yield. Meng et al [30] observed that during the pyrolysis of DDGS, olive residue, and other forms of biomass it was necessary to heat the gas temperature to 150 °C to avoid the condensation of gas in the line when attempting to sample the products in a spectrometer.…”

Section: Elimination Of Tars and Waxes From The Effluent Gasmentioning

confidence: 99%

Environmentally-Benign Conversion of Biomass Residues to Electricity

Davies

2013

Volume 1: Fuels and Combustion, Material Handling, Emissions; Steam Generators; Heat Exchangers and Cooling Systems; Turbines,

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As petroleum resources are finite, it is imperative to use them wisely in energy conversion applications and, at the same time, develop alternative energy sources. Biomass is one of the renewable energy sources that can be used to partially replace fossil fuels. Biomass-based fuels can be produced domestically and can reduce dependency on fuel imports. Due to their abundant supply, and given that to an appreciable extent they can be considered carbon-neutral, their use for power generation is of technological interest. However, whereas biomasses can be directly burned in furnaces, such a conventional direct combustion technique is ill-controlled and typically produces considerable amounts of health-hazardous airborne compounds [1, 2]. Thus, an alternative technology for biomass utilization is described herein to address increasing energy needs in an environmentally-benign manner. More specifically, a multi-step process/device is presented to accept granulated or pelletized biomass, and generate an easily-identifiable form of energy as a final product. To achieve low emissions of products of incomplete combustion, the biomass is gasified pyrolyticaly, mixed with air, ignited and, finally, burned in nominally premixed low-emission flames. Combustion is thus indirect, since the biomass is not directly burned, instead its gaseous pyrolyzates are burned upon mixing with air. Thereby, combustion is well-controlled and can be complete. A demonstration device has been constructed to convert the internal energy of plastics into "clean" thermal energy and, eventually to electricity.

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Conversion of ethanol fermentation stillage into aliphatic ketones by two-step process of hydrothermal treatment and catalytic reaction

Cited by 13 publications

References 17 publications

Upgrading of oil sand bitumen over an iron oxide catalyst using sub- and super-critical water

Upgrading of oil sand bitumen over an iron oxide catalyst using sub- and super-critical water

Pyrolytic Conversion of Biomass Residues to Gaseous Fuels for Electricity Generation

Environmentally-Benign Conversion of Biomass Residues to Electricity

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