Upgrading of syngas hydrotreated fractionated oxidized bio-oil to transportation grade hydrocarbons

Luo, Yan; Hassan, El Barbary; Guda, Vamshi Krishna; Wijayapala, Rangana; Steele, Philip H.

doi:10.1016/j.enconman.2016.02.051

Cited by 39 publications

(22 citation statements)

References 26 publications

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“…Hence, utilizing synthesis gas (i.e., syngas) in the HDO process could significantly decrease the expense of process. In fact, the utilization of syngas might eliminate or at least reduce the cost of hydrogen separation step and also reduce further consumption of hydrogen . Furthermore, syngas could be produced via the gasification of lignin .…”

Section: Introductionmentioning

confidence: 99%

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The utilization of synthesis gas for the deoxygenation of cyclohexanone over alumina‐supported catalysts: Screening catalysts

Bakhtyari

Sakhayi

Rahimpour

et al. 2020

Asia-Pacific J Chem Eng

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Environmental regulations motivate the industries to replace conventional fuels and chemicals by those produced from biomass. In this regard, hydrodeoxygenation of lignin compounds is of a great deal of attention. Synthesis gas could be utilized instead of pure hydrogen for the cleavage of oxygen‐containing chemical bonds through hydrodeoxygenation. Following this, the utilization of synthesis gas is investigated in the present contribution. A wide range of commercial alumina‐supported catalysts is investigated. The experimental results of cyclohexanone hydrodeoxygenation in the presence of pure hydrogen and synthesis gas at 573 K and 20 bar of total pressure are presented and discussed. The whole investigated catalysts show good activity toward the hydrodeoxygenation of cyclohexanone. Methylatedbenzene derivatives are produced from cyclohexanone hydrodeoxygenation for the first time. The catalysts composed of platinum showed the best performance. By utilizing a chlorinated platinum catalyst, 89.6% cyclohexanone conversion, 100% total hydrocarbon selectivity, and 44.6% total hydrocarbon yield are obtained. In the case of syngas‐assisted hydrodeoxygenation, 80.1% cyclohexanone conversion, 100% total hydrocarbon selectivity, and 29.6% total hydrocarbon yield are obtained by utilizing the same catalyst. The presence of methylated aromatics proves the accomplishment of methanation or direct aromatization reactions in the presence of carbon oxides and hydrogen.

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Section: Introductionmentioning

confidence: 99%

“…To clarify what lies behind the idea, the investigation of the role of syngas in the upgrading through HDO process is necessary. In this regard, the upgrading of some bio‐oil mixtures with syngas has been investigated in a limited number of studies …”

Section: Introductionmentioning

confidence: 99%

The utilization of synthesis gas for the deoxygenation of cyclohexanone over alumina‐supported catalysts: Screening catalysts

Bakhtyari

Sakhayi

Rahimpour

et al. 2020

Asia-Pacific J Chem Eng

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“…The FTIR spectra, shown in Fig. 5a, present three distinct absorption bands at 3000 to 2800 cm -1 , 1450 to 1350 cm -1 , and 810 to 730 cm -1 characteristic of C-H stretching (alkanes, aromatics), C-H bending (alkanes), and C-H bending (aromatic), respectively (Luo et al 2016b). FTIR analysis shows that the OLPs obtained from all the reactions contained deoxygenated hydrocarbons, both aromatic and aliphatic.…”

Section: Ftir Sulfur and Gc/ms Analysis Of Four Reactions Olpsmentioning

confidence: 99%

“…Figure 3 shows FTIR spectra of RBO, OBO-A, OBO-B, and HB. Four major absorption bands, characteristic of O-H stretching, C-H stretching, C=O stretching, and C-O stretching can be seen clearly in the FTIR spectra (Luo et al 2016b). The respective bands at 3600 to 3200 cm -1 and 1800 to 1600 cm -1 , which are characteristic of hydrogen bonded O-H stretching and C=O stretching, are broad and intense in every bio-oil type except HB, indicating that the majority of the acids and carbonyls were converted to alkyl groups.…”

Section: Gc/ms and Ftir Analysis Of Rbo Obo-a Obo-b And Hbmentioning

confidence: 99%

Hydrodeoxygenation of Oxidized and Hydrotreated Bio-oils to Hydrocarbons in Fixed-bed Continuous Reactor

Luo¹,

Guda²,

Steele³

et al. 2016

BioResources

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The physical and chemical properties of raw bio-oil, two oxidized bio-oils, and hydrotreated bio-oil were compared before and after catalytic hydrodeoxygenation using sulfided CoMo/γ-Al2O3 catalyst. Following continuous hydrodeoxygenation, the organic liquid products from treated bio-oils and raw bio-oil were compared for higher heating value, oxygen content, water content, and viscosity. In addition, Fourier transform infrared spectroscopy and gas chromatography/mass spectrometry were employed to identify functional groups and chemical species, respectively. Fresh and spent catalysts were characterized by nitrogen adsorptiondesorption for surface area and pore properties. The degree of coking of the spent catalysts was analyzed by thermogravimetric analysis. Hydrodeoxygenation of hydrotreated bio-oil (HB) gave the longest reaction time on stream of 780 min, the least coking amount of 20 wt%, and the highest hydrocarbon selectivity of 70% up to 720 min of reaction time on stream. Moreover, organic liquid products from HB showed relatively stable properties such as low oxygen content, water content, and viscosity over a longer period of reaction time on stream.

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“…For biofuel production hydrodeoxygenation can efficiently convert biomass to bio-oil [12]. In this regard, the application of syngas under optimum temperature is recently proposed to further enhance the conversion process [13,14]. Despite recent advance in production of biofuel from microalgae, the cost of production need to be further reduced in order to compete with fossil fuel.…”

Section: Introductionmentioning

confidence: 99%

Waste to Energy from Flue Gas of Industrial Plants to Biodiesel: Effect of CO2 on Microalgae Growth

Hanifzade¹,

Nabati²,

Tavakoli³

et al. 2017

Int J Waste Resour

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Upgrading of syngas hydrotreated fractionated oxidized bio-oil to transportation grade hydrocarbons

Cited by 39 publications

References 26 publications

The utilization of synthesis gas for the deoxygenation of cyclohexanone over alumina‐supported catalysts: Screening catalysts

The utilization of synthesis gas for the deoxygenation of cyclohexanone over alumina‐supported catalysts: Screening catalysts

Hydrodeoxygenation of Oxidized and Hydrotreated Bio-oils to Hydrocarbons in Fixed-bed Continuous Reactor

Waste to Energy from Flue Gas of Industrial Plants to Biodiesel: Effect of CO2 on Microalgae Growth

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