Research of the combined reforming of bio‐oil model compound for hydrogen production

Abstract

The combination of steam and CO2 reforming of bio‐oil is proposed in this article. The combined reforming can make good use of the advantages of steam reforming and CO2 reforming. The results indicate that H2 yield, potential H2 yield, and H2/CO were 60.23, 81.97, and 2.77%, respectively, at the condition of 700°C and bio‐oil:CO2:H2O = 1:0.5:1.5. Bio‐oil:CO2:H2O has a significant effect on the H2 yield, potential H2 yield, and H2/CO in the process of combined reforming. A different ratio of H2/CO can be obtained by adjusting the proportion of bio‐oil:CO2:H2O, which can meet different industry requirements. The results of X‐ray diffraction and scanning electron microscope analyses indicate that the catalyst deactivation was the result of a combination of carbon deposition and Ni grain sintering, and the carbon deposition was a main reason for the catalyst deactivation.

Assessment of biogas and syngas production from sugarcane vinasse: A sustainable alternative for the production of renewable fuels

“…Hydrogen is a clean and versatile fuel that is an indispensable resource in refinery operations and finds wide application in fuel cells, chemical synthesis, energy storage, and other sectors. 40,42,55,58,59 Dimethyl ether production…”

“…Combining this stream with steam achieved bi-reforming using the same kinetics and reactions as steam reforming (Table 9). 43,58,63,84 This reforming process reduced the H 2 /CO ratio from 3 to 2, an ideal value for effective application in Fischer-Tropsch synthesis. 37,42,56,67,68 The reactions corresponding to the kinetics contained in Table 9 are shown below:…”

“…The second configuration of the simulation involves bi-reforming, which incorporates the addition of a CO 2 stream derived from the fermentation of sugarcane juice. 43,58,63,84 The outcome of this bireforming process is the production of a synthesis gas with an H 2 /CO molar ratio of 2. This molar ratio is highly favorable for Fischer-Tropsch synthesis, widely employed in producing liquid fuels.…”

Unveiling the Deactivation by Coke of Nial2o4 Spinel Derived Catalysts in the Bio-Oil Steam Reforming: Role of Individual Oxygenates

“…The SR of bio-oil, obtained by fast pyrolysis of lignocellulosic biomass, has gained increased attention [5], due to the good prospects of a strategy to combine the delocalized bio-oil production (with well-developed technologies and with low infrastructure costs) [6], with centralized bio-oil SR in a bio-refinery with units designed ad hoc for selective H 2 production. The liquid state and higher volumetric energy density of bio-oil facilitates its transportation, storage and treatment compared to biomass [7]. In addition, the SR of bio-oil avoids the costly dehydration steps required for the use of bio-oil as fuel or for its valorization in other catalytic processes [8].…”

“…C n H m O k → C x H y O z (7) Moreover, the reactions for coke formation from gaseous products (Eqs. ( 8) and ( 9)) and its gasification reaction (Eq.…”