Kinetic study of the catalytic cracking of waste motor oil using biomass-derived heterogeneous catalysts

Rodriguez, Yuliana; Guerra, R.G.; Vizuete, Karla; Debut, Alexis; Streitwieser, Daniela Almeida; Mora, José R.; Ponce, Sebastian

doi:10.1016/j.wasman.2023.05.027

Cited by 9 publications

(10 citation statements)

References 49 publications

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“…Figure 1b shows an example of the linearized form of the potential law model, which is modeled by a linear equation. The thermal and cracking catalytic reactions have a pseudo-first-order mechanism, which was expected from previous contributions [15,16]. The differential method obtained the kinetic constant in all cracking catalytic reactions.…”

Section: Catalytic Cracking Of Wmo and Kinetic Studymentioning

confidence: 66%

“…Rice husk was chosen as a raw material for hydrochar production and used for the catalytic cracking of WMO. In a previous contribution, biochar alkali treatment remarkably influenced the kinetic constant for WMO cracking [16]. Thus, in this study, hydrochars were alkali-treated with KOH to test the activation influence on the material's morphology and performance.…”

Section: Catalytic Cracking Of Wmo and Kinetic Studymentioning

confidence: 91%

“…Among them, Ni-doped basic Al/Si exhibited three times higher conversions and yields than metal-free counterparts [14,15]. Recently, chemically activated rice husk biochar (RH-KOH) was applied to replace synthetic materials with biomass-based catalysts, outperforming previous synthetic materials and implying lower activation energy [16]. Hence, following the trend in thermochemical conversion processes, hydrochar is a suitable alternative for larger-scale applications.…”

Section: Introductionmentioning

confidence: 99%

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Rapid Waste Motor Oil Conversion into Diesel-Range Hydrocarbons Using Hydrochar as Catalyst: Kinetic Study and Product Characterization

Murillo,

Juiña,

Vizuete

et al. 2024

Recycling

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Herein, raw and alkali-treated hydrochars from biomass waste are prepared as a highly active catalyst for the conversion of waste motor oil into diesel-like fuels. Among all materials, hydrochar obtained at 250 °C and subsequent alkali activation with KOH showed a 600% improvement of the kinetic constant from 0.0088 to 0.0614 m−1. Conversion values at the same conditions were also improved from 66 to 80% regarding thermal and catalytic cracking, respectively. Moreover, the activation energy was also reduced from 293 to 246 kJ mol−1 for thermal and catalytic cracking, respectively. After characterization, the enhanced catalytic activity was correlated to an increased surface area and functionalization due to the alkali activation. Finally, the liquid product characterization demonstrated that catalytic cracking is more effective than thermal cracking for producing hydrocarbons in the diesel range. In particular, hydrochar-based catalysts are suggested to promote the formation of specific hydrocarbons so that the carbon distribution can be tailored by modifying the hydrothermal treatment temperature.

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Section: Catalytic Cracking Of Wmo and Kinetic Studymentioning

confidence: 66%

Section: Catalytic Cracking Of Wmo and Kinetic Studymentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Rapid Waste Motor Oil Conversion into Diesel-Range Hydrocarbons Using Hydrochar as Catalyst: Kinetic Study and Product Characterization

Murillo,

Juiña,

Vizuete

et al. 2024

Recycling

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“…The CHNS contents were determined based on the BS EN ISO 16948 standard [20] using a Perkin Elmer 2400 elemental analyzer, while the ash content was measured following the UNE-EN ISO 18122 method [21] in a Hysc MF-05 muffle furnace. Proximal analysis of biomass is also shown in Table 1, which was reported from our previous study using the same biomass type [22].…”

Section: Hydrochar Preparationmentioning

confidence: 91%

“…Hydrochar was alkali-treated following the method of Rodriguez et al [22]. Hydrochar and a 3M KOH solution (100 mL per 1 g hydrochar) were stirred at 400 rpm and 70 • C for 2 h. The alkali-treated hydrochar was then filtered and dried for 20 h in an oven at 105 • C.…”

Section: Activation and Characterization Of Optimal Hydrocharsmentioning

confidence: 99%

Preparation of Adsorbent Materials from Rice Husk via Hydrothermal Carbonization: Optimization of Operating Conditions and Alkali Activation

Naranjo,

Juiña,

Loyo

et al. 2023

Resources

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Hydrothermal carbonization (HTC) of rice husk was optimized in terms of the adsorption capacity at equilibrium (qe) and hydrochar mass yield (MY). The studied variables were reaction temperature, residence time, and biomass-to-water ratio by means of response surface methodology. In both cases, reaction temperature resulted the most significant parameter promoting high qe values at higher temperatures when treating methylene blue (MB) as the target pollutant. Nevertheless, MY was low (~40%) when focusing on a possible industrial application. Hence, maximizing qe and MY simultaneously by optimization of multiple responses emerges as a promising solution to improve MY values (>60%) with no significant differences regarding the qe response. Furthermore, additional activation was conducted on optimal hydrochars to further investigate the enhancement of qe. As a result, no statistical differences between non-modified and activated hydrochars were observed for qe; however, the pseudo-second-order constant (k2) seemed to be increased after alkali activation, mainly due to a larger surface area. Non-modified and activated hydrochars were characterized via SEM, FTIR, XRD, and BET, resulting in two significant effects contributing to MB adsorption: increased surface area and functionalized hydrochar surface. Consequently, this work provides valuable insights on subsequent application of this HTC optimization scheme at an industrial scale.

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Application of waste biomass for the production of biofuels and catalysts: a review

Quevedo-Amador,

Escalera-Velasco,

Arias

et al. 2024

Clean Techn Environ Policy

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Sustainable development is imperative, and the worldwide energy production must focus on the transition from petroleum derivatives to biomass-based biofuels and bioproducts to achieve a bio-based economy. The global interest in the processing of waste biomass to obtain bio-based products is continuously increasing. However, biorefineries have not yet been consolidated. The effective conversion of biomass components for the generation of value-added biochemicals and biofuels is a determining factor for the economic success of biorefineries. Therefore, exhaustive research has been performed to consolidate the biorefinery industry. This review summarizes the current advances in liquid biofuel production and solid catalysts prepared from waste biomass, as well as their advantages, drawbacks, and statistical data. It offers an extensive perspective, covering conventional methods and cutting-edge techniques such as biochemical and thermochemical biomass conversion technologies (e.g., hydrolysis, fermentation, pyrolysis, and gasification) to produce bioalcohols, biodiesel, renewable diesel, bio-jet, and bio-oil. In addition, the preparation of heterogeneous catalysts using residual biomass and different synthesis routes and their role in biofuel production were analyzed. This review contributes to the analysis of the importance of identifying and valorizing a wide spectrum of raw materials (i.e., urban, forestry, industrial, and agricultural) that have the potential to be used as catalyst precursors and biofuel feedstock. Finally, a techno-economic analysis, the main challenges, and the future scope of the diverse methods used to prepare biofuels and catalysts are discussed. This review examines numerous aspects from biomass to catalysts, thus providing relevant information for researchers, students, policymakers, and industry experts. Graphical abstract

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Kinetic study of the catalytic cracking of waste motor oil using biomass-derived heterogeneous catalysts

Cited by 9 publications

References 49 publications

Rapid Waste Motor Oil Conversion into Diesel-Range Hydrocarbons Using Hydrochar as Catalyst: Kinetic Study and Product Characterization

Rapid Waste Motor Oil Conversion into Diesel-Range Hydrocarbons Using Hydrochar as Catalyst: Kinetic Study and Product Characterization

Preparation of Adsorbent Materials from Rice Husk via Hydrothermal Carbonization: Optimization of Operating Conditions and Alkali Activation

Application of waste biomass for the production of biofuels and catalysts: a review

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