Enhancing Gasoline Range Hydrocarbons by Catalytic Co-pyrolysis of Rice Husk with Low Density Polyethylene (LDPE) Using Zeolite Socony Mobil#5(ZSM-5)

Binnal, Prakash; Mali, Vinayak Suresh; Karjekannavar, Shruthi Puttappa; Mogaveera, Sumanth Raj

doi:10.3311/ppch.13850

Cited by 11 publications

(4 citation statements)

References 19 publications

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“…Table 1 shows the product yields for 10Co-5Fe/AC catalyst in catalytic cracking of WCO at temperature range of 400-550 °C. The liquid yield decreased with increasing reaction temperature while the gaseous product (38 wt.%) increased significantly due to extensive cracking [24]. More fatty acids were converted to other intermediates or products at a higher reaction temperature.…”

Section: Effect Of Reaction Temperaturementioning

confidence: 99%

Performance of Activated Carbon Supported Cobalt Oxides and Iron Oxide Catalysts in Catalytic Cracking of Waste Cooking Oil

Thangadurai

Tye

2021

Period. Polytech. Chem. Eng.

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This work studied the catalyst activity of activated carbon (AC) supported Co, Fe and Co-Fe oxides in catalytic cracking of waste cooking oil. Reactions were carried out in a fixed bed reactor at 450 °C with WHSV 9 hr–1. Single metal Co/AC and Fe/AC catalysts with different metal loading (2.5–15 wt.%) and bimetal xCo-yFe/AC (x, y = 2.5 to 12.5 wt.%; x + y =15 wt.%) catalysts were investigated. Co/AC and Fe/AC catalysts both contributed to significant liquid yield with high selectivity towards C15 and C17 hydrocarbons. Fe/AC catalysts gave high C5 – C20 hydrocarbon yield whereas Co/AC attained more palmitic (C16) and oleic (C18) acid conversion. Synergistic effect in two metals Co-Fe/AC catalysts had further improved the liquid hydrocarbon yield (up to ~93 %) and fatty acid conversion (up to 94 %). The best catalyst, 10Co-5Fe/AC had been further tested under the effect of reaction temperature, feed flow rate (WHSV) and deactivation for its catalytic performance.

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Section: Effect Of Reaction Temperaturementioning

confidence: 99%

Performance of Activated Carbon Supported Cobalt Oxides and Iron Oxide Catalysts in Catalytic Cracking of Waste Cooking Oil

Thangadurai

Tye

2021

Period. Polytech. Chem. Eng.

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“…A SS 304 pyrolysis reactor capacity of 5 L was used in present study to produce biochar (Figure 5). The construction details and specifications of reactor have been described in our previous work 19 …”

Section: Methodsmentioning

confidence: 99%

“…The construction details and specifications of reactor have been described in our previous work. 19 The reactor was charged with 50 g of feed and heated at a rate of 500 °C under a nitrogen atmosphere for 1 h. The heating rate was 17 °C/min, ensuring slow pyrolysis conditions. Biochars were produced from various feed compositions and named as follows:…”

Section: Preparation Of Biochar Samplesmentioning

confidence: 99%

Upgrading rice husk biochar characteristics through microwave‐assisted phosphoric acid pretreatment followed by co‐pyrolysis with LDPE

Binnal

Kumar

Parameshwaraiah

et al. 2022

Biofuels Bioprod Bioref

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In the present study, an attempt was made to upgrade the characteristics of rice husk biochar through a combination of two strategies: (i) microwave‐assisted phosphoric acid pretreatment (MAPP) of rice husk followed by (ii) co‐pyrolysis of pretreated rice husk with low‐density polyethylene (LDPE). The analysis of pretreated rice husk through biochemical composition, proximate analysis, ultimate analysis, thermogravimetric analysis (TGA), and X‐ray diffraction (XRD) showed that MAPP significantly improved the properties of rice husk. The pretreated rice husk had higher fixed carbon and volatile matter as compared with untreated rice husk (19.65% v/s 13.35% and 66.24% v/s 61.93%) and its ash content was lower than untreated rice husk (9.75% v/s 16.85%). The TGA analysis showed that MAPP improved the thermal stability of rice husk. At 719.65 °C, the residual masses of rice husk and pretreated rice husks were 13.76% and 23.75% respectively. An analysis of properties of biochars revealed that, biochar produced through combined mode had the highest carbon content (86.14%), the least ash content (1.29%), the least H/C and O/C values (0.29 and 0.09), and the highest Brunauer Emmett and Teller (BET) surface area (35.022 m2/g). Raman spectroscopy and XRD results showed that the biochar had a more orderly structure and less structural defects as compared to biochar produced from rice husk alone. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

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“…34,[47][48][49] Numerous research studies have been carried out on the co-pyrolysis of lignocellulosic biomass (including the rice husk) with several co-feeding materials, with or without catalysts. [50][51][52][53][54][55][56][57][58][59] However, despite the numerous advantages of conventional co-pyrolysis process of lignocellulosic biomass with several hydrogen-rich co-feeding materials (such as synthetic plastics, organic polymers, other biomass like algae, etc. ), the co-pyrolysis liquids are still not as stable as the conventional diesel or other fossil fuels due to a number of factors (such as the existence of high water content, high oxygen content, etc.)…”

Section: Introductionmentioning

confidence: 99%

Catalytic co‐pyrolysis of macroalgal components with lignocellulosic biomass for enhanced biofuels and high‐valued chemicals

Uzoejinwa

Cao

Wang

et al. 2021

Intl J of Energy Research

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This study focuses on catalytic co-pyrolysis of a lignocellulosic biomass (rice husk) and main components of the seaweed Enteromorpha clathrata (ie, protein, polysaccharide, and ash) using TGA and Py-GC/MS analytical techniques with the aim and novelty to unveil their catalytic co-pyrolysis thermal behaviors and synergistic effect of interactions between their catalytic co-pyrolysis volatiles for enhanced biofuels and high-valued chemicals production. Thus, in this study, rice husk was treated with macroalgal major components over ZSM-5, MCM-41, and blend of both catalysts using the Py-GC/MS analytical technique to improve the quality of rice husk bio-oil. Thermogravimetric analysis studies of pyrolysis, co-pyrolysis, and catalytic co-pyrolysis of lignocellulosic biomass with seaweed main components were also performed. Effects of HZSM-5, MCM-41, and blend of both catalysts on catalytic co-pyrolysis products distributions were also studied and compared. Results revealed that the quality and chemical compositions of rice husk bio-oil were significantly improved owing to the synergistic effect of interactions between volatiles of rice husk and seaweed main components during catalytic co-pyrolysis. Also, catalytic co-pyrolysis of macroalgal components and lignocellulosic biomass with ZSM-5, MCM-41, and blends of both catalysts were found to considerably reduce the oxygenated compounds, and greatly improved selectivity of monocyclic aromatic hydrocarbons in the bio-oil. However, MCM-41 offered a stronger positive upgrading effect than ZSM-5 catalyst. This could be attributed to its greater ability in raising the selectivity of aromatic hydrocarbons and reduction of activation energies of the degradation reactions. It was also observed that blends of both catalysts offered a higher upgrading effect than ZSM-5 and MCM-41 catalysts alone. Novelty Statement• Catalytic c-pyrolysis of macroalgal components and lignocellulosic biomass with ZSM-5, MCM-41, and blends of these catalysts greatly improved selectivity of monocyclic aromatic hydrocarbons in the bio-oil.Benjamin Bernard Uzoejinwa and Bin Caocontributed equally to this study.

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Enhancing Gasoline Range Hydrocarbons by Catalytic Co-pyrolysis of Rice Husk with Low Density Polyethylene (LDPE) Using Zeolite Socony Mobil#5(ZSM-5)

Cited by 11 publications

References 19 publications

Performance of Activated Carbon Supported Cobalt Oxides and Iron Oxide Catalysts in Catalytic Cracking of Waste Cooking Oil

Performance of Activated Carbon Supported Cobalt Oxides and Iron Oxide Catalysts in Catalytic Cracking of Waste Cooking Oil

Upgrading rice husk biochar characteristics through microwave‐assisted phosphoric acid pretreatment followed by co‐pyrolysis with LDPE

Catalytic co‐pyrolysis of macroalgal components with lignocellulosic biomass for enhanced biofuels and high‐valued chemicals

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