Catalytic conversion of canola oil to fuels and chemical feedstocks Part I. Effect of process conditions on the performance of HZSM‐5 catalyst

Prasad, Yadavali Siva; Bakhshi, Narendra N.; Mathews, J. F.; Eager, R. L.

doi:10.1002/cjce.5450640218

Cited by 62 publications

(59 citation statements)

References 8 publications

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“…Prasad et al performed a DOE on HZSM-5 catalyst in a fixed bed micro-reactor and results showed that 60-95 wt% of the canola oil can be converted to hydrocarbons in the gasoline boiling range, with 60-70 wt% aromatic hydrocarbons [14]. They subsequently added steam to the inlet and found a two-fold increase in catalyst life while keeping the same aromatic concentration in the liquid product [15].…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Production of Renewable Aromatics via Crop Oil Catalytic Cracking

et al. 2015

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While HZSM-5 catalytic cracking of crop oil toward aromatics have been well documented, this work adds to this body of knowledge with a full acid byproduct analysis that provides improved mass balance closure along with a design of experiment optimization of reaction conditions. Fatty acids are an inevitable byproduct when converting any triglyceride oil, but are most often overlooked; despite the impact fatty acids have on downstream processing. Acid analysis verified that only short chain fatty acids, mainly acetic acid, were present in low quantities when all feed oil was reacted. When relatively high fatty acid amounts were present, these were mainly uncracked C16 and C18 fatty acids. Optimization is a balance of aromatics formation vs. unwanted gas products, coke and residual fatty acids. A design of experiments approach was used to provide insight into where the optimal reaction conditions reside for HZSM-5 facilitated reactions. These conditions can then form the basis for further development into a commercially viable process for the production of renewable aromatics and other byproducts.

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Section: Introductionmentioning

confidence: 99%

Optimizing the Production of Renewable Aromatics via Crop Oil Catalytic Cracking

et al. 2015

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“…Therefore, the conversion of palm oil decreased as the reaction temperature increased. Catalytic conversion of canola oil was found to increase with an increase in reaction temperature, and decrease with an increase in space velocity (Prasad et al, 1986). It reached 96wt% conversion or complete conversion at 400°C with space velocity of 2 h-'.…”

Section: Resultsmentioning

confidence: 93%

Catalytic conversion of palm oil to fuels and chemicals

1999

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The conversion of palm oil to hydrocarbons using a shape selective zeolite catalyst is reported in this work. Palm oil was passed over HZSM-5 catalyst in a fixed bed micro-reactor and the reactor was operated at atmospheric pressure, a temperature range of 360 to 420°C and weight hourly space velocity (WHSV) of 2 to 4 h-'. The main objective was to study the effect of reaction temperature and oil space velocity on the conversion and selectivity of gasoline range hydrocarbons. The results show that 40 to 70wt% of the palm oil can be converted to aromatics and hydrocarbons in the gasoline, diesel and kerosene range, light gases, coke and water. The maximum gasoline range hydrocarbons yield of 40wt% of total product formed was obtained at 400°C and 2 h-l space velocity.On decrit dans ce travail la conversion de I'huile de palme en hydrocarbures a l'aide d'un catalyseur de zeolite selectif par rapport a la forme. L'huile de palme a ete passee sur un catalyseur HZSM-5 dans un microreacteur a lit fixe, qui a fonctionne a la pression atmospherique, avec des temperatures de 360 -420°C et des poids par poids par heure (PPH) de 2 -4 h-l. Le principal objectif etait d'etudier I'effet de la temperature de reaction et de la vitesse spatiale de I'huile sur la conversion et la selectivite des hydrocarbures de la gamme des essences. Les resultats montrent que 40 -70% en poids de I'huile de palme peuvent Ctre convertis en aromatiques et hydrocarbures dans la gamme des essences, des diesels et des kerosenes, dans les gaz Iegers, le coke et I'eau. Le rendement maximal des hydrocarbures de la gamme des essences representant 40% en poids du produit total forme a ete obtenu a 400°C et a la vitesse spatiale de 2 h-'.

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“…In an earlier work [12][13][14][15][16][17], we studied the catalytic upgrading of cano1a oil over various acid catalysts such as HZSM-5, HY, H-mordenite, aluminum-pillared clays, silica-alumina and silico-alumino phosphates using a fixed-bed reactor in order to determine the effects on oil conversion and product distribution of catalyst characteristics such as acidity and acid site distribution, crystallinity, pore size and pore size distribution as well as to study the thermal stability of the catalyst under various operating environments. These studies showed that there were dramatic variations in both the overall oil conversion and yields of individual product for different catalysts used.…”

Section: Introductionmentioning

confidence: 93%

“…They were selected based on previous studies [12][13][14][15][16][17] in a fixed-bed reactor which showed that the product distributions obtained with these three catalysts were widely different.…”

Section: Catalyst Preparation and Characterizationmentioning

confidence: 99%

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Catalytic Conversion of Canola Oil in a Fluidized Bed Reactor

Katikaneni

Adjaye

Idem

et al. 1997

Developments in Thermochemical Biomass Conversion

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Studies were conducted in a fluidized-bed reactor at atmospheric pressure, reaction temperatures in the range 400-500°C and fluidizing gas flow rates ranging from 175-275 mL/min to study the product distribution obtained from the conversion of canola oil over HZSM-5, silica-alumina and HS-Mix (a physical mixture containing 20 wt% HZSM-5 and 80 wt% silica-alumina).Canola oil conversions increased with reaction temperature and were in the range 73-98 wt%. The product distribution mostly consisted of hydrocarbon gases in C1-C5 range, a mixture of aromatic and aliphatic hydrocarbons in the organic liquid product (OLP) and coke. Also, the product distribution varied widely and depended strongly on the catalyst type and operating conditions.It was interesting to observe that Cz-C4 olefins fraction in the gas product depended on reaction temperature and type of catalyst but was not affected significantly by changes in fluidization gas flow rate. On the other hand, C5 + hydrocarbon gases increased markedly with both an increase in the fluidization gas flow rate and a decrease in reaction temperature.The OLP obtained over HZSM-5 contained mostly aromatic hydrocarbons whereas those for silica-alumina and HS-Mix contained considerable amounts of aliphatic hydrocarbons in addition to small amounts of aromatic hydrocarbons. Furthermore, both the reaction temperature and catalyst type determined whether the fractions of aromatic hydrocarbons in the OLP were higher in the fluidized-bed or fixed-bed reactor.

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Catalytic conversion of canola oil to fuels and chemical feedstocks Part I. Effect of process conditions on the performance of HZSM‐5 catalyst

Cited by 62 publications

References 8 publications

Optimizing the Production of Renewable Aromatics via Crop Oil Catalytic Cracking

Optimizing the Production of Renewable Aromatics via Crop Oil Catalytic Cracking

Catalytic conversion of palm oil to fuels and chemicals

Catalytic Conversion of Canola Oil in a Fluidized Bed Reactor

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