Jatropha-oil conversion to liquid hydrocarbon fuels using mesoporous titanosilicate supported sulfide catalysts

Sharma, Ramesh K.; Anand, M.; Rana, B; Kumar, Rohit; Farooqui, Saleem Akhtar; Sibi, Malayil Gopalan; Sinha, Anil K.

doi:10.1016/j.cattod.2012.05.036

Cited by 55 publications

(25 citation statements)

References 36 publications

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“…The sulfide Ni-Mo and Co-Mo catalysts were used for the hydroprocessing of jatropha oil. It was found that catalyst was a significant factor for the performance in terms of yield of kerosene range hydrocarbons [12]. However, using noble metal catalysts and hydrogen will largely increase the processing cost.…”

Section: Introductionmentioning

confidence: 99%

Catalytic cracking of inedible camelina oils to hydrocarbon fuels over bifunctional Zn/ZSM-5 catalysts

Zhao

Wei

Julson

et al. 2015

Korean J. Chem. Eng.

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Catalytic cracking of camelina oils to hydrocarbon fuels over ZSM-5 and ZSM-5 impregnated with Zn 2+ (named bifunctional catalyst) was individually carried out at 500 o C using a tubular fixed-bed reactor. Fresh and used catalysts were characterized by ammonia temperature-programmed desorption (NH 3 -TPD), X-ray diffractometer (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) and nitrogen isothermal adsorption/desorption micropore analyzer. The effect of catalysts on the yield rate and qualities of products was discussed. The loading of Zn 2+ to ZSM-5 provided additional acid sites and increased the ratio of Lewis acid site to Brøn-sted acid site. BET results revealed that the surface area and pore volume of the catalyst decreased after ZSM-5 was impregnated with zinc, while the pore size increased. When using the bifunctional catalyst, the pH value and heating value of upgraded camelina oils increased, while the oxygen content and moisture content decreased. Additionally, the yield rate of hydrocarbon fuels increased, while the density and oxygen content decreased. Because of a high content of fatty acids, the distillation residues of cracking oils might be recycled to the process to improve the hydrocarbon fuel yield rate.

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Section: Introductionmentioning

confidence: 99%

Catalytic cracking of inedible camelina oils to hydrocarbon fuels over bifunctional Zn/ZSM-5 catalysts

Zhao

Wei

Julson

et al. 2015

Korean J. Chem. Eng.

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“…To solve this problem, we propose using hydrotreating catalysts with enhanced acid properties ensured by introducing zeolites [10,11] and mixed oxides SiO 2 -Al 2 O 3 [7,8] and SiO 2 -TiO 2 [9] into the support. We also propose hydroisomerizing the diesel fuel component using catalysts based on noble metals (Pt, Pd, Ru), including those supported on acidic materials SAPO 11 [12], HZSM 22 [13], and SAPO 11/Al 2 O 3 [14].…”

Section: Hydrocracking Of Vegetable Oil On Boron Containing Catalystsmentioning

confidence: 99%

Hydrocracking of vegetable oil on boron-containing catalysts: Effect of the nature and content of a hydrogenation component

et al. 2016

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Catalysts based on metals (Pt, Pd) and metal oxides (NiO, Co 3 O 4 , MoO 3 , WO 3 ), supported on the surface of borate containing aluminum oxide (B 2 O 3 -Al 2 O 3 ), in the hydrocracking of sunflower oil at a tem perature of 400°C, a pressure 4.0 MPa and a mass hourly space velocity MHSV 5.0 h -1 are compared. H 2 TPR and IR spectroscopy of adsorbed CO and ESDR show that the hydrogenation catalyst components are Pt 0 and Pd 0 , a mixture of Ni 2+ + Ni 0 , Co 2+ + Co 0 , or a mixture of the highest and partially reduced oxides of Mo and W. It is established that catalysts containing Pt, Pd, NiO and Co 3 O 4 , ensure complete oil hydrode oxygenation. The main oxygen removal reactions in Pt and Pd systems are decarboxylation and hydrode carbonylation. For catalysts with NiO and Co 3 O 4 , characteristic reactions are reduction and methanation. The highest yield of the diesel fraction was obtained on Pt/B 2 O 3 Al 2 O 3 catalysts with metal contents of 0.3-1.0 wt %. Along with n alkanes, the diesel fractions obtained on these catalysts include cycloalkanes and iso alkanes (up to around 40 wt %) and aromatic hydrocarbons present in trace amounts. Hydrocracking on the Pt system at 400°C for 20 h with MHSV of 1.0 h -1 produces a diesel fraction with a yield of at least 82.0 wt % and the content of iso alkanes at least 76.1 wt %.

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“…The liquid temperature profile is lower than the wall temperature profile due to the difference in the heat transfer coefficient. 16,34,35…”

Section: Results Of Hydrocracking Reactor Modelmentioning

confidence: 99%

Hydro‐conversion of oleic acid in bio‐oil to liquid hydrocarbons: an experimental and modeling investigation

Forghani

Lewis

2015

J of Chemical Tech & Biotech

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BACKGROUND This study focused on understanding the reaction kinetics for the hydrocracking process. Oleic acid, as the main component of most bio‐oils, was selected as feedstock for the hydrocracking process. The hydrocracking of oleic acid was performed in a laboratory scale trickle‐bed reactor in the presence of a Ni–Zeolite β catalyst and hydrogen for hydrogenation. The concentrations of oleic acid and the three main components of jet fuel range hydrocarbons produced, which are nonane, decane and dodecane (C9, C10 and C12), were measured with GC analysis. RESULTS According to the aforementioned component concentrations, the rate of reaction and the related Arrhenius equation parameters were estimated. The reaction kinetic calculations were subjected to hydrocracking reactor modeling to gain a better understanding of hydrocracking. The concentrations of C9, C10 and C12 were assumed to be a separate lump of the hydrocarbons produced, namely middle hydrocarbon (MC). The reactant and MC lump concentrations throughout the reactor were measured and compared with experimental data. The modeling and experimental results are in reasonable agreement in terms of MC lump production and oleic acid conversion. The oleic acid and MC concentration profiles and reactor wall temperature profiles along the reactor were examined in this research. CONCLUSION The outcome of this study can be applied in simulation and commercialisation of hydrocracking as a potential process for biofuel production. © 2014 Society of Chemical Industry

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Jatropha-oil conversion to liquid hydrocarbon fuels using mesoporous titanosilicate supported sulfide catalysts

Cited by 55 publications

References 36 publications

Catalytic cracking of inedible camelina oils to hydrocarbon fuels over bifunctional Zn/ZSM-5 catalysts

Catalytic cracking of inedible camelina oils to hydrocarbon fuels over bifunctional Zn/ZSM-5 catalysts

Hydrocracking of vegetable oil on boron-containing catalysts: Effect of the nature and content of a hydrogenation component

Hydro‐conversion of oleic acid in bio‐oil to liquid hydrocarbons: an experimental and modeling investigation

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