Recovery of Useful Hydrocarbons from Petroleum Residual Oil by Catalytic Cracking with Steam over Zirconia-Supporting Iron Oxide Catalyst

Fumoto, Eri; Tago, Teruoki; Tsuji, and Toshiro; Masuda, Toshio

doi:10.1021/ef0499067

Cited by 72 publications

(75 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, the Pathway II and aldehydes yields maintained approximately 12 mol%-C and 7 mol%-C, respectively, over 6 h. For the further study of this 5 result, the K content in K[5]/ZrO 2 -FeO X after the catalytic reaction was investigated with an X-ray fluorescence analyzer in our laboratory. It confirmed that the K content still maintained 5 mol% of the total Zr and Fe after the catalytic reaction for 6 h. This well explained the stable yields of the Pathway II and aldehydes over 6 h. [24][25]. Such change in the crystal phase of the catalyst should be responsible for the reduced catalytic activity and the decreased glycerol conversion and allyl alcohol yield.…”

Section: Stability Of K-supported Feo X Catalystsupporting

confidence: 55%

“…Our previous works 10 consider that ZrO 2 -FeO X has an ability to decompose H 2 O molecules into active hydrogen species [23,25]. These active hydrogen species can act as the hydrogen atoms derived from formic acid and play an important role for the formation of allyl alcohol.…”

Section: Catalytic Reactions Over Alkali Metal-supported Zro 2 -Feo Xmentioning

confidence: 99%

“…1. Furthermore, it was also revealed that ZrO 2 -FeO X improved the catalytic stability because ZrO 2 has an ability to produce active oxygen species from H 2 O for regeneration of the consumed lattice oxygen in FeO X [23][24][25]. In our previous research, ZrO 2 -FeO X was considered to have acid sites which generally promote dehydration reaction [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Conversion of glycerol into allyl alcohol over potassium-supported zirconia–iron oxide catalyst

Konaka¹,

Tago²,

Yoshikawa³

et al. 2014

Applied Catalysis B: Environmental

Self Cite

View full text Add to dashboard Cite

The catalytic conversion of glycerol was performed with iron oxide-based catalysts for production of allyl alcohol using a fixed-bed flow reactor at 623 K under atmospheric pressure.The glycerol dehydration proceeds on acid sites of catalysts while the allyl alcohol production is assumed to be catalyzed by non-acidic sites of catalysts through a hydrogen transfer mechanism.Different alkali metals, including Na, K, Rb, and Cs were supported on ZrO 2 -FeO X and all of them gave impressively higher allyl alcohol yield and suppressed glycerol dehydration due to the reduced catalyst acidic property. K-supported ZrO 2 -FeO X (K/ZrO 2 -FeO X ) was chosen for further studies, and allyl alcohol yield remarkably increased up to 27 mol%-C at the K content of 3-5 mol%. Since no external hydrogen gas is supplied to the system, the hydrogen transfer mechanism should take place between the reaction of glycerol and either hydrogen atoms derived from formic acid forming during the reaction, or active hydrogen species produced from the decomposition of H 2 O by ZrO 2 .Addition of Al 2 O 3 to K/ZrO 2 -FeO X (K/Al 2 O 3 -ZrO 2 -FeO X ) was examined in order to improve structure stability during the glycerol conversion. Al 2 O 3 addition to the catalyst was effective to achieve higher structure stability, leading to high glycerol conversion with stable allyl alcohol yield of above 25 mol%-C. Moreover, K/Al 2 O 3 -ZrO 2 -FeO X can be applicable to the conversion of crude glycerol which is the waste solution obtained from biodiesel production.3

show abstract

Section: Stability Of K-supported Feo X Catalystsupporting

confidence: 55%

Section: Catalytic Reactions Over Alkali Metal-supported Zro 2 -Feo Xmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Conversion of glycerol into allyl alcohol over potassium-supported zirconia–iron oxide catalyst

Konaka¹,

Tago²,

Yoshikawa³

et al. 2014

Applied Catalysis B: Environmental

Self Cite

View full text Add to dashboard Cite

show abstract

“…After developing catalysts composed of iron oxide (abbreviated FeO X ) supported on 5 zirconia (ZrO 2 ), alumina (Al 2 O 3 ), and ceria (CeO 2 ) (CeO 2 -ZrO 2 -Al 2 O 3 -FeO X , abbreviated as "FeO X -based catalyst"), we succeeded in producing lighter components from atmospheric residual oil (AR) by catalytic cracking in a steam atmosphere [13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Upgrading of oil sand bitumen over an iron oxide catalyst using sub- and super-critical water

Kondoh

Nakasaka

Kitaguchi

et al. 2016

Fuel Processing Technology

Self Cite

View full text Add to dashboard Cite

Upgrading of oil sand bitumen was examined using a catalyst consisting of CeO 2 -ZrO 2 -Al 2 O 3 -FeO X and sub-and super-critical water in two reactor types: batch-type and fixed-bed flow-type. Bitumen diluted with benzene was used as a feedstock, and the effects of reaction pressure and temperature on product yield were 5 investigated. Under conditions of high pressure (approximately 19 MPa), catalytic decomposition of bitumen proceeded effectively over the FeO X -based catalyst, with the yield of lighter components such as gas oil and vacuum gas oil (VGO) reaching 70 mol%-C at a reaction temperature of 693 K. Moreover, because coke formation on the catalyst was suppressed (less than 10 mol%-C under optimized reaction pressure and 10 temperature), the FeO X -based catalyst showed excellent durability and reusability for catalytic decomposition of bitumen.

show abstract

“…In 2015, the growth of oil sand exploitation will exceed 2 to 3 times than the conventional crude oil production. Moreover, better methods are needed to upgrade partially the heavy crude oil before further processing in refineries in order to convert it into light crude oil [4]- [7].…”

Section: Introductionmentioning

confidence: 99%

Upgrading of Heavy Crude Oil with W-Zr Catalyst

Schacht¹,

Díaz-García²,

Aguilar³

et al. 2014

ACES

View full text Add to dashboard Cite

The main problem of new crude oil reserves is the incipient increase of heavy crude oils in the American continent, i.e. USA, Mexico, Canada and Venezuela. These types of crude oils require several treatments before refining. One of these treatments can be hydrocracking. In this petroleum refining process, it is possible to modify the heavy crude oils to light crude oils. In this paper, we try to use hydrocracking to improve the quality of raw heavy crude oil, through some chemical transformations C-H binding rupture using a catalyst containing active metals such as tungsten and zirconium (W-Zr). After the crude oil was hydrocracked in presence of this novel bimetallic catalyst, the hydrocracked products showed lower content of asphaltenes, resins, sulfur and nitrogen. Also positive changes in the viscosity of crude oil measured as a decreasing of this value were observed. The American Petroleum Institute (API) gravity was significantly increased 6 units. Consequently, all these changes confirmed that the upgrading of the heavy crude oil was successful.

show abstract

Recovery of Useful Hydrocarbons from Petroleum Residual Oil by Catalytic Cracking with Steam over Zirconia-Supporting Iron Oxide Catalyst

Cited by 72 publications

References 15 publications

Conversion of glycerol into allyl alcohol over potassium-supported zirconia–iron oxide catalyst

Conversion of glycerol into allyl alcohol over potassium-supported zirconia–iron oxide catalyst

Upgrading of oil sand bitumen over an iron oxide catalyst using sub- and super-critical water

Upgrading of Heavy Crude Oil with W-Zr Catalyst

Contact Info

Product

Resources

About