For example, mixed iron oxide nanoparticles synthesized in situ from the iron(III) acetylacetonate complex are shown to be efficient catalysts for in situ upgrading of heavy oil [12, 13 ...
optimization of the reaction conditions with iron oxide dispersed nanoparticles (≤50 nm) for in situ catalytic upgrading of heavy oil was carried out at the following ranges; temperature 355−425 °C, reaction time 20−80 min, agitation 200−900 rpm, initial hydrogen pressure 10−50 bar, and iron metal loading 0.03−0.4 wt %.
A study of the feasibility of upgrading rare earth elements minerals from iron-oxide-silicate rich tailings using Knelson concentrator and shaking table ... A number of gravity separation techniques for rare earth elements (REE) minerals have been investigated and reported in the literature. These include …
Our recent studies of the application of iron-based oxide catalysts to upgrading of heavy oils under sub-/super- critical water conditions are reviewed.The effect of reaction parameters on the …
Catalytic upgrading is due to hydrogenation and results in about a 50% sulfur removal and an 8° API gravity increase. Additionally, the heated catalyst was found to be efficient at converting …
Vacuum distillation residue upgrading of Tehran oil refinery, Iran, using microwave was performed, and the effects of different parameters on temperature, viscosity, API 1 gravity, and asphaltene were evaluated. The various catalysts effects (iron, nickel, copper, MoS 2, Fe 2 O 3), microwave power level at three levels (50, 70, ), activated carbon at four levels (5, 10, …
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 investigated.
Next, three iron supported nanocatalysts were prepared by dispersion of commercial 20 nm, 60 nm and 90 nm iron oxide nanoparticles in a natural silica support (see Experimental Section for details). In the presence of iron-containing nanocatalysts, further improvement in the upgraded crude oil properties were obtained (Table 1, Runs 3–5).
Upgrading of bitumen was carried out under sub- and super-critical conditions using an FeO x-based catalyst.. Heavy oil was effectively decomposed over the FeO x-based catalyst using sub-critical water.. Decomposition of bitumen over the catalyst proceeded efficiently at 19.0 MPa and above 673 K.. The catalyst after removal of coke deposited by calcination in air …
A novel direct method in one-step for catalytic heavy crude oil upgrading using iron oxide nanoparticles. O. Morelos-Santos, A. I. Reyes de la Torre, J. A. Melo-Banda, P ... API gravity and heavy fractions decrease, for example, the residue conversion was about 20 % and the kinetic model was adjusted to a five lump model. The formation of the ...
An iron oxide film was formed on the particle surface in the OCS-1100 °C due to the migration of Fe element and the increase in thickness up to ∼ 5 μm with elevated oxidation temperature. ... A physico-chemical separation process for upgrading iron from waste. Int J Miner Process, 124 (2013), pp. 124-127. View PDF View article View in ...
Detailed optimization of the reaction conditions with iron oxide dispersed nanoparticles (≤50 nm) for in situ catalytic upgrading of heavy oil was carried out at the following ranges; temperature 355–425 °C, reaction time 20–80 min, agitation 200–900 rpm, initial hydrogen pressure 10–50 bar, and iron metal loading 0.03–0.4 wt %. It ...
Our recent studies of the application of iron-based oxide catalysts to upgrading of heavy oils under sub-/super-critical water conditions are reviewed. The effect of reaction parameters on the …
The API gravity and viscosity reduction achieved using dispersed particulate Co-Mo/γ-Al 2 O 3 catalyst was 3 o points and 2 % above that obtained with pelleted fixed-bed catalyst (5.6 o API and 97.1%). ... alumina (Al 2 O 3 ), silica -alumina (SiO 2 -Al 2 O 3 ) supported iron oxide (10 wt% Fe) catalysts were prepared by wet impregnation method ...
The upgrading of rare earth oxides from iron-oxide silicate rich tailings: Flotation performance using sodium oleate and hydroxamic acid as collectors. ... Gravity concentration may be also exploited to reject liberated low specific gravity …
A novel direct method in one-step for catalytic heavy crude oil upgrading using iron oxide nanoparticles. O. Morelos-Santos, A. I. Reyes de la Torre, J. A. Melo-Banda, P. Schacht-Hernández, B. Portales ... Iron Oxide Nanoparticles . Heavy Crude Oil . Heavy Oil Upgrading . Nanoparticles 66%. Thermal Decomposition Method 66% ...
Detailed optimization of the reaction conditions with iron oxide dispersed nanoparticles (≤ 50 nm) for in situ catalytic upgrading of heavy oil was carried out at the following ranges ...
optimization of the reaction conditions with iron oxide dispersed nanoparticles (≤50 nm) for in situ catalytic upgrading of heavy oil was carried out at the following ranges; temperature 355−425 …
A representative white sand sample was investigated for glass industry. Complete characterization of the sample was conducted. Chemical analysis of the sample showed that iron and alumina oxides ...
The aim of the present work was to investigate the catalytic efficiency of iron based compounds like carbonyls, iron oxide, metallic iron for thermal upgrading of heavy crude oil at …
the on-site upgrading of heavy oil including bitumen derived from the SAGD (Steam Assisted Gravity Drainage) method, in which bitumen is mined with water under high temperature and pressure. ... continuous upgrading of bitu-men over iron-based oxide catalyst was evaluated with the high pressure flow type reactor. Figure 5 shows the effect of ...
The advantage of heavy oil upgrading by using iron oxide nanoparticles in SCW + FA solution is that water pressure can enhance the capability of catalyst in providing the oxygen for the oxidative cracking as well as the effective hydrogenation of heavy oil by active hydrogen from the water-gas shift reaction. ... specific gravity of VR at T ...
The black sand magnetite is a raw material to produce iron and steel. High content magnetite in the top meter beach sands of the north-west of El-Burullus Lake of Egypt is separated and mineralogically and geochemically investigated. Magnetite content obtained by laboratory techniques varies between 2.92 and 0.11 wt%, with 1.15 wt% average. It represents …
Viscosity and API gravity analysis before an d a er upgrading of heavy oil at 320 °C and 6 h reaction . time. Fig. 8. ... iron oxide as a catalyst. Energy Fue ls. 29, 6306–6316.
Semantic Scholar extracted view of "A study of the feasibility of upgrading rare earth elements minerals from iron-oxide-silicate rich tailings using Knelson concentrator and shaking table" by G. Abaka-Wood et al.
We proposed a direct in situ synthesis method for iron oxide nanoparticles (NPs) along with catalytic erformance upgrading of heavy crude oil (HCO). Our method compares the upgrading of a HCO where other iron oxide nanoparticles were synthesized by a traditional thermal decomposition method of organometallic compounds in the presence of stabilizing …
First, low-intensity magnetic separation (LIMS) was assessed to remove iron oxides from the heavy mineral gravity concentrate. The non-magnetic fraction was then processed using a WHIMS to determine if the various REMs could be effectively separated from zircon. ... However, upgrading was impacted after each subsequent pass and the grade of ...
the iron oxide upgrading process used to produce a treatment slurry is one configured to optimize recovery of western Mesabi ... oxides such as goethite that are not recovered in primary recovery circuits including for example density or specific gravity based recovery circuits such as heavy media separators, Humphrey spirals, jig tables ...