17-05-2013 | Claudete Bernardo Henriques; Julio Cesar Laurentino Alves; Ronei Jesus Poppi; Rubens Maciel Filho; Maria Izabel Mare ..., Energy & Fuels, 2013

The previous characterization of petroleum by real-time analysis is a need in many refining plants and is considered a complex challenge because of the feedstock characteristics, which can vary over a widely extended range. Typical examples consist of petroleum analysis for the determination ...

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17-05-2013 | F. Wang; J. Mi; P. Li, Energy & Fuels, 2013

In this paper, a classification of combustion regimes is investigated for the diffusion flame of a hydrocarbon fuel jet in hot flue-gas co-flow (JHC) with varying oxygen fraction (up to 100%). Numerical simulations by computational fluid dynamics (CFD) are performed to obtain both ...

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17-05-2013 | Juliana Giraldo; Nashaat N. Nassar; Pedro Benjumea; Pedro Pereira-Almao; Farid B. Cortés, Energy & Fuels, 2013

The deposition of asphaltenes is one of the most difficult problems to overcome in crude oil production and processing. The presence of asphaltenes in crude oil and, consequently, the adsorption and deposition of asphaltenes on rock surfaces, affects rock properties such as porosity, ...

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17-05-2013 | Yinhua Pan; Yuhong Liao; Quan Shi; Chang Samuel Hsu, Energy & Fuels, 2013

Five heavily biodegraded tar sand bitumens from an oil column were separated into maltene and asphaltene fractions for analysis by negative-ion electrospray (ESI) Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). These bitumens have an identical source, which have ...

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16-05-2013 | Louise With Sengeløv; Troels Bruun Hansen; Carmen Bartolomé; Hao Wu; Kim H. Pedersen; Flemming J. Frandsen; Anker D. ..., Energy & Fuels, 2013

The interaction between alkali chloride and sulfur oxides has important implications for deposition and corrosion in combustion of biomass. In the present study, the sulfation of particulate KCl (90–125 μm) by SO2 was studied in a fixed bed reactor in the temperature range 673–1023 K and with ...

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16-05-2013 | Kristian Sandengen; Kåre Solbakken; Leif O Jøsang, Energy & Fuels, 2013

Breakthrough of alkaline water from one producing zone mixing with formation water and oil from a different zone could potentially give severe calcium naphthenate scaling. In this scenario pre-equilibrated formation water and oil mix with alkaline water that has previously not been in contact ...

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14-05-2013 | A. H. M. Shahadat Hussain; Hongyun Yang; Bruce J. Tatarchuk, Energy & Fuels, 2013

The adsorption mechanisms for aliphatic and aromatic sulfur compounds onto Ag/TiOx–Al2O3 (10 wt % Ag; Ti/Al = 1:4.4 by weight) adsorbent were investigated in this paper. The mesoporous mixed-oxide-supported silver adsorbent demonstrated promising sulfur adsorption capacities (∼10 mg of S/g of ...

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14-05-2013 | Hongxing Ni; Chang Samuel Hsu; Chao Ma; Quan Shi; Chunming Xu, Energy & Fuels, 2013

We have investigated and established a preparative method of using a solid-phase extraction cartridge containing Ag+-exchange resin (Ag+-SPE) for separating olefins and paraffins in the saturate fractions of coal tar and petroleum coker oil. The successful separation of paraffins and olefins ...

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14-05-2013 | Tae Wook Kim; Anthony R. Kovscek, Energy & Fuels, 2013

The wettability of reservoir rock is a crucial factor controlling displacement efficiency and ultimate oil recovery. In this study, the wettability of carbonate reservoir rocks as a function of temperature has been studied by measuring the Amott index to water using an X-ray computed ...

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14-05-2013 | Yueshi Wu; Qinglin Zhang; Weihong Yang; Wlodzimierz Blasiak, Energy & Fuels, 2013

Biomass gasification is regarded as one of the most promising energy recovery technologies for the widespread use of biomass. Mathematical models have been developed to understand this process in downdraft fixed beds using zero- and one-dimensional models, but only a limited number of ...

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