Results 91 to 100 of about 1,890 (210)

Dissulfeto de molibdênio, um material multifuncional e surpreendente Molybdenum disulfide, a multifunctional and remarkable material

Química Nova, 2002
The aim of this work is to review the chemical and physical properties of layered molybdenum disulfide. The three polymorphic/polytypic modifications of the compound were found, the polytypes 2H (molybdenite) and 3R are semiconductors while the polymorph
Fernando Wypych
doaj   +1 more source

Hydrotreatment of fast pyrolysis oil: Effects of esterification pre-treatment of the oil using alcohol at a small loading [PDF]

, 2016
Aiming to retard the self-polymerization of the reaction intermediates during bio-oil upgrading process, a large amount of alcohol (e.g., 50 wt% with respect to bio-oil) was used in the stabilization of fast pyrolysis oil by esterification before ...
Reyhanitash, Ehsan, Yuan, Zhongshun, Albion, Katherine, Tymchyshyn, Matthew, Van Rossum, Guus, Xu, Chunbao (Charles)   +5 more
core   +1 more source

Control of Refining Processes on Mid-Distillates by Near Infrared Spectroscopy

Oil & Gas Science and Technology, 1999
The purpose of this paper is to demonstrate the accuracy of physicochemical determinations based on equations calculated by multivariate analysis of near infrared spectra which gives access to simultaneous analyses both on-line and off-line.
Zanier-Szydlowski N., Quignard A., Baco F., Biguerd H., Carpot L.   +4 more
doaj   +1 more source

Effect of chemical composition and quality of heavy yarega oil on selection of appropriate processing technology

Записки Горного института, 2016
The paper explores physical and chemical properties and composition of heavy oil from Yarega field and its vacuum residue, i.e. the tar. The capillary chromatography and gas chromatography-mass spectrometry were used to identify specific group ...
N. K. Kondrasheva, Anchita Khorkhe
doaj   +1 more source

Catalytic hydrotreatment of fast pyrolysis oil: Model studies on reaction pathways for the carbohydrate fraction [PDF]

, 2009
Fast pyrolysis oil can be upgraded by a catalytic hydrotreatment (250-400° C, 100-200 bar) using heterogeneous catalysts such as Ru/C to hydrocarbon-like products that can serve as liquid transportation fuels.
Arentz, J.,, Rasrendra, C. B., Rasrendra, C. B.,, Venderbosch, R. H.,, Arentz, J., Heeres, H. J.; id_orcid, Heeres, H. J.,, Wildschut, J.,, Wildschut, J., Heeres, H. J., Venderbosch, R. H.   +10 more
core   +1 more source

Hydrotraitement de gazoles craqués Hydrotreatment of Cracked Gas Oils

Oil & Gas Science and Technology, 2006
L'hydrotraitement de divers gazoles craqués a fait l'objet d'une étude au moyen de catalyseurs du type NiMo/AI2O3, CoMo/AI2O3 et WNi/AI2O3 pour diverses conditions expérimentales.
Galiasso R., Badras C., Garcia W., Ramirez De Agudelo R., Rodriguez E.   +4 more
doaj   +1 more source

Release of Organonitrogen and Organosulfur Compounds during Hydrotreatment of Pocahontas No. 3 Coal Residue over an Activated Carbon [PDF]

, 2015
Release of Organonitrogen and Organosulfur Compounds during Hydrotreatment of Pocahontas No.
Lin-Bing Sun (1267383), Xian-Yong Wei (1263141), Xiao-Qin Liu (1267380), Zhi-Min Zong (1263138), Wen Li (143214)   +4 more
core   +1 more source

Selective Extraction and Hydrotreatment of Biocrude from Sewage Sludge: Toward High-Yield, Alkane-Rich, Low-Heteroatom Biofuels

Energies
This study investigates the hydrothermal liquefaction (HTL) of sewage sludge across a temperature range of 250–375 °C, combined with selective solvent extraction and catalytic hydrotreatment to produce high-quality biocrude.
Muhammad Usman, Shuo Cheng, Sasipa Boonyubol, Muhammad Aziz, Jeffrey S. Cross   +4 more
doaj   +1 more source

Fatty Acid Hydrotreatment Using Hypercrosslinked Polystyrene-Supported Pd Catalysts to Produce Biofuels

Chemical Engineering Transactions, 2016
Current work is devoted to the search of novel technologies of biofuel production from non-eatable or waste cooking oils and fats. One of such technique is hydrofining which includes the following processes – hydrodeoxygenation, hydrocracking ...
A.A. Stepacheva, V.G. Matveeva, E.M. Sulman, V.N. Sapunov   +3 more
doaj   +1 more source

Zirconia-supported Pt, Pd, Rh, Ru and Ni catalysts in the hydrotreatment of fatty amides and amines [PDF]

Active catalysts for simultaneous hydrodeoxygenation (HDO) and hydrodenitrogenation (HDN) enable the production of fuels from renewable feedstocks.
Reetta, Karinen, Riikka L., Puurunen, Sylvia, Albersberger, Marja, Tiitta, Emma, Verkama, Kristoffer, Meinander   +5 more
core   +1 more source