... fcc catalyst forum 12 regenerator nh 3 combustion promoter HCN FCC catalyst experiment spectra pyrrole 445BLOCK 2 FORUM 12 TOWARDS UNDERSTANDING THE GENESIS AND REMOVAL OF NOX IN FCC REGENERATORS J. O. Barth, A. Jentys, J. A. Lercher Institut für Technische Chemie, Lehrstuhl II...

... velocities, dips and dip azimuths. The traces which fall within square, rectangular or circular bins are stacked. A trace gather generally comprises traces having different offset azimuths which are accounted for in NMO corrections estimation. The paper is illustrated by time sections and spectra of velocity...

... have been designed incorporating the user in the analysis loop: only discrete horizons are analysed. RMS velocities, refraction corrected interval velocities, frequency spectra, reflection coefficients and transfer functions are estimated continuously. The results are represented in parameter section...

... of a complex shape by recording first arrivals o Reservoir Characterization interpretation pd 9 seismic wave reflection frequency seismic data geological structure Moscow signal-to-noise ratio borehole Upstream Oil & Gas attenuation salt formation absorption reef boundary spectra...

... Intelligence North Sea chemical spill characterisation ocean Draper severe condition water depth constraint-based reasoning wave data distribution function information deeper water Gulf Upstream Oil & Gas great water depth operation spectra significant wave height marine environment...

... routine carbon-1 3 studies and even "high resolution" spectra from solids. X-ray crystallographic methods for determining molecular structures of organic compounds are now routine using new objective approaches which provide direct determinations of structure without need for prior stereochemical...

... positive identifications of isopropyl groups and single methyl branches in the structure of paraffins. The typical spectra of paraffins with single branches longer than methyl complement area measurements in identifying this class of compounds. The precise chemical shifts for nonequivalent methyls...

... information structural analysis examination infrared spectrometry spectrometry application molecule separation petroleum Compound spectra mass spectrometry Chromatography spectrum INTEGRATION AND CO-ORDINATION OF TECHNIQUES Abstract Progress and developments in physical analytical methods...

... of petroleum in more detail. Gas chromatograph-mass spectrometer combinations replace time-consuming separations and are applied to many petroleum fractions. Simplification of spectra by field emission source and chemical ionization techniques has opened new areas, particularly in isoparaffin analyses...

... extraction extract Eluate acetonitrile determination separation quantity spectra Venezuela non-hydrocarbon constituent benzene fraction Chromatography Abstract EXTRACTION OF METAL-PORPHYRIN COMPLEXES FROM PETROLEUM CRUDES AND DERIVATIVES Studies are reported of the extraction of metal-porphy...

... physical method spectrometer hydrocarbon correlation Cycloparaffin determination characterization Chamberlain paraffin laboratory fraction spectra concentration panel discussion Powell separation spectrometry conclusion petroleum Compound Methods for separating petroleum...

.... Prediction and control of the processing charac well logging Petroleum Fraction chain length Downstream Oil & Gas nuclear magnetic resonance hydrocarbon naphthene ring average number spectra hydrogen molecular weight spectrum aromatic ring log analysis paraffin fraction...

... theories which have been proposed, the flow assurance alkane farnesane identification production monitoring isolation mass spectra production control infrared spectra paraffin phytane Reservoir Surveillance fraction 6ab proton fraction GLC fraction resonance petroleum hydrocarbon...

... of the radioisotopes formed. From the resultant data, the composition of the samples is calculated automatically on an IBM 7090 computer. A series of gamma-ray spectra made at set time intervals after irradiation of a sample is the basis for two computing programs: The energies of peaks in the spectra...

... streams drilling data acquisition concentration mud logging / surface measurements Downstream Oil & Gas geochemical characterization distillation naphthene drilling measurement octane number calibration crude oil hydrocarbon mass spectrometer fraction spectra Chromatography...

... decomposition hydroperoxide concentration sulfonation mole hydrocarbon reaction mixture spectra Section IV - Paper 18 - PD 9 IRAN OXIDATION AND SULPHONATION OF TETRALIN, KEROSENE, AND GAS OIL H. Mina - M. Razavipaur - D. M. Rejali * Abstract. A kinetic study of the oxidation of tetralin at high...

... diffusion cut abundance mud logging / surface measurements Downstream Oil & Gas octane spectrometer bicycloparaffin heptane petroleum fraction retention time drilling measurement magnetic resonance spectrum thermal diffusion cut hydrocarbon spectra Compound spectrum infrared spectrum...

... state result from the high energy of the vacuum ultraviolet radiation, 8 to 12 electron volts. Quantum energies exceeding the characteristic ionization potential of the molecule produce positive molecular ions. The numerous strong. sharp lines of Rydberg spectra identify individual compounds. The en...

... spectrophoto- meter design have made it practical to obtain spectra in this region routinely and quickly. Much of the ab- sorption in this region is due to harmonics which are inherently better resolved than their fundamentals in the conventional infrared region. This makes it desir- able to work...

... to illustrate their advantages and limitations. The most extensive and productive applications have been concerned with molecu!e.i chemisorbed on metals supported on silica or alumina carriers. These are illustrated by the spectra of hexenes chemisorbed on nickel and by a study of the inductive effect...