Express Analysis of Natural Gas and Gas Mixtures Using a Portable Raman Spectrometer Coupled to a Hollow Photon-Crystal Light Guide

2021 ◽  
Vol 85 (2) ◽  
pp. 169-173
Author(s):  
M. N. Khannanov ◽  
V. E. Kirpichev
Keyword(s):  
Natural Gas ◽  
Light Guide ◽  
Gas Mixtures ◽  
Photon Crystal ◽  
Raman Spectrometer ◽  
Express Analysis ◽  
Portable Raman

Application of Continuous Thermodynamics to Natural-Gas Mixtures

1990 ◽  
Vol 45 (5) ◽  
pp. 633-643 ◽  
Author(s):  
J. M. Prausnitz ◽  
R. L. Cotterman
Keyword(s):  
Natural Gas ◽  
Gas Mixtures

Characterisation of a portable Raman spectrometer for in situ analysis of art objects

2014 ◽  
Vol 118 ◽  
pp. 294-301 ◽  
Author(s):  
Debbie Lauwers ◽  
Anna Garcia Hutado ◽  
Vinka Tanevska ◽  
Luc Moens ◽  
Danilo Bersani ◽  
...  
Keyword(s):  
In Situ Analysis ◽  
Raman Spectrometer ◽  
Art Objects ◽  
Portable Raman

Rapid detection of gasoline by a portable Raman spectrometer and chemometrics

2012 ◽  
Vol 43 (10) ◽  
pp. 1487-1491 ◽  
Author(s):  
Xiaofang Zhang ◽  
Xiaohua Qi ◽  
Mingqiang Zou ◽  
Jingwei Wu
Keyword(s):  
Rapid Detection ◽  
Raman Spectrometer ◽  
Portable Raman

Composition of Mixtures of Natural Gas Components Determined by Raman Spectrometry

1980 ◽  
Vol 34 (4) ◽  
pp. 411-414 ◽  
Author(s):  
Dwain E. Diller ◽  
Ren Fang Chang
Keyword(s):  
Natural Gas ◽  
Mole Fraction ◽  
Gas Mixtures ◽  
Spectrometric Method ◽  
Gas Mixture ◽  
Raman Intensity ◽  
Raman Spectrometry ◽  
Intensity Measurements ◽  
Hydrocarbon Gas ◽  
Related Line

The feasibility of using Raman spectrometry for determining the composition of mixtures of natural gas components was examined. Raman intensity measurements were carried out on eight, gravimetrically prepared, binary gas mixtures containing methane, nitrogen, and isobutane at ambient temperature and at pressures to 0.8 MPa. The repeatability of the molar intensity ratio, ( I2/ y2)/( I1/ y1), where y1 is the concentration of component 1 in the mixture, and I1 is the intensity of the related line in the mixture spectrum, was examined. The compositions of two gravimetrically prepared methane-nitrogen-isobutane gas mixtures were determined spectrometrically with an estimated precision of about 0.001 in the mole fraction. Typical differences from the gravimetric concentrations were less than 0.002 in the mole fraction. The Raman spectrum of a gravimetrically prepared, eight component, hydrocarbon gas mixture was obtained to show that the Raman spectrometric method has potential for being applicable to natural gas type mixtures.

Capturing the Effects of NOX and SOX Impurities on Oxy-Combustion Under Supercritical CO2 Conditions for Coal-Derived Syngas and Natural Gas Mixtures

2021 ◽  
Author(s):  
Ramees K Rahman ◽  
K R v (Raghu) Manikantachari ◽  
Samuel Barak ◽  
Erik Ninnemann ◽  
Ashvin Hosangadi ◽  
...  
Keyword(s):  
Natural Gas ◽  
Supercritical Co2 ◽  
Gas Mixtures

Rapid and Simple Analysis of the Human Pepsin Secondary Structure Using a Portable Raman Spectrometer

2021 ◽  
Author(s):  
Tong-Jiang Li ◽  
Bao-Ying Wen ◽  
Xiao-Hui Ma ◽  
Wan-Ting Huang ◽  
Jin-Zhun Wu ◽  
...  
Keyword(s):  
Secondary Structure ◽  
Simple Analysis ◽  
Raman Spectrometer ◽  
Portable Raman
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