FEASIBILITY OF ONLINE MONITORING OF THE BTU CONTENT OF NATURAL-GAS WITH A NEAR-INFRARED FIBER OPTIC-SYSTEM

被引：20

作者：

BROWN, CW ^{[1
]}

LO, SC ^{[1
]}

机构：

[1] US TOBACCO CO,NASHVILLE,TN 37203

来源：

APPLIED SPECTROSCOPY | 1993年 / 47卷 / 06期

关键词：

NEAR-INFRARED; GAS PHASE; PROCESS CONTROL; MULTICOMPONENT ANALYSIS; FIBER OPTICS;

D O I：

10.1366/0003702934066974

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Optical-fiber measurements coupled with near-infrared spectra in the range of 5500 to 10,000 cm-1 are used to determine the optimum spectral region for remotely monitoring the energy content of natural gas at above ambient pressures. The system was configured with a Fourier transform near-infrared spectrometer and a fused-silica fiber bundle. The total energy values at a pressure of 100 psi were determined by the partial least-squares (PLS) calibration algorithm. The precision and accuracy for predicting the BTU content of an industry standard gas sample were less than 0.4% in the lower-frequency region of 5700 to 6400 cm-1.

引用

页码：812 / 815

页数：4

共 15 条

[1] REMOTE NEAR-IR REFLECTANCE MEASUREMENTS WITH THE USE OF A PAIR OF OPTICAL FIBERS AND A FOURIER-TRANSFORM SPECTROMETER [J].