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Hydrocarbon Analyzers
Published in Béla G. Lipták, Analytical Instrumentation, 2018
The hydrocarbon dew point of natural gas is that temperature at which the first significant amounts of condensate are formed on a chilled surface. A chilled-mirror instrument of the “dark spot” design can be used for this measurement (Figure 24f). With this technique almost invisible films, having sensitivities on the order of 1 ppm, become detectable. In this instrument, the optical surface is provided with a V-shaped depression. When the surface is dry, the reflection from it results in a dark spot (as shown in Figure 24f). As hydrocarbon condenses on this surface, the scattered light intensity in the dark spot region is reduced. Optical fibers are used to detect this reduction of intensity, while miniature thermocouples measure the surface temperature of the mirror.
Biofuels Characterization and Standard Methods for Quality Control
Published in M.R. Riazi, David Chiaramonti, Biofuels Production and Processing Technology, 2017
Martino Di Serio, Rosa Turco, Rosa Vitiello, Riccardo Tesser, M.R. Riazi, David Chiaramonti
Hydrocarbon dew point indicates the temperature at which heavy hydrocarbon components begin to condense out of the gaseous phase, when the gas is cooled at constant pressure and a higher hydrocarbon dew point usually indicates a higher proportion of heavy hydrocarbon components.
Technical, economic, and environmental assessment of flare gas recovery system: a case study
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Seyed Morteza Mousavi, Kamran Lari, Gholamreza Salehi, Masoud Torabi Azad
Total daily gas produced is 44.9 MMSCMD and gas consumption in furnaces is 29.9 MSCMD and in this situation, the quantity of flaring gas is about 4.5 MMSCFD. The gas extracted from the fields enters the gas refinery for processing. The refinery includes finger type clusters for separation of gas from liquid, two-phase and three-phase separators, six distillation units of gas with tri-ethylene glycol, a hydrocarbon dew point depression unit, a condensate stabilization unit, a storage tank, a station loading fluid, pig launcher, receiver systems, and condensate pumps, which are shown in Figure 1.