Apparatus for measuring dew-point of a gas stream with light scattering

Patent · Tue Jan 17 04:00:00 EST 1989

OSTI ID:6057972

Bannell, J L.K.; Dixon, A G; Davies, T P

An apparatus is described for measuring condensible components in a gas stream, the apparatus comprising: a sensor cell which includes a pressurized chamber, a probe having a reflective surface located within the pressurized chamber, the reflective surface having a slightly roughened finish which reflects scattered light when dry and diverts directly reflected light in the presence of condensate; a means for cooling at least the surface of the probe; a depression of low angle in the surface of the probe a means for transmitting light to the surface of the probe in the pressurized chamber; a means for receiving returned light scattered from the surface of the probe which is positioned to receive scattered light, but is substantially out of alignment with the path of directly reflected light; and a means for determining the presence of condensate as a predetermined function of the reduction in scattered light intensity from the surface.

• Assignee: Shell Oil Co., Houston, TX
• Patent Number(s): US 4799235
• OSTI ID: 6057972
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
032000 -- Natural Gas-- Transport
Handling
& Storage
033000* -- Natural Gas-- Properties & Composition
CHEMICAL ANALYSIS
DEW POINT
ENERGY SOURCES
EVAPORATION
FLUID FLOW
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FLOW
GAS FUELS
GASES
LIGHT SCATTERING
MEASURING INSTRUMENTS
METERING
NATURAL GAS
PHASE TRANSFORMATIONS
PROBES
QUANTITATIVE CHEMICAL ANALYSIS
SCATTERING
TRANSPORT