Method and system for detection of hydrocarbon species in a gas
AssigneeSPX Corporation
InventorsCraig S. Rendahl, Theresa A. Foley
Life of this patent
Estimating the term…
Abstract
A method and system for measuring hydrocarbon content in a gas sample measures individual hydrocarbon concentrations in the gas sample and determines a total concentration based on the individual concentrations. The total concentration is validated and/or scaled by determining whether water interference may be occurring and either adjusting the total concentration or flagging the total concentration as invalid. The total concentration may also be adjusted to account for ambient conditions, such as temperature, pressure or relative humidity, as well as for potential double-counting of individual hydrocarbon species.
Claims22
A method of measuring hydrocarbon content in a gas, comprising:
- measuring a plurality of individual hydrocarbon concentrations in a gas sample;
- determining a total concentration based on the plurality of individual concentrations;
- identifying an occurrence of water interference in the gas sample;
- and
- determining whether the occurrence of water interference exceeds an interference level.
A system for measuring hydrocarbon content in a gas, comprising:
- an emissions sensor capable of detecting a plurality of individual hydrocarbons in a gas sample;
- a processor in communication with said emissions sensor;
- and
- a computer-readable carrier in communication with said processor, said computer-readable carrier containing program instructions that instruct the processor to perform the steps of:
- receiving data corresponding to a plurality of individual hydrocarbon concentrations in a sample;
- determining a total concentration based on the plurality of individual concentrations;
- measuring an occurrence of water interference in the gas sample;
- and
- determining whether the occurrence of water interference corresponds to an interference condition.
A system for measuring hydrocarbon content in a gas, comprising:
- a means for detecting a plurality of individual hydrocarbons in a gas sample;
- a means for determining a total concentration based on the plurality of individual concentrations;
- a means for identifying an occurrence of water interference in the gas sample;
- and
- a means for determining whether said occurrence of water interference correspond to an interference condition.
Dependencies are inferred from the claim text.