BTEX compounds identification by means of gas sensors arrays

elimination of btex , voc vapors from glycol in gas hydrant unit

during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...

BTEX Removal from Natural Gas Streams

Temperature control of semiconductor metal-oxide gas sensors by means of fuzzy logic

The electrical conductivity of metal-oxide gas sensors depends on the gas atmosphere and on the temperature of the sensor. Temperature control systems for gas sensors were developed as a conventional PlD-controller. Problems appear in cases of hard disturbances (i.e. rough gas flows) to fix a temperature point that has its origin in the high non-linearity of the controlled system. A new concept...

Reactive Arrays of Colorimetric Sensors for Metabolite and Steroid Identification

The work described herein examines a rapid mix-and-measure method called DETECHIP suitable for screening of steroids and metabolites. The addition of steroids and metabolites to reactive arrays of colorimetric sensors generated characteristic color "fingerprints" that were used to identify the analyte. A color analysis tool was used to identify the analyte pool that now includes biologically re...

Identification of volatile organic compounds of some Trichoderma species using static headspace gas chromatography-mass spectrometry

Fungi release wide spectrum of volatile organic compounds (VOCs) that belong to several chemical groups with different biochemical origins such as monoterpenes, sesquiterpenes, alcohols, aldehydes, aromatic compounds, esters, furans, ketones, sulfur and nitrogen compounds. Trichoderma species are the most studied fungal biocontrol agents and are successfully used as biofungicides and biofertili...