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Process Optimization

Applications of laser-based sensors for process optimization

Gas Detection in Process Optimization

Nanoplus Lasers in Process Optimization
NOx
Emission control: NOx

NH3 is added in combustion processes to reduce emissions of the flue gas NOx. The two compounds will react to uncritical N2 and H2O. To avoid any corrosive or environmental effects from overuse, the gas volume needs to be continuously monitored.

[ 117 , 116 , 72 , 3 ]
O2
Power maximization of hypersonic aircraft engines: O2

The maximum power, fuel efficiency and stability of hypersonic aircraft engines depend on the captured air volume. Monitoring the oxygen concentration and velocity are important measures to define the airflow.

O2 and CO
Combustion control in high temperature processes: O2 and CO

Oxygen control enhances process and cost efficiency of incinerators. Oxidation requires excess air. But too much air cools down the combustion and increases the amount of CO in the flue gas. Real-time and in situ monitoring helps to optimize the oxygen content in combustion processes.

[ 157 , 154 , 3 ]
H2O
Combustion control in high temperature processes: H2O

Water vapour is often examined in combustion and propulsion processes as it is a primary product of hydrogen and hydrocarbon fuels.

[ 154 , 153 , 121 , 120 , 70 , 65 , 28 , 17 , 16 , 15 ]
CO
Combustion control in high temperature processes: CO

­­CO is a major element in high temperature processes. Optimizing CO concentration in flue gas increases combustion efficiency. Simultaneously, it reduces greenhouse gas emissions. CO detection at long wavelengths like 2.8 μm  and 4.3 μm uses stronger vibrational absorption features than the shorter wavelength ranges. This effect increases the sensitivity of the detector and allows using measurement set ups with short path lengths. 

[ 157 , 154 , 124 , 110 , 48 , 35 , 12 , 3 ]
CH4
Combustion control in integrated gasification fuel cell cycles: CH4

Methane content of syngas is controlled to improve combustion efficiency of integrated gasification fuel cell cycles.

[ 35 ]
CO2 and CH4
Combustion control in high temperature processes: CO2 and CH4

Continuous monitoring of contents like CO2 or CH4 concentrations is essential for the efficiency of high-temperature processes in e. g. incinerators, furnaces or petrochemical refineries. Managing the CO2 content in combustion processes simultaneously reduces greenhouse gas emissions. This is also relevant for energy generating industries like coal burning power plants.

[ 154 , 124 , 121 , 115 , 112 , 111 , 96 , 94 , 62 , 45 , 40 , 35 , 12 ]