US 10,207,236 B2Granted

Gas decomposition reactor feedback control using raman spectrometry

AssigneeCorner Star Limited

InventorsAlexis Grabbe, Pramatha Payra

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Abstract

A gas decomposition reactor for the decomposition of a gas into a mixture of solid and gaseous by-products is disclosed. The gas decomposition reactor includes a reactor vessel, a Raman spectrometer, and a processor. The reactor vessel has an inlet for receiving inlet gas and an exhaust outlet for releasing exhaust gas. The Raman spectrometer is connected with the exhaust outlet for determining a chemical conversion within the reactor chamber and generating a corresponding signal. The processor is connected with the Raman spectrometer to receive the signal from the Raman spectrometer. The processor is capable of comparing the signal with a set of values and calculating differences between the signal and the set of values. The processor is connected with the inlet to regulate a flow of the inlet gas.

Claims14

Dependent claims

A method of operating a gas decomposition reactor having an inlet and an exhaust outlet, the method comprising:

continuously measuring a chemical composition of an exhaust gas located within the exhaust outlet using Raman spectra and generating a corresponding exhaust signal, wherein at least two components of the exhaust gas are detected simultaneously;
continuously measuring a chemical composition of an inlet gas located within the inlet using Raman spectra and generating a corresponding inlet signal;
comparing the measured chemical composition of the exhaust gas to the measured chemical composition of the inlet gas to ratiometrically determine a conversion efficiency of a reaction in the gas decomposition reactor based at least in part on the inlet signal and the exhaust signal;
and
adjusting a flow of an inlet gas through the inlet based at least in part on the determined conversion efficiency to change a subsequently measured chemical composition of a subsequent exhaust gas located within the gas outlet.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/044,734Filed 16 Feb 2016 · continuation
Priority: 14 Mar 2013
Published: US 2016/0158721 A19 Jun 2016
Granted: 19 Feb 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification27 codes

B01J 8/1809
With fluidised particles: controlling processes
B01J 8/1818
With fluidised particles: feeding of the fluidising gas
B01J 8/1827
Feeding of the fluidising gas: the fluidising gas being a reactant
B01J 19/0033
Controlling or regulating processes: optimalisation processes, i.e. processes with adaptive control systems

Family

Application13/830,514Parent of this continuation · filed 14 Mar 2013
US 2016/0158721 A1Pre-grant publication · published 9 Jun 2016
US 9,297,765 B2Parent of this continuation
US 2014/0271372 A1Published application
US 10,207,236 B2This patent

From the US filing history. Foreign family members aren’t listed.