Patent ID: 7293388

Claim:
A system for generating a carbon dioxide attractant, said system comprising: a combustion chamber in which carbon dioxide is generated by means of an exothermic reaction from a gaseous fuel rich in carbon, said carbon dioxide being provided to an output flow area; a supply line providing a supply of said fuel to said combustion chamber; a valve disposed in said supply line; means for sensing a reactor temperature in said combustion chamber and for generating a control signal representative of said reactor temperature; and a controller for adjusting selected segments of successive equal time intervals during which said valve is open responsive to: a proportional term that is proportional to a difference between a reference temperature and the reactor temperature; an integral term that is proportional to a time integral of the difference between the reference temperature and the reactor temperature; and a derivative term that is proportional to a time derivative of the difference between the reference temperature and the reactor temperature.