Superheated low-pollution combustion of the gaseous products of

Details Superheated low-pollution combustion of the gaseous products of Superheated low-pollution combustion of the gaseous products of

1994-02-17

1995-09-12

Jones, W. Gary

Distillation: processes, thermolytic

Using a carbonization product as indirect heat source

For heating the carbonaceous material

201 27, 201 29, 202 87, 202109, 431 5, 431 11, 431354, C10B 5100

Patent

active

054494397

ABSTRACT:
Combustible off-gas(es) produced by the process of pyrolysis are superheated; and a pressurized gaseous mixture including oxygen, normally compressed air, is preheated; before, and by, a burning of the combustible off-gas(es) produced by process of pyrolysis in the presence of stoichiometric oxygen. The burning transpires in a large number of relatively small burner cups having bulbously-shaped and exhaust-constricted combustion chambers. The burner cups are both individually, and collectively, adjustable in their uptake of combustible gases by adjusting the flow of compressed air. The combustion in each burner cup is very complete and efficient nonetheless to having increased area contact with the chamber wall, and nonetheless to the rapidly and turbulent flow of gases, because everything contributing to or touching the combustion reaction is optimally hot, and because the shape of the burner cups holds the combustion optimally long. An optional control system monitors each of the temperature and the vacuum/pressure of the retort within which pyrolysis transpires so as to hold constant the conditions for optimum pyrolysis, feeding carbonaceous material to the retort faster when the temperature drops while simultaneously increasing the flow of compressed air to the many burner cups.

REFERENCES:
patent: 765027 (1904-07-01), Matheson
patent: 4122036 (1978-10-01), Lewis
patent: 4235675 (1980-11-01), Bechthold
patent: 5302254 (1994-04-01), Martin et al.

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