Oil production by entrained pyrolysis of biomass and processing

Details Oil production by entrained pyrolysis of biomass and processing Oil production by entrained pyrolysis of biomass and processing

1986-01-17

1990-01-02

Chaudhuri, Olik

Chemistry of hydrocarbon compounds

Production of hydrocarbon mixture from refuse or vegetation

201 8, 201 37, 201 38, C07C 100, C07C 400

Patent

active

048914592

ABSTRACT:
Entrained pyrolysis of lignocellulosic material proceeds from a controlled pyrolysis-initiating temperature to completion of an oxygen free environment at atmospheric pressure and controlled residence time to provide a high yield recovery of pyrolysis oil together with char and non-condensable, combustible gases. The residence time is a function of gas flow rate and the initiating temperature is likewise a function of the gas flow rate, varying therewith. A controlled initiating temperature range of about 400.degree. C. to 550.degree. C. with corresponding gas flow rates to maximize oil yield is disclosed.

REFERENCES:
patent: 2551579 (1951-05-01), Berl
patent: 3298928 (1967-01-01), Esterer
patent: 4145256 (1979-03-01), Bowen
patent: 4266083 (1981-05-01), Huang
patent: 4313011 (1982-01-01), Weil et al.
patent: 4778585 (1988-10-01), Graff
Steinberg et al., "Flash Hydropyrolysis of Biomass", 12th Biomass Thermochem. Conv. Contract. Meeting, Mar. 1981.

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