Patent ID: 9150488
Filing Date: 2015-10-06
Classification: C01B,C07C,C10J,C10K,Y02E,Y02P

Abstract:
1. A process for producing acrylic acid and ethanol from biomass comprising: (a) contacting said biomass with an oxidizing gas comprising oxygen and steam at a temperature of at least 550° C. and no greater than 800° C., thereby oxidizing said biomass; (b) treating at least a portion of said oxidized biomass produced in step (a) with an oxidizing gas comprising oxygen and steam to heat said oxidized biomass to a temperature which is at least 800° C. and does not exceed a maximum of 850° C.; (c) treating at least a portion of said oxidized biomass produced in step (b) with an oxidizing gas comprising oxygen and steam to heat said oxidized biomass to a temperature which is at least 900° C. and does not exceed a maximum of 1000° C., thereby producing a crude synthesis gas; (d) purifying the crude synthesis gas to provide a purified synthesis gas; (e) reacting at least a portion of the carbon monoxide from said purified synthesis gas with hydrogen from said purified synthesis gas to provide methanol; (f) reacting said methanol in the presence of a dehydration catalyst to produce dimethyl ether; (q) reacting said dimethyl ether to provide a product comprising propylene and ethylene; (h) reacting said ethylene to produce ethanol; and (i) subjecting said propylene to one or more reaction steps to produce acrylic acid.