초록 ▼

A lignin-containing feed material in particulate form is mixed with a process-derived slurrying oil and fed into an ebullated catalyst bed hydrocracking reactor. Reaction conditions are maintained at 650°-850°F. temperature, 500-2500 psig hydrogen partial pressure and space velocity of 1.0-10 wt. li

A lignin-containing feed material in particulate form is mixed with a process-derived slurrying oil and fed into an ebullated catalyst bed hydrocracking reactor. Reaction conditions are maintained at 650°-850°F. temperature, 500-2500 psig hydrogen partial pressure and space velocity of 1.0-10 wt. lignin/hr./wt. catalyst. The reaction products are phase separated to recover hydrogen and slurrying oil, and the resulting liquid stream is passed to a thermal hydrodealkylation step. The reacted stream is fractionated to produce phenol and benzene products, along with a heavy alkylated material which is recycled to the hydrodealkylation step to increase the yield of phenol and benzene.

대표청구항 ▼

A process for hydrocracking lignin-containing feed materials to produce mono-aromatic phenolic products, comprising: (a) mixing the lignin-containing feed with sufficient process-derived slurrying oil to provide a pumpable slurry mixture; (b) feeding the lignin and oil slurry with hydrogen into a hy

A process for hydrocracking lignin-containing feed materials to produce mono-aromatic phenolic products, comprising: (a) mixing the lignin-containing feed with sufficient process-derived slurrying oil to provide a pumpable slurry mixture; (b) feeding the lignin and oil slurry with hydrogen into a hydrocracking reaction zone containing an ebullated bed of particulate catalyst; (c) maintaining said catalytic reaction zone at temperature within range of 650°-850°F., hydrogen partial pressure of 500-2500 psig, and space velocity within the range of 0.1-10 wt./hr./wt. catalyst; (d) phase separating the reaction zone effluent stream to recover a hydrogen-containing gas stream and aromatic oils having normal boiling range of 500°-900°F. as said slurrying oil; and (e) withdrawing a mono-aromatic liquid product stream boiling below about 500°F. and containing at least about 25 W % phenolic product.