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US 10,351,783 B2Granted
Processes for recovering valuable components from a catalytic fast pyrolysis process
AssigneeAnellotech, Inc.
InventorsMichael Tanzio, Charles M. Sorensen, Jr., Marc E. Schneidkraut, Jeffrey P. Whiting
Life of this patent
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Abstract
Methods of separating products from the catalytic fast pyrolysis of biomass are described. In a preferred method, a portion of the products from a pyrolysis reactor are recovered and separated using a quench system and solvent contacting system that employs materials produced in the pyrolysis process.
Claims9
A method for producing aromatic chemicals from the product stream of a catalytic pyrolysis process, comprising:
- quenching the product stream with an organic quench fluid to form a quenched product stream,
- separating a first vapor phase and a first liquid phase from the quenched product stream,
- quenching the first vapor phase with water to form a quenched first vapor phase;
- separating a second vapor phase and a second liquid phase from the quenched first vapor phase,
- recovering aromatics from the second vapor phase;
- wherein the organic quench fluid comprises materials chosen from among diesel fuel, pyrolysis oil, pygas, jet fuel, heavy cycle oils, heavy coker gas oils, heavy visbreaking distillates, heavy thermal cracking distillates clarified catalytic cracking decant oils, vacuum gas oil, intermediate and heavy vacuum distillates, naphthenic oils, heavy hydrocracker distillates, heavy distillates from hydroprocessing, naphtha, C9+ organics, oxygenates, product streams from the CFP process, benzene, toluene, xylenes, ethyl benzene, styrene, cumene, propyl benzene, indane, indene, 2-ethyl toluene, 3-ethyl toluene, 4-ethyl toluene, trimethyl benzene (e.g., 1,3,5-trimethyl benzene, 1,2,4-trimethyl benzene, 1,2,3-trimethyl benzene, etc.), ethylbenzene, styrene, cumene, methylbenzene, propylbenzene, naphthalene, methyl-naphthalene (e.g., 1-methyl naphthalene), anthracene, 9.10-dimethylanthracene, pyrene, phenanthrene, dimethyl-naphthalene (e.g., 1,5-dimethylnaphthalene, 1,6-dimethylnaphthalene, 2,5-dimethylnaphthalene, etc.), ethyl-naphthalene, hydrindene, methyl-hydrindene, dimethyl-hydrindene, phenol, o-cresol, m-cresol, p-cresol, catechol, resorcinol, hydroquinone, 1-naphthol, 2-naphthol, benzofuran, or combinations thereof.
3 more elements
Dependencies are inferred from the claim text.