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Title: Production of distillate fuels from biomass-derived polyoxygenates

Abstract

The present invention provides methods, reactor systems and catalysts for converting biomass and biomass-derived feedstocks to C.sub.8+ hydrocarbons using heterogenous catalysts. The product stream may be separated and further processed for use in chemical applications, or as a neat fuel or a blending component in jet fuel and diesel fuel, or as heavy oils for lubricant and/or fuel oil applications.

Inventors:
; ; ; ; ;
Publication Date:
Research Org.:
Virent, Inc. Madison, WI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1346978
Patent Number(s):
9,593,054
Application Number:
13/832,376
Assignee:
Virent, Inc. DOEEE
DOE Contract Number:
EE0005006
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Mar 15
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS

Citation Formats

Kania, John, Blommel, Paul, Woods, Elizabeth, Dally, Brice, Lyman, Warren, and Cortright, Randy. Production of distillate fuels from biomass-derived polyoxygenates. United States: N. p., 2017. Web.
Kania, John, Blommel, Paul, Woods, Elizabeth, Dally, Brice, Lyman, Warren, & Cortright, Randy. Production of distillate fuels from biomass-derived polyoxygenates. United States.
Kania, John, Blommel, Paul, Woods, Elizabeth, Dally, Brice, Lyman, Warren, and Cortright, Randy. Tue . "Production of distillate fuels from biomass-derived polyoxygenates". United States. doi:. https://www.osti.gov/servlets/purl/1346978.
@article{osti_1346978,
title = {Production of distillate fuels from biomass-derived polyoxygenates},
author = {Kania, John and Blommel, Paul and Woods, Elizabeth and Dally, Brice and Lyman, Warren and Cortright, Randy},
abstractNote = {The present invention provides methods, reactor systems and catalysts for converting biomass and biomass-derived feedstocks to C.sub.8+ hydrocarbons using heterogenous catalysts. The product stream may be separated and further processed for use in chemical applications, or as a neat fuel or a blending component in jet fuel and diesel fuel, or as heavy oils for lubricant and/or fuel oil applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 14 00:00:00 EDT 2017},
month = {Tue Mar 14 00:00:00 EDT 2017}
}

Patent:

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  • This paper presents a comparative techno-economic analysis (TEA) of five conversion pathways from biomass to gasoline-, jet-, and diesel-range hydrocarbons via indirect liquefaction with specific focus on pathways utilizing oxygenated intermediates. The four emerging pathways of interest are compared with one conventional pathway (Fischer-Tropsch) for the production of the hydrocarbon blendstocks. The processing steps of the four emerging pathways include: biomass to syngas via indirect gasification, gas cleanup, conversion of syngas to alcohols/oxygenates followed by conversion of alcohols/oxygenates to hydrocarbon blendstocks via dehydration, oligomerization, and hydrogenation. Conversion of biomass-derived syngas to oxygenated intermediates occurs via three different pathways, producing: 1)more » mixed alcohols over a MoS2 catalyst, 2) mixed oxygenates (a mixture of C2+ oxygenated compounds, predominantly ethanol, acetic acid, acetaldehyde, ethyl acetate) using an Rh-based catalyst, and 3) ethanol from syngas fermentation. This is followed by the conversion of oxygenates/alcohols to fuel-range olefins in two approaches: 1) mixed alcohols/ethanol to 1-butanol rich mixture via Guerbet reaction, followed by alcohol dehydration, oligomerization, and hydrogenation, and 2) mixed oxygenates/ethanol to isobutene rich mixture and followed by oligomerization and hydrogenation. The design features a processing capacity of 2,000 tonnes/day (2,205 short tons) of dry biomass. The minimum fuel selling prices (MFSPs) for the four developing pathways range from $3.40 to $5.04 per gasoline-gallon equivalent (GGE), in 2011 US dollars. Sensitivity studies show that MFSPs can be improved with co-product credits and are comparable to the commercial Fischer-Tropsch benchmark ($3.58/GGE). Overall, this comparative TEA study documents potential economics for the developmental biofuel pathways via mixed oxygenates.« less
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  • A process and a product of the process for preparing a pitch suitable for carbon artifact manufacture features a pitch having a weight content of between 80 and 100 percent toluene insolubles. The pitch is derived from a substantially deasphaltenated middle fraction of a feedstock, such as a coal distillate. The middle fraction is rich in 3, 4, 5 and 6 polycondensed aromatic rings. The pitch is characterized as being relatively free of impurities and ash.
  • This patent describes a process for the co-production of high quality gasoline and distillate products from catalytically cracked feedstocks. It comprises: hydrocracking a substantially dealkylated feedstock with a hydrocracking catalyst at a hydrogen partial pressure not greater than 1200 psig and a conversion to gasoline boiling range products not more than 75 wt. percent; separating the products of hydrocracking into a gasoline boiling range fraction, a first distillate range fraction boiling immediately above the gasoline fraction with an end point in the range of 450{degrees} to 500{degrees} F. and a second distillate fraction boiling above the first distillate fraction; recyclingmore » at least a portion of the first distillate fraction to the hydrocracking step to effect saturation and partial cracking of aromatics in the recycled fraction to increase the paraffin content of the second distillate fraction; recovering the second distillate fraction.« less