Attrition reactor system

Scott, Charles D; Davison, Brian H

Title: Attrition reactor system

Abstract

A reactor vessel for reacting a solid particulate with a liquid reactant has a centrifugal pump in circulatory flow communication with the reactor vessel for providing particulate attrition, resulting in additional fresh surface where the reaction can occur.

Inventors:

Scott, Charles D ^[1]; Davison, Brian H ^[2]

Oak Ridge, TN
Knoxvile, TN

Issue Date:: 1993-01-01

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 868938

Patent Number(s):: 5248484

Assignee:: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

Show more

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J19/1881 - {externally, i.e. the mixture leaving the vessel and subsequently re-entering it}

Show less

DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: attrition; reactor; vessel; reacting; solid; particulate; liquid; reactant; centrifugal; pump; circulatory; flow; communication; providing; resulting; additional; fresh; surface; reaction; occur; solid particulate; reactor vessel; flow communication; liquid reactant; centrifugal pump; circulatory flow; /422/241/

Citation Formats


                    Scott, Charles D, and Davison, Brian H. Attrition reactor system.  United States: N. p., 1993. 
        Web.

Copy to clipboard


                    Scott, Charles D, & Davison, Brian H. Attrition reactor system.  United States.

Copy to clipboard


                    Scott, Charles D, and Davison, Brian H. Fri .  
        "Attrition reactor system".  United States.  https://www.osti.gov/servlets/purl/868938.

Copy to clipboard


                    
@article{osti_868938,

  title        = {Attrition reactor system},

  author       = {Scott, Charles D and Davison, Brian H},

  abstractNote = {A reactor vessel for reacting a solid particulate with a liquid reactant has a centrifugal pump in circulatory flow communication with the reactor vessel for providing particulate attrition, resulting in additional fresh surface where the reaction can occur.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1993},

  month        = {1}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Bioconversion of waste cellulose by using an attrition bioreactor
journal, January 1983

Ryu, S. K.; Lee, J. M.
Biotechnology and Bioengineering, Vol. 25, Issue 1
https://doi.org/10.1002/bit.260250106

Kinetic analysis of bioconversion of cellulose in attrition bioreactor
journal, January 1988

Jones, Evan O.; Lee, James M.
Biotechnology and Bioengineering, Vol. 31, Issue 1
https://doi.org/10.1002/bit.260310106

Enhancement of enzymatic hydrolysis by simultaneous attrition of cellulosic substrates
journal, February 1982

Neilson, Martin J.; Kelsey, Rick G.; Shafizadeh, Fred
Biotechnology and Bioengineering, Vol. 24, Issue 2
https://doi.org/10.1002/bit.260240204

Similar Records in DOE Patents and OSTI.GOV collections:

Reducing fischer-tropsch catalyst attrition losses in high agitation reaction systems

Patent Singleton, Alan H [Baden, PA]; Oukaci, Rachid [Gibsonia, PA]; Goodwin, James G [Cranberry Township, PA]

A method for reducing catalyst attrition losses in hydrocarbon synthesis processes conducted in high agitation reaction systems; a method of producing an attrition-resistant catalyst; a catalyst produced by such method; a method of producing an attrition-resistant catalyst support; and a catalyst support produced by such method. The inventive method of reducing catalyst attrition losses comprises the step of reacting a synthesis gas in a high agitation reaction system in the presence of a catalyst. In one aspect, the catalyst preferably comprises a .gamma.-alumina support including an amount of titanium effective for increasing the attrition resistance of the catalyst. In anothermore » « less
Full Text Available
Attrition resistant fluidizable reforming catalyst

Patent Parent, Yves O [Golden, CO]; Magrini, Kim [Golden, CO]; Landin, Steven M [Conifer, CO]; ...

A method of preparing a steam reforming catalyst characterized by improved resistance to attrition loss when used for cracking, reforming, water gas shift and gasification reactions on feedstock in a fluidized bed reactor, comprising: fabricating the ceramic support particle, coating a ceramic support by adding an aqueous solution of a precursor salt of a metal selected from the group consisting of Ni, Pt, Pd, Ru, Rh, Cr, Co, Mn, Mg, K, La and Fe and mixtures thereof to the ceramic support and calcining the coated ceramic in air to convert the metal salts to metal oxides.
Full Text Available
Attrition resistant catalysts and sorbents based on heavy metal poisoned FCC catalysts

Patent Gangwal, Santosh [Cary, NC]; Jothimurugesan, Kandaswamy [Hampton, VA]

A heavy metal poisoned, spent FCC catalyst is treated by chemically impregnating the poisoned catalyst with a new catalytic metal or metal salt to provide an attrition resistant catalyst or sorbent for a different catalytic or absorption processes, such as catalysts for Fischer-Tropsh Synthesis, and sorbents for removal of sulfur gasses from fuel gases and flue-gases. The heavy metal contaminated FCC catalyst is directly used as a support for preparing catalysts having new catalytic properties and sorbents having new sorbent properties, without removing or "passivating" the heavy metals on the spent FCC catalyst as an intermediate step.
Full Text Available
Enhanced attrition bioreactor for enzyme hydrolysis of cellulosic materials

Patent Scott, Timothy C [Knoxville, TN]; Scott, Charles D [Oak Ridge, TN]; Faison, Brendlyn D [Knoxville, TN]; ...

A process for converting cellulosic materials, such as waste paper, into fuels and chemicals, such as sugars and ethanol, utilizing enzymatic hydrolysis of the major carbohydrate of paper: cellulose. A waste paper slurry is contacted by cellulase in an agitated hydrolyzer. An attritor and a cellobiase reactor are coupled to the agitated hydrolyzer to improve reaction efficiency. Additionally, microfiltration, ultrafiltration and reverse osmosis steps are included to further increase reaction efficiency. The resulting sugars are converted to a dilute product in a fluidized-bed bioreactor utilizing a biocatalyst, such as microorganisms. The dilute product is then concentrated and purified.
Full Text Available
Attrition resistant bulk iron catalysts and processes for preparing and using same

Patent Jothimurugesan, Kandaswamy [Ponca City, OK]; Goodwin, Jr., James G. (Clemson, SC); Gangwal, Santosh K [Cary, NC]

An attrition resistant precipitated bulk iron catalyst is prepared from iron oxide precursor and a binder by spray drying. The catalysts are preferably used in carbon monoxide hydrogenation processes such as Fischer-Tropsch synthesis. These catalysts are suitable for use in fluidized-bed reactors, transport reactors and, especially, slurry bubble column reactors.
Full Text Available

Similar Records

Title: Attrition reactor system

Abstract

Citation Formats

Bioconversion of waste cellulose by using an attrition bioreactor journal, January 1983

Kinetic analysis of bioconversion of cellulose in attrition bioreactor journal, January 1988

Enhancement of enzymatic hydrolysis by simultaneous attrition of cellulosic substrates journal, February 1982

Bioconversion of waste cellulose by using an attrition bioreactor
journal, January 1983

Kinetic analysis of bioconversion of cellulose in attrition bioreactor
journal, January 1988

Enhancement of enzymatic hydrolysis by simultaneous attrition of cellulosic substrates
journal, February 1982