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Title: Thermal swing reactor including a multi-flight auger

Abstract

A thermal swing reactor including a multi-flight auger and methods for solar thermochemical reactions are disclosed. The reactor includes a multi-flight auger having different helix portions having different pitch. Embodiments of reactors include at least two distinct reactor portions between which there is at least a pressure differential. In embodiments, reactive particles are exchanged between portions during a reaction cycle to thermally reduce the particles at first conditions and oxidize the particles at second conditions to produce chemical work from heat.

Inventors:
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1346072
Patent Number(s):
9,586,190
Application Number:
14/278,350
Assignee:
Sandia Corporation SNL-A
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 May 15
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 42 ENGINEERING

Citation Formats

Ermanoski, Ivan. Thermal swing reactor including a multi-flight auger. United States: N. p., 2017. Web.
Ermanoski, Ivan. Thermal swing reactor including a multi-flight auger. United States.
Ermanoski, Ivan. Tue . "Thermal swing reactor including a multi-flight auger". United States. doi:. https://www.osti.gov/servlets/purl/1346072.
@article{osti_1346072,
title = {Thermal swing reactor including a multi-flight auger},
author = {Ermanoski, Ivan},
abstractNote = {A thermal swing reactor including a multi-flight auger and methods for solar thermochemical reactions are disclosed. The reactor includes a multi-flight auger having different helix portions having different pitch. Embodiments of reactors include at least two distinct reactor portions between which there is at least a pressure differential. In embodiments, reactive particles are exchanged between portions during a reaction cycle to thermally reduce the particles at first conditions and oxidize the particles at second conditions to produce chemical work from heat.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 07 00:00:00 EST 2017},
month = {Tue Mar 07 00:00:00 EST 2017}
}

Patent:

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  • The present invention provides compact adsorption systems that are capable of rapid temperature swings and rapid cycling. Novel methods of thermal swing adsorption and thermally-enhanced pressure swing adsorption are also described. In some aspects of the invention, a gas is passed through the adsorbent thus allowing heat exchangers to be very close to all portions of the adsorbent and utilize less space. In another aspect, the adsorption media is selectively heated, thus reducing energy costs. Methods and systems for gas adsorption/desorption having improved energy efficiency with capability of short cycle times are also described. Advantages of the invention include themore » ability to use (typically) 30-100 times less adsorbent compared to conventional systems.« less
  • The present invention provides compact adsorption systems that are capable of rapid temperature swings and rapid cycling. Novel methods of thermal swing adsorption and thermally-enhanced pressure swing adsorption are also described. In some aspects of the invention, a gas is passed through the adsorbent thus allowing heat exchangers to be very close to all portions of the adsorbent and utilize less space. In another aspect, the adsorption media is selectively heated, thus reducing energy costs. Methods and systems for gas adsorption/desorption having improved energy efficiency with capability of short cycle times are also described. In another aspect, the apparatus ormore » methods utilize heat exchange channels of varying lengths that have volumes controlled to provide equal heat fluxes. Methods of fuel cell startup are also described. Advantages of the invention include the ability to use (typically) 30-100 times less adsorbent compared to conventional systems.« less
  • The present invention provides compact adsorption systems that are capable of rapid temperature swings and rapid cycling. Novel methods of thermal swing adsorption and thermally-enhanced pressure swing adsorption are also described. In some aspects of the invention, a gas is passed through the adsorbent thus allowing heat exchangers to be very close to all portions of the adsorbent and utilize less space. In another aspect, the adsorption media is selectively heated, thus reducing energy costs. Methods and systems for gas adsorption/desorption having improved energy efficiency with capability of short cycle times are also described. Advantages of the invention include themore » ability to use (typically) 30-100 times less adsorbent compared to conventional systems.« less
  • This patent describes a hydrocarbon conversion process. It comprises: passing a reactor feed; passing at least a portion of the reactor product through a first adsorption zone; passing the first adsorption effluent stream through a second adsorption zone containing solid adsorbent heating at least a substantial portion of the second adsorption effluent to a temperature sufficient to desorb at least a portion of C{sub 6} + hydrocarbon fraction, reducing the pressure in the second adsorption zone to a pressure sufficient to desorb at least a portion of C{sub 1}--C{sub 5} hydrocarbon fraction; passing a portion of the first desorption effluentmore » stream to the reaction zone to comprise the recycle stream.« less