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1. WO2020102732 - BENEFICIATION OF COAL FOR STORAGE, TRANSPORTATION, AND GASIFICATION USING SUPERCRITICAL CARBON DIOXIDE

Publication Number WO/2020/102732
Publication Date 22.05.2020
International Application No. PCT/US2019/061819
International Filing Date 15.11.2019
IPC
C10L 5/04 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
5Solid fuels
02Briquettes consisting mainly of carbonaceous materials of mineral origin
04Raw material to be used; Pretreatment thereof
C10L 5/28 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
5Solid fuels
02Briquettes consisting mainly of carbonaceous materials of mineral origin
26After-treatment of the briquettes
28Heating the briquettes; Coking the binders
C10L 5/36 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
5Solid fuels
02Briquettes consisting mainly of carbonaceous materials of mineral origin
34Other details of the briquettes
36Shape
C10L 9/00 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
9Treating solid fuels to improve their combustion
C10L 9/08 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
9Treating solid fuels to improve their combustion
08by heat treatment, e.g. calcining
B01D 11/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
11Solvent extraction
02of solids
Applicants
  • TERRAPOWER, LLC [US]/[US]
Inventors
  • GOODRICH, Benjamin L.
  • KIM, Pyoungchung
  • TERRELL, Evan
  • WALTER, Joshua C.
Agents
  • BRUESS, Steven C.
Priority Data
62/768,63016.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BENEFICIATION OF COAL FOR STORAGE, TRANSPORTATION, AND GASIFICATION USING SUPERCRITICAL CARBON DIOXIDE
(FR) VALORISATION DE CHARBON POUR STOCKAGE, TRANSPORT ET GAZÉIFICATION À L'AIDE DE DIOXYDE DE CARBONE SUPERCRITIQUE
Abstract
(EN)
This document describes methods for pretreating coal to create either a dried coal or a char product that is stable in the outdoor environment and is more efficient as a feedstock for gasification or other processes than the original coal. Embodiments of the methods include pulverizing and pelletizing the coal, and pretreating the coal pellets to obtain a stable pellet of either dried coal or a stable pellet of chared coal (coal char). The pellets created by the described methods have undergone deoxygenation and carbonization improving their handling and storage properties and, in some cases, energy density. Pore structures within the pellets are stabilized physically and chemically so that the uptake of moisture into dry coal, that leads to internal heat generation, is greatly reduced. Chars are also, therefore, stable against transitions from a dry state to a wet state and less prone to self-ignition.
(FR)
Cette invention concerne des procédés pour le prétraitement de charbon pour produire soit un charbon séché soit un produit de carbonisation qui est stable dans l'environnement extérieur et qui est plus efficace en tant que charge de départ pour une gazéification ou d'autres processus que le charbon d'origine. Des modes de réalisation des procédés comprennent la pulvérisation et le pastillage du charbon et le prétraitement des pastilles de charbon pour obtenir des pastilles stables soit de charbon séché soit de charbon carbonisé (produit de carbonisation de charbon). Les pastilles produites par les procédés selon l'invention ont subi une désoxygénation et une carbonisation, ce qui améliore leurs propriétés à la manipulation et au stockage et, dans certains cas, leur densité d'énergie. Les structures poreuses à l'intérieur des pastilles sont stabilisées physiquement et chimiquement de sorte que l'absorption d'humidité dans le charbon sec, qui conduit à la production de chaleur interne, est fortement réduite. Par conséquent, les produits de carbonisation sont également stables vis-à-vis de transitions d'un état sec vers un état humide et moins sujets à la combustion spontanée.
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