• Aucun résultat trouvé

The mineral carbonation process: Who can use it and why.

N/A
N/A
Protected

Academic year: 2021

Partager "The mineral carbonation process: Who can use it and why."

Copied!
1
0
0

Texte intégral

(1)

The Mineral Carbonation Process: who can use it and why?

The Mineral Carbonation Process: who can use it and why?

E. Cecchi, INRS

E. Cecchi, INRS

-

-

ETE; G. Mercier, INRS

ETE; G. Mercier, INRS

-

-

ETE; J.F. Blais, INRS

ETE; J.F. Blais, INRS

-

-

ETE;

ETE;

S. Kentish, University of Melbourne; I. Gates, University of Calgary

S. Kentish, University of Melbourne; I. Gates, University of Calgary

Project:

Project:

Carbonate production by sequestration of industrial CO

Carbonate production by sequestration of industrial CO

22

: revalorization of mine and industrial waste

: revalorization of mine and industrial waste

In industry...

In industry...

The process use gaseous effluents and as such : The process use gaseous effluents and as such :

no need of a pre

no need of a pre--concentration or capture stepconcentration or capture step no need of 100% CO

no need of 100% CO22 gas or high pressuregas or high pressure

possible with a mixture of CO

possible with a mixture of CO22 (up to 30%), H(up to 30%), H22O, NO, N22, ,

NOx, SOx... NOx, SOx...

At least 80 % of the COAt least 80 % of the CO22 emissions is stored at low emissions is stored at low

cost. cost.

The process would be applicable to large CO

The process would be applicable to large CO22 emitters like in the steel, emitters like in the steel,

aluminum, copper, cement and petroleum industries... aluminum, copper, cement and petroleum industries...

The Mineral Carbonation Process: useful?

The Mineral Carbonation Process: useful?

In a reactor

In a reactor

CO

CO22 bearing gas mixture + ground mine/industrial wastes bearing gas mixture + ground mine/industrial wastes

Favorable conditions

Favorable conditions ≈ ≈ 80%80% COCO22 capture capture CarbonatesCarbonates

Mineral Carbonation: what is it?

Mineral Carbonation: what is it?

Efficient but slow kinetics in nature

Efficient but slow kinetics in nature

Solution? Solution?

Solution?

Accelerating the reaction rateAccelerating the reaction rate How?How?

How?

Various paths: dry carbonation, aqueous carbonation Various paths: dry carbonation, aqueous carbonation

Optimizing the reaction parameters Optimizing the reaction parameters

Working with various materials (wastes, rocks and minerals) Working with various materials (wastes, rocks and minerals)

Enhancing the reactivity of the material Enhancing the reactivity of the material

A Natural Process

A Natural Process

The CO

The CO22 from the atmosphere reacts with rocks and mineralsfrom the atmosphere reacts with rocks and minerals

This reaction gives another solid: stable, inert, non

This reaction gives another solid: stable, inert, non--toxictoxic

Perfect form to permanently and safely sequester CO Perfect form to permanently and safely sequester CO22

400 µm 400 µm Carbonates Carbonates Carbonation Carbonation Carbonation Grinding Grinding Grinding Anorthosite tailings Serpentinite tailings Waste concrete Waste concrete CO

CO22bearing gas mixture bearing gas mixture

Challenges

Challenges

Convincing the companies of the efficiency of the process. Convincing the companies of the efficiency of the process. This comes with:

This comes with:

Scaling up of the process on site Scaling up of the process on site

Installing the pilot plant on an industrial site Installing the pilot plant on an industrial site

Having the material close to industrial sites/major GHG emitters: Having the material close to industrial sites/major GHG emitters:

Various materials tested : wider possibilities (sandstone, granite, Various materials tested : wider possibilities (sandstone, granite,

basalt, peridotite, etc.)basalt, peridotite, etc.) Acceptance from the public Acceptance from the public

Is it that easy?

Is it that easy?

Industries

Industries

Steel, tubing and alloy plants Steel, tubing and alloy plants

Cement, aggregate and ready mix Cement, aggregate and ready mix plants

plants

Oil refineries, petrochemical Oil refineries, petrochemical pro-ducers and plastic manufacturers...

ducers and plastic manufacturers...

Localization

Localization: Calgary, Edmonton, Red : Calgary, Edmonton, Red Deer, Sylvan Lake, Fort McMurray,

Deer, Sylvan Lake, Fort McMurray, Scotford...

Scotford...

Materials available:

Materials available:

Kimberlite (See map) Kimberlite (See map)

Mafic sills and lava (Southern Mafic sills and lava (Southern Al-berta Rockies)

berta Rockies)

Mafic rocks (NE Alberta) Mafic rocks (NE Alberta)

Waste concrete and aggregates Waste concrete and aggregates (Airdrie, Mountain View<)

(Airdrie, Mountain View<)

And possibly sandstone, granite... And possibly sandstone, granite...

And waste management

And waste management

Industrial wasteIndustrial wasteIndustrial waste

Use of industrial residue: Use of industrial residue:

Decrease amount of discharge Decrease amount of discharge

Decrease sizes of disposal site Decrease sizes of disposal site

Revalorization and added Revalorization and added

valuevalue

Feed examples Feed examples::

Waste concrete and cement, various Waste concrete and cement, various

bricks and granulates, etc. bricks and granulates, etc. Mine wasteMine wasteMine waste

Use of tailings: Use of tailings:

Decrease size of dump Decrease size of dump

Revalorization and added Revalorization and added value to an otherwise waste value to an otherwise waste

material material Feed examples Feed examples::

Chromite, ilmenite, talc, soap stone, Chromite, ilmenite, talc, soap stone,

nickel exploitations tailings, etc. nickel exploitations tailings, etc.

Conclusion

Conclusion

From EUB/AGS, ags.gov.ab.ca and energy.alberta.ca maps Ath ab asc a O il sa nds and Ath ab asc a O il sa nds and Ath ab asc a O il sa nds and oth ers. oth ers. oth ers. Some of th e ma jor sh ale g as es p rosp ectiv e zon e Some of th e ma jor sh ale g as es p rosp ectiv e zon e Some of th e ma jor sh ale g as es p rosp ectiv e zon e Serpentinite MgCO3 Anorthosite CaCO3 O C O Example of Mg

Example of Mg--bearing bearing rock :

rock : serpentiniteserpentinite

Example of Ca

Example of Ca--bearing bearing rock :

rock : anorthositeanorthosite

Magnesium carbonate: Magnesium carbonate: Magnesite Magnesite Calcium carbonate: Calcium carbonate: Calcite Calcite

Applicability to Alberta

Applicability to Alberta

Use of gaseous and solid wastes:Use of gaseous and solid wastes:Use of gaseous and solid wastes:

COCOCO222 emitted + mine/industrial wastesemitted + mine/industrial wastesemitted + mine/industrial wastes

Lower COLower COLower CO222 emissions + recycle wastes + valueemissions + recycle wastes + value-emissions + recycle wastes + value--added/added/added/

environmentally safe product : Carbonatesenvironmentally safe product : Carbonates environmentally safe product : Carbonates

Références

Documents relatifs

This study focuses on the durability indicators of SCMs cement materials such as water porosity, apparent chloride diffusion coefficient (D app,Cl ),

For samples with a susceptibility x different from that of the plate, a variation of flux takes place that gives rise to an induced voltage in two coils, 300

Here a zooarchaeological approach is applied to the leather finds, to identify the animal species used for leather shoes in 16 th -18 th century Turku as a viewpoint for

It constructs a third text in-between the self-translation of Samuel Beckett’s The Unnamable and L’Innommable.. The third text is a performative space, where reading takes

In this work, the ability of chrome shavings (CS) and of buffing dusts of crust leather (BDCL) to remove motor oils and oily wastes from demineralised water and natural sea- water

On an other hand, despite Assumption 7 , there may exist a countable infinite number of resonances between incoming frequencies, as it is the case in Example 3.1 of

les voies biliaires commencent au canalicule biliaire qui vont se réunir pour former les canaux hépatiques gauche et droit qui renquillent la bile du lobe gauche et

The logic is an extension of intuitionistic linear logic with greatest fixed points, pointer assertions for reasoning about the heap, and modalities for reasoning about