FLAMANT Gilles

PROMES-CNRS

Gilles.flamant@promes.cnrs.fr

Solar Heat in industrial Process&

the SOLPART Project 28 November 2019

ENSIACET Toulouse

Info-Day

Content

• Introduction to thermochemistry

• How to interface concentrated solar energy and reacting medium?

• Indirect heating reactors

• Direct heating reactors

Heat in woldwideenergy consumption

Heat in woldwideenergy consumption

Heat in woldwideenergy consumption

EJ = ExaJoule = 1018 J

50% at T > 400°C

Heat in ProcessIndustry

Heat in ProcessIndustry

High temperatureHeat in Industry

50% at T > 400°C

High temperatureHeat in Mineral

Industry

REACTION REACTION TEMP.

(°C)

REACTION HEAT

(kJ/kg product)

USE

Limestone

CaCO3 --> CaO

800-950°C 1700-1800 Lime, Cement

Dolomite

MgCa(CO3)2 -->

MgO.CaO

650-750 1000-1100 Cement, dolomitic

lime, refractories

Gypsum

CaSO4.2H2O -->

CaSO4

140-180 700-1000 Plaster, plaster

board,...

Kaolinite -->

metakaolinite

500-900 > 700 Pozzolanic additive

for cement and

lime-mortar

Low grade

Phosphate Rock --

> high grade

phosphate

700-800 Normally

exothermic through

combustion of C-

contaminants

Chemical industry

(fertilizer,

phosphoric acid...)

Clays with organic

contaminants

700-800 See phosphates Ceramics, tiles,

bricks, pipes...

Solar Heat in ProcessIndustry

(SHIP)

• Process industries consume a hughe quantity of heat

mainly supplied by fuel consumption = Great opportunity

for solar energy and concentrated solar energy for

applications at T > 400°C (50% of total consumption)

• But, development of solar energy in process industry

is very small, why?

Processes are generally continuous ans solar energy

not (storage or hybridation)

Integration of solar energy in existing process is

complex

Quality warranty is difficult to obtain

SOLPART project

A step forward the develoment

of solar calcination technologies

Decarbonation:a great contribution

to CO2 emission

• calcination of lime, dolomite and cement

processing is a critical target for solar heat

because it is responsible of about 8% of

worldwide anthropogenic CO2 emission

• In traditional processes, the heat of reaction at

about 850-900°C is supplied by combustion of

carbon-based fuels

• Solar calcination can save up to 40% of the CO2

emissions of this industrial sector.

SOLPART = Solar heat instead of

combustion

Development of solar receivers / reactors at lab-

scale (about 10-15 kW)

Development of one solar reactor / receiver at

pilot scale (about 40-50 kW)

Environmental assessment of the solar

technology by comparison with standard

technologies

Scaling up and process integration

SOLPART Partners

SOLPART Info-Day

This project has received funding from the

European Union’s Horizon 2020 research and

innovation programme under grant agreement No

654663, SOLPART project

Acknowledgements

Thank you for your attention