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1. WO2020095132 - SYSTÈME D'ÉVAPORATION THERMIQUE POUR SÉPARER UN SOLUTÉ D'UN MÉLANGE SOLUTÉ-SOLVANT

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS:

1. A thermal evaporation system (100) for seprating solute from a solute-solvent mixture comprising:

a. an evaporator module (102) configured to concentrate a solute-solvent mixture by evaporating solvent from said mixture to provide a concentrated solute- solvent mixture of a first concentration;

b. an effluent tank (106) configured to supply said solute-solvent mixture to said evaporator module (102);

c. a dryer (104) configured to further concentrate said concentrated solute- solvent mixture of said first concentration and provide a solute-solvent mixture of a second concentration via outlet (130);

wherein the solute-solvent mixture of the second concentration is dry solute; d. a recirculation conduit (110) configured to recirculate vapours generated by said dryer (104) within said system; and

e. a thermocompressor (108) configured to receive said vapors generated by said dryer from said recirculation conduit(HO) and a live steam stream (114) from an external source and wherein said thermocompressor (108) supplies a compressed mixture of said steam and vapors to said evaporation module (102) through a heating fluid inlet (116) of said evaporation module.

2. The thermal evaporation system (100) as claimed in claim 1, wherein a recompressor (112) is placed between said dryer(l04) and said thermocompressor (108) such that said recirculation conduit (110) is split into a first part (l lOa) and a second part (l lOb), wherein said first part(HOa) carries the vapors generated by the dryer (104) to said recompressor (112) wherein said recomprssor compresses said vapors which are then received by said thermocompressor through said second part (1 lOb).

3. A thermal evaporation system (200) for seprating solute from a solute-solvent mixture comprising:

a. an evaporator module (102) configured to concentrate a solute-solvent mixture by evaporating solvent from said mixture to provide a concentrated solute- solvent mixture of a first concentration;

b. an effluent tank (106) configured to supply said solute-solvent mixture to said evaporator module (102);

c. a dryer (104) configured to further concentrate said concentrated solute- solvent mixture of said first concentration and provide a solute-solvent mixture of a second concentration;

wherein the solute-solvent mixture of the second concentration is dry solute; d. a recirculation conduit (110) configured to recirculate vapours generated by said dryer (104) within said system; and

e. a thermocompressor (108) configured to receive said vapors generated by said dryer from said recirculation conduit (110) and a live steam stream (114) from an external source and wherein said thermocompressor (108) supplies a compressed mixture of said steam and vapors to said dryer (104) through an inlet (126) of said dryer (104).

4. The thermal evaporation system (200) as claimed in claim 3, wherein a recompressor (112) is placed between said dryer(104) and said thermocompressor (108) such that said recirculation conduit (110) is split into a first part (110a) and a second part (110b), wherein said first part(HOa) carries the vapors generated by the dryer (104) to said recompressor (112) wherein said recompressor compresses said vapors which are then received by said thermocompressor through said second part (110b).

5. A thermal evaporation system (300), for seprating solute from a solute-solvent mixture comprising:

a. an evaporator module (102) configured to concentrate a solute-solvent mixture by evaporating solvent from said mixture to provide a concentrated solute- solvent mixture of a first concentration;

b. an effluent tank (106) configured to supply said solute-solvent mixture to said evaporator module (102);

a dryer (104) configured to further concentrate said concentrated solute- solvent mixture of said first concentration and provide a solute-solvent mixture of a second concentration;

wherein the solute-solvent mixture of the second concentration is dry solute; c. a recirculation conduit (110) configured to recirculate vapours generated by said dryer (104) within said system; and

e. a recompressor(112) configured to receive said vapors generated by said dryer from said recirculation conduit (110) and compresses said vapors and circulates them to said dryer (104) through an inlet (126) of said dryer (104), wherein said vapors are mixed with a stream of live steam (190) before they enter the inlet (126).

6. A thermal evaporation system (400) for seprating solute from a solute-solvent mixture comprising:

a. an evaporator module (102) configured to concentrate a solute-solvent mixture by evaporating solvent from said mixture to provide a concentrated solute- solvent mixture of a first concentration;

b. an effluent tank (106) configured to supply said solute-solvent mixture to said evaporator module (102);

c. a dryer (104) configured to further concentrate said concentrated solute- solvent mixture of said first concentration and provide a solute-solvent mixture of a second concentration via outlet (130);

d. a recirculation conduit (110) configured to recirculate vapours generated by said dryer (104) within said system;

e. a first thermocompressor (108) configured to receive a partial portion said vapors generated by said dryer (104) from said recirculation conduit(HO) and a live steam stream (114) from an external source and wherein said first thermocompressor (108) supplies a compressed mixture of said steam and vapors to said evaporation module (102) through a heating fluid inlet (116) of said evaporation module ; and

f. a second thermocompressor (108’) configured to receive a partial portion of said vapors generated by said dryer from said recirculation conduit (110’) and a live steam stream (114’) from an external source and wherein said thermocompressor (108’) supplies a compressed mixture of said steam and vapors to said dryer (104) through an inlet (126) of said dryer (104).

7. The thermal evaporation system (400) according to claim 6, wherein wherein a recompressor (112’) is placed between said dryer(l04) and said thermocompressor (108’) such that said recirculation conduit (110’) is split into a first part (llOa’) and a second part (1 lOb’), wherein said first part(l lOa’) carries a partial portion of the vapors generated by the dryer (104’) to said recompressor (112’) wherein said

recompressor compresses said vapors which are then received by said thermocompressor (108’) through said second part (l lOb’).

8. A thermal evaporation system (500) for seprating solute from a solute-solvent mixture comprising:

a. an evaporator module (102) configured to concentrate a solute-solvent mixture by evaporating solvent from said mixture to provide a concentrated solute- solvent mixture of a first concentration;

b. an effluent tank (106) configured to supply said solute-solvent mixture to said evaporator module (102);

c. a dryer (104) configured to further concentrate said concentrated solute- solvent mixture of said first concentration and provide a solute-solvent mixture of a second concentration via outlet (130);

d. a recirculation conduit (110) configured to recirculate vapours generated by said dryer (104) within said system; and

e. a recompressor(l 12”) configured to receive a partial portion of said vapors generated by said dryer (104) from said recirculation conduit (110”) and compresses said vapors and circulates them to said dryer (104) through an inlet (126) of said dryer (104), wherein said vapors are mixed with a stream of live steam (190) before they enter the inlet (126).

9. A thermal evaporation system (600) for seprating solute from a solute-solvent mixture comprising:

a. an evaporator module (102) configured to concentrate a solute-solvent mixture by evaporating solvent from said mixture to provide a concentrated solute- solvent mixture of a first concentration;

b. an effluent tank (106) configured to supply said solute-solvent mixture to said evaporator module (102);

c. a dryer (104) configured to further concentrate said concentrated solute- solvent mixture of said first concentration and provide a solute-solvent mixture of a second concentration;

d. a first recirculation conduit (l lOa) and a second recirculation conduit (llOb) for circulating vapors generated by said dryer in the system;

e. a first recompressor (112) that receives a partial portion of the vapors generated by the dryer (104) through said recirculation conduit l lOa wherein said first recomprssor compresses said vapors;

f. a first thermocompressor (108) configured to receive the compressed vapors from said first recompressor through said second recirculation (l lOb) conduit and a live steam stream (114) from an external source ,and wherein said thermocompressor (108) supplies a compressed mixture of said steam and vapors to said evaporation module (102) through a heating fluid inlet (116) of said evaporation module; and

g. a second thermocompressor (108’) configured to receive a partial portion of said vapors generated by said dryer from said recirculation conduit (110’) and a live steam stream (114’) from an external source and wherein said thermocompressor (108’) supplies a compressed mixture of said steam and vapors to said dryer (104) through an inlet (126) of said dryer (104).

10. The thermal evaporation system (600) as claimed in claim 9, wherein wherein a second recompressor (112’) is placed between said dryer(l04) and said thermocompressor (108’) such that said recirculation conduit (110’) is split into a first part (l lOa’) and a second part (1 lOb’), wherein said first part(l lOa’) carries a partial portion of the vapors generated by the dryer (104’) to said second recompressor (112’) wherein said recompressor compresses said vapors which are then received by said thermocompressor (108’) through said second part (llOb’).

11. A thermal evaporation system (700) for seprating solute from a solute-solvent mixture comprising:

a. an evaporator module (102) configured to concentrate a solute-solvent mixture by evaporating solvent from said mixture to provide a concentrated solute- solvent mixture of a first concentration;

b. an effluent tank (106) configured to supply said solute-solvent mixture to said evaporator module (102);

c. a dryer (104) configured to further concentrate said concentrated solute- solvent mixture of said first concentration and provide a solute-solvent mixture of a second concentration;

d. a first recirculation conduit (l lOa) and a second recirculation conduit (llOb) for circulating vapors generated by said dryer in the system;

e. a first recompressor (112) that receives a partial portion of the vapors generated by the dryer (104) through said recirculation conduit l lOa wherein said first recomprssor compresses said vapors;

f. a first thermocompressor (108) configured to receive the compressed vapors from said first recompressor through said second recirculation (l lOb) conduit and a live steam stream (114) from an external source ,and wherein said thermocompressor (108) supplies a compressed mixture of said steam and vapors to said evaporation module (102) through a heating fluid inlet (116) of said evaporation module; and

g. a second recompressor(H2”) configured to receive a partial portion of said vapors generated by said dryer (104) from said recirculation conduit (110”) and compresses said vapors and circulates them to said dryer (104) through an inlet (126) of said dryer (104), wherein said vapors are mixed with a stream of live steam (190) before they enter the inlet (126).

12. The thermal evaporation system according to any of the preceeding claims, wherein said evaporator module (102) is a multieffect evaporator module (MEE).

13. The thermal evaporation system according to any of the preceeding claims, wherein said dryer (104,104’) has a rotary air lock valve to minimize air ingress.

14. The thermal evaporation system according to claim 12, wherein said evaporator module (102) comprises a plurality of evaporation stages.

15. The thermal evaporation system according to claim 12, wherein said first concentration is upto 40% dry.

16. The thermal evaporation system according to claim 12, wherein said second concentration is upto 100% dry.