EP 4340980 A1 20240327 - ADVANCED PLANT FOR THE PRODUCTION OF UREA IN AQUEOUS SOLUTION IN OPERATING UNITS OF LIMITED SIZE
Title (en)
ADVANCED PLANT FOR THE PRODUCTION OF UREA IN AQUEOUS SOLUTION IN OPERATING UNITS OF LIMITED SIZE
Title (de)
ERWEITERTE ANLAGE ZUR HERSTELLUNG VON HARNSTOFF IN WÄSSRIGER LÖSUNG IN BETRIEBSEINHEITEN MIT BEGRENZTER GRÖSSE
Title (fr)
INSTALLATION AVANCÉE POUR PRODUIRE DE L'URÉE EN SOLUTION AQUEUSE DANS DES UNITÉS DE FONCTIONNEMENT DE TAILLE LIMITÉE
Publication
Application
Priority
- IT 202100013316 A 20210521
- IB 2021059706 W 20211021
Abstract (en)
[origin: WO2022243742A1] The invention describes a plant for the production of urea in aqueous solution comprising: a pure water treatment apparatus (lmp_H20); a storage and heating tank (S1) for the pure water (H20), comprising a temperature probe (ST1), a conductivity probe (SC1) and a level probe (SL1); the plant further comprising a urea loading means (LOAD_ urea), a hold-up tank (S2) comprising a temperature probe (ST2), a conductivity probe (SC2), a level probe (SL2) and a refractometer (Q01); a nanoemulsion system (5) for mixing the loaded urea (urea) and the loaded pure water (H20), thereby determining the urea in aqueous solution (SOL) at an adjustable solution temperature (TSOL) and at a concentration (CONG) of urea; the nanoemulsion system (5) further comprising a dissolution means (CAV), preferably a pumping means P3 and a mixing motor M5; wherein the water filtration apparatus (lmp_H20) comprises a first adjustment means (M_H20) for adjusting the pure water (VH20) exiting from the water treatment apparatus (lmp_H20) and entering the storage and heating tank (S1), on the basis of one or more among: the data received from the temperature probe (ST1), the data received from the level probe (SL1) and the data received from the conductivity probe (SC1); wherein said urea loading means (LOAD urea) comprises a second adjustment means (M urea) for adjusting an adjustable mass of urea (m_UREA) entering said nanoemulsion system (5) on the basis of one or more among: the data received from the temperature probe (ST2), the data received from the level probe (SL2) and value of the concentration (CONG) of urea (urea) measured by the refractometer (Q01); wherein an adjustment means (M_H20;M_urea) sets a variation (ATSOL) of the adjustable solution temperature (TSOL) such as to modify the measured concentration value (CONG) until arriving at a target concentration value (CONCTARG) at a target solution temperature (TSOLTARG), such that 17°<TSOLTARG<30°.
IPC 8 full level
B01J 4/02 (2006.01); B01F 31/80 (2022.01); B01J 19/00 (2006.01); B01J 19/24 (2006.01); C02F 1/44 (2023.01); C07C 273/02 (2006.01)
CPC (source: EP)
B01J 4/02 (2013.01); B01J 19/0013 (2013.01); B01J 19/0033 (2013.01); B01J 19/0053 (2013.01); B01J 19/2405 (2013.01); C02F 1/441 (2013.01); C07C 273/02 (2013.01); B01J 2219/00009 (2013.01); B01J 2219/00022 (2013.01); B01J 2219/00031 (2013.01); B01J 2219/00063 (2013.01); B01J 2219/00135 (2013.01); B01J 2219/00175 (2013.01); B01J 2219/0018 (2013.01); B01J 2219/00182 (2013.01); B01J 2219/00198 (2013.01); B01J 2219/002 (2013.01); B01J 2219/00209 (2013.01); B01J 2219/00216 (2013.01); B01J 2219/00234 (2013.01); C02F 1/68 (2013.01); C02F 2103/04 (2013.01); C02F 2209/02 (2013.01); C02F 2209/05 (2013.01); C02F 2209/42 (2013.01); Y02A 50/20 (2018.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
IB 2021059706 W 20211021; EP 21811468 A 20211021