METHOD AND REACTOR FOR PRODUCING UREA Russian patent published in 1997 - IPC

Abstract RU 2078761 C1

FIELD: urea production. SUBSTANCE: urea is produced via interaction of ammonia with carbon dioxide at high pressure and temperature. Inside reactor, parallel flows of liquid and gas phases are created owing to separation of inner space into compartments to avoid excessive mixing of liquid phase. In this case, redistribution of gas with arising bubbles with required size is provided in order to increase heat exchange and mass transfer between the two phases. When gas moves from one compartment into the next one, liquid and gas phases move separately from each other and are distributed to form continuous flow of each phase. Reactor contains cylindrical apparatus whose inner space is separated with partitions into multiple compartments. The partitions include plates and great number of members with openings of the first and second types having rectangular or trapezoidal cross-section and also two perforated side walls. EFFECT: improved parameters of process. 17 cl, 8 dwg

Similar patents RU2078761C1

Title Year Author Number
METHOD AND APPARATUS FOR CONDENSATION OF AMMONIA, CARBON DIOXIDE, AND WATER VAPORS RELEASED IN TREATMENT OF SOLUTION COMING OUT FROM REACTOR FOR UREA PRODUCTION 1991
  • Umberto Zardi[It]
RU2072966C1
METHOD FOR PASSIVATION OF METAL SURFACES 1992
  • Vinchentso Lagano[It]
RU2070230C1
REACTOR FOR HIGHLY PRODUCTIVE UREA SYNTHESIS 1991
  • Dzhordzhio Pagani[It]
RU2042424C1
METHOD OF INDUSTRIAL UREA SYNTHESIS 1992
  • Dzhordzho Pagani[It]
  • Umberto Tsardi[It]
RU2090554C1
METHOD OF INDUSTRIAL SYNTHESIS OF UREA 1992
  • Dzhordzho Pagani[It]
  • Umberto Tsardi[It]
RU2036900C1
METHOD OF UREA SYNTHESIS 1991
  • Dzhordzho Pagani[It]
RU2040518C1
METHOD OF SYNTHESIS OF UREA AND A PLANT FOR UREA PRODUCING 1994
  • Dzhordzho Pagani
RU2127257C1
APPARATUS FOR CARBAMIDE TRACES REMOVAL AND PREVENTION OF IMPURITY SUBSTANCES FORMATION DURING CARBAMIDE SOLUTION VACUUM SEPARATION 1991
  • Dzhordzhio Pagani[Ch]
RU2040309C1
UREA PRODUCTION PLANT AND METHOD OF IMPROVEMENT THEREOF 1993
  • Dzhordzho Pagani
  • Umberto Zardi
RU2132842C1
METHOD AND DEVICE FOR CONDENSING CARBAMATE (VERSIONS) 2004
  • Pennino Lorentso
RU2372327C2

RU 2 078 761 C1

Authors

Mario Dente[It]

Serdzho Botstsano[It]

Dates

1997-05-10Published

1992-01-14Filed