Urea production process and plant with parallel MP units
AssigneeStamicarbon B.V.
InventorWilhelmus Hubertus Geurts
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Abstract
Some embodiments of the disclosure pertain to a plant and a process for producing a urea-containing product. The plant comprises a medium pressure dissociation unit and a high pressure CO2 stripper each receiving a part of the urea synthesis solution. Stripped urea solution is further treated in a medium pressure treatment unit.
Claims22
A plant for producing a urea-containing product, the plant comprising a urea production section comprising a high pressure (HP) synthesis section comprising a HP stripper, a reactor for forming urea from NH3 and CO2, and a HP carbamate condenser, the urea production section further comprising a medium pressure (MP) treatment unit, an MP dissociator and an MP condensation section,
- wherein the reactor has an outlet for a urea synthesis solution connected to a first liquid flow line connected to the HP stripper, wherein said outlet is also connected to a second liquid flow line connected to the MP dissociator, wherein the second liquid flow line bypasses the HP stripper,
- wherein the HP stripper has an inlet for CO2 feed as strip gas,
- wherein the plant comprises a liquid flow line for stripped urea solution from said HP stripper to said MP treatment unit, a gas flow line for a first MP gas stream from the MP treatment unit to the MP condensation section, and a gas flow line for a second MP gas stream from the MP dissociator to the MP condensation section.
Dependencies are inferred from the claim text.