1981 Mavrovic 4296252 Urea Process
This invention describes an improved recirculation process. Reactor effluent is split into a minor and a major stream. The major stream is let down in pressure and then passed into the bottom part of a gas liquid separator wherein the gas stream rises through a packed midsection. The minor stream is cooled and then let down in pressure and also passed into the top part of the same gas liquid separator. The liquid parts passes also through the packed midsection and gets into contact with the gas stream of the major stream. The liquid will then absorb carbon dioxide and water from the gas stream.