Toyo engineering-aces process

Toyo Engineering-ACES Process. The synthesis section of the ACES process (Fig. 8) consists of a reactor, a stripper, two carbamate condensers, a scmbber and operates at 17.5 MPa (175 bars). The reactor is operated at 190°C with a NH3/C02 ratio of 4.0 (mol/mol). Liquid NH3 is fed directly into the reactor by a centrifugal ammonia pump. Gaseous C02 is sent from the centrifugal C02 compressor to the bottom section of the falling-film type stripper. 

The synthesis section of the Toyo Engineering-ACES (Advanced Process for Cost and Energy Saving) process is shown in Figure 11.4. In this process the synthesis section operates at 175 bar with an NH3-to-C02 molar ratio of 4.0 and a temperature of 185 to 190°C. Liquid ammonia is fed directly into the reactor while gaseous CO2 is sent from the centrifugal CO2 compressor at the bottom of the stripper108,110 ... 

ACES 21 [Advanced process for Cost and Energy Saving] A process for making urea from carbon dioxide and ammonia, developed by Toyo Engineering Corporation. Toyo has been developing and licensing urea processes since 1961. Earlier versions of its urea process were named TR-C1, TR-D, and ACES, and were installed in Spain and several Asian countries. The latest version, ACES 21, has been built in China and Indonesia. 

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