Scoring For Urea Process

Urea process selection description Process Conventional process Criteria Total cost Product yield

Sustainability and manufacturability

Safety Environment impact

Literature

70% urea solution production Partial recycleProcess flow consist decomposer to separate unconverted product and recovery it by neutralized with acid to form ammonium salt. Low complexity A lot byproduct discharge that need to be treat (Mukesh M. C, n.d)

Stamicarbon CO2 – striping process

Snamprogetti ammonia & self-striping process

72% urea solution production Total recyclehas double stripper to minimize unconverted product (NH3, CO2,)

70% urea solution production Total recyclehas stripper to minimize unconverted product (Carbamate)

High complexity low byproduct discharge that need to be treat (Prem Baboo et al, 2016)

High complexity low byproduct discharge that need to be treat (Saipem. nd) & (Jaimin Pandya, 2015)

Stamicarbon CO2 – striping process

Snamprogetti ammonia & self-striping process

Isoberic double recycle process

ACES process

Isoberic double recycle process

ACES process

Urea process scoring method Process Conventional process Criteria Total cost Product yield Sustainability and manufacturability Safety Total score

Reference Prem Baboo, Mark Brouwer, Jo Eijkenboom, Majid Mohammadian, Giel Notten, Girish Prakash. (2016, October). The Comparison of Stamicarbon and Saipem Urea Technology. UreaKnowHow.com: where the urea industry meets. Jaimin Pandya. (2015, July). Manufacture of Urea by Snamprogetti Process. Saipem. (n.d). The snamprogetti urea technology. Saipem.com – A subsidiary of Eni S.p.A Mukesh M. C. (n.d). Urea Project report. University Baroda