Investigation on process changes of 1,620 tons per day
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In the 1970s, my country introduced 13 sets of CO2 stripping urea processes. After more than 30 years of operation, most of them have undergone major technological improvements or production expansion. Please tell us about the transformation you know about. Which set is best stated.
This post was last edited by hai3 on 2010-1-14 01:22 Yuntianhua used the Stamicarbon process package transformation in 2002 to increase the production capacity of the device to 2,300 tons per day as an energy-saving and production-increasing transformation. The Daqing Petrochemical Fertilizer Plant was also renovated in 2005 to produce 2,300 tons per day.
Yuntianhua adopts double stripping tower and double circulation system for transformation. Daqing Petrochemical adopts parallel medium pressure system.
According to well-informed sources: The French-type plant Guangzhou Petrochemical relocated to Xinjiang, the Nanjing French-type plant stopped production and is waiting to be relocated to Xinjiang, the Qilu Improved C-method plant moved to Dazhou, the American and Dutch plants such as Canghua and Liaohua were not enough, and the three plants in Hunan, Hubei and Dingqing were "eating" pulverized coal.
Ask the experts: “During the operation of "Double Stripping Tower", how is the synthetic liquid from the urine tower distributed to the two stripping towers? Or how to ensure that the amount of synthetic liquid entering the two stripping towers is relatively even?
5# lxq700918 is a gas stripping tower connected in parallel! In 2005, Daqing's plant was renovated to increase production and a medium-pressure system and evaporation system were added! But now the new evaporation system is useless!
Moderator, one stream of urine enters two stripping towers in two ways (two outlet valves), and one stream of CO2 enters two stripping towers in two ways. There are indeed problems with stripping load and gas-liquid ratio. Maybe* It'll be fine once you get used to it, but it's inconvenient to post their pictures.