Pra Rancangan Pabrik Amonium Nitrat dari Asam Nitrat dan Amonia dengan Proses UHDE

Handy, Febry Widiatniko (2024) Pra Rancangan Pabrik Amonium Nitrat dari Asam Nitrat dan Amonia dengan Proses UHDE. Undergraduate thesis, UPN Veteran Jawa Timur.

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Abstract

Ammonium nitrate factory from nitric acid and ammonia with UHDE process with capacity of 130,000 tons/year. This factory is planned to be established in the Kujang Cikampek Industrial Area with the complete address at Jl. Kota Bukit Indah Raya, Kamojing, Kec. Cikampek, Karawang Regency, West Java 41373. The selection of the location for the establishment of this factory was determined based on several factors supporting the smooth production and success of the factory. In addition, this factory is also targeted to be affiliated with PT Pupuk Kujang, as a producer of ammonia raw materials and also PT Multi Nitrotama Kimia as a producer of nitric acid. In the process, nitric acid (HNO3) with a purity of 60% is stored in a storage tank under operating conditions of 30⁰C and a pressure of 1 atm. Meanwhile, liquid ammonia (NH3(l)) with a purity of 99.5% is stored in a storage tank at operating conditions of 30⁰C and 11.5 atm. Both materials undergo a neutralization process in a bubble reactor with a stirrer at operating conditions of 175⁰C and a pressure of 4.5 atm. Before being flowed into the reactor. The operating conditions of nitric acid (HNO3(l)) and ammonia (NH3(g)) must first be adjusted to the operating conditions in the reactor. Ammonia gas is fed into the reactor through a sparger installed on the lower side of the reactor. Furthermore, nitric acid is fed into the reactor and will come into contact with ammonia gas co-currently. The reaction that occurs in the reactor is exothermic (producing heat), so a cooling medium is needed to maintain the temperature in the reactor and prevent decomposition of ammonium nitrate (NH4NO3). NH3 gas and water vapor that exits to the top of the reactor will be absorbed by a scrubber using process water. While ammonium nitrate (NH4NO3(aq)) output from the bottom of the reactor in a concentration of 83%. Then the ammonium nitrate solution will be flowed to the vacuum evaporator to be concentrated to 96%. Ammonium nitrate output from the evaporator goes to the mixing tank to be mixed with off spec screening (products that do not meet standards). After that, pumped to the prilling tower to form ammonium nitrate prills. Air is blown into the prilling tower through the bottom of the tower. The air comes into contact with 96% ammonium nitrate and forms prill granules that are collected in a fluidized bed cooler for the cooling process. Ammonium nitrate prills (NH4NO3(s)) then pass through a vibrating screen to separate prills on size (8 mesh). Then the prill that meets the standard is given anti-cacking so that it does not clump during storage, given to the drum coating with calcium phosphate Ca3(PO4)2. After that, the product is ready to be packed in 50 kg packing and marketed.

Item Type:	Thesis (Undergraduate)
Contributors:	Contribution Contributors NIDN/NIDK Email Thesis advisor Muljani, Srie NIDN0012116111 UNSPECIFIED
Subjects:	T Technology > TP Chemical technology > TP155 Chemical engineering
Divisions:	Faculty of Engineering > Departement of Chemical Engineering
Depositing User:	Febry Widiatniko Handy
Date Deposited:	17 Sep 2024 07:22
Last Modified:	17 Sep 2024 07:22
URI:	https://repository.upnjatim.ac.id/id/eprint/29207

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