Prarancangan Pabrik Pembuatan Dietanolamida dari Refined Bleached Deodorized Palm Olein (RBDPO) dengan Kapasitas Produksi 37.500 Ton/Tahun dan Tugas Khusus Rancangan Keteknikan Detail Reaktor Amidasi

Abstract

The large number of imports of diethanolamide surfactant (DEA) in Indonesia in 2020 was approached 23,000 tons. Surfactants on the world market are surfactants produced by petroleum derivatives which are actually toxic to the environment. On the one hand, Indonesia produced Refined Bleached Deodorized Palm Olein (RBDPO) in remarkably abundant quantities. The reason of this condition was Indonesia is the country with the largest palm oil commodity in the world. RBDPO can be synthesized into ecofriendly DEA surfactant. Therefore, it is planned to establish a DEA surfactant manufacturing factory using RBDPO and diethanolamine as feedstocks. In designing the DEA surfactant plant, the targeted production capacity is to reach 37,500 tons per annum (TPA) with an operating time of 300 days a year. In the DEA synthesis stage through the amidation reaction stage, continuous stirred tank reactor (CSTR) unit was used with a heating coil operating at a temperature of 75 oC for 55 minutes. The amount of RBDPO required to achieve annual production capacity is 4.185,590 kg/hour or 30.136,248 tons/year. The specific assignment that has been completed is the design of an amidation reactor which has been simulated and optimized for its design volume with the specifications obtained: Volume : 507,195 m3 Reactor height : 6,9791 m Diameter : 4,2672 m Wall thickness : 0,3125 in Stirrer power : 36 hp Spiral diameter : 1,9507 m Coil diameter : 0,1143 m Coil length : 34,9639 m The planned plant location is in Pinang Sebatang Tim Village, Tualang District, Siak Regency, Riau Province with an area of 26,402 m2. The workforce required is 250 people in the form of a Limited Liability Company or Perseroan Terbatas (PT) with a line and staff organizational structure. The results of the economic evaluation of the plant for making diethanolamide from RBDPO and diethanolamine are as follows: • Capital Investment (CI) : Rp 1.234.162.074.054 • Total Cost (TC) : Rp 810.050.451.409 • Profit Margin (PM) : 23,920% • Break Even Point (BEP) : 42,663% • Return on Investment (ROI) : 20,202% • Return On Network (RON) : 33,671% • Pay Out Time (POT) : 4 years, 11 months • Internal Rate of Return (IRR) : 17,397% From the results of the economic evaluation and analysis, it can be concluded that the preliminary plant design for making diethanolamide from RBDPO is feasible to be established.