CD Skripsi
Executive Summary Rancangan Pabrik Diphenyl Carbonate Proses Polimeri/Lummus Dengan Desain Alat Utama Reaktor Dimetil Karbonat (R-101)
ABSTRACT
Diphenyl carbonate (DPC) is synthesized with the raw materials of methanol, oxygen, and carbon monoxide to synthesize dimethyl carbonate (DMC), and then DMC is reacted with phenol to synthesize DPC. The plant is planned to be built in Dumai City, Riau, Indonesia. Dumai City was chosen to facilitate access to fulfilment of raw materials such as methanol, carbon monoxide and phenol. The DPC plant is built with a capacity of 90,000 tonnes/year. DPC is a precursor to the manufacture of polycarbonate (PC), so DPC is focused on fulfilling the raw materials for making PC, seeing that the Asian region is the largest consumer of PC.
The process technology used is the Lummus process technology. DPC production with the Lummus process uses integration to improve raw material utilisation and energy efficiency. The designed plant produces DMC first before producing DPC. DMC is synthesised by oxidative carbonylation process of methanol, while DPC is synthesised by transesterification process of DMC and phenol to synthesise phenyl methyl carbonate (PMC) and then disproportionation process of PMC to obtain DPC. The DPC plant requires utilities in the form of utility water of 547,442.04 kg/hour, steam of 10,057.97 kg/hour, electric power of 317.22 kW/hour and boiler fuel in the form of LNG of 1,333.16 L/hour. Factory waste is treated using the activated sludge process.
The designed factory shows an economic analysis with a total capital investment (TCI) of Rp 4,113,620,325,435.06; cost of manufacturing (COM) of Rp 3,336,607,141,907.03; and working capital (WC) of Rp 685,603,387,572.51 and the selling price of the products produced is Rp 5,857,200,000,000.00 per year. Thus, the profitability analysis obtained in the form of net present value (NPV) of Rp 2,580,726,220,873.68 with a discount rate of 16%, internal rate of return (IRR) of 28.96%, break even point (BEP) at 35% production capacity, payback period (PBP) for 6.72 years (6 years 9 months), and return on investment (ROI) of 56.48%. Based on the profitability analysis, the DPC plant design is feasible to establish and shows a good investment.
Keywords: Diphenyl Carbonate, Economic Analysis, Plant, Sensitivity, Utilities.
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