PABRIK DIMETHYL ETHER DARI METHANOL KAPASITAS 77.000 TON/TAHUN

• Main Authors: , PANDU PRABOWO JATI, , Sang Kompiang Wirawan, ST,MT,Ph.D
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2013
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/126360/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=66583
• Institution: Universitas Gadjah Mada

Dimethyleter is one of several compound in which proposed as an alternative fuel in order to reduce the dependency of community from oil and gas fuel based. In addition, its low content of NOx and SOx has benefit to reduce the environmental polution. The plant�s further development supoorted by the fact that the energy needs in Indonesia keep increasing in years meanwhile the oil production decreasing. The plant is planned to operate for 330 days / year with dimethyleter production capacity of 20,000 tons / year. The main raw material required is as much as 97,970.4 ton / year of 99% methanol. The method used is the dehydration of methanol with �-alumina catalyst. In general, dimethylether manufacturing stages process is as follows: (i) dehydration of methanol �-alumina catalyst which takes places in a fixed bed multitube reactor, (ii) dimethylether product purification through distillation. As a support, utility plant unit supplies the cooling water as much as 1,410.1383 tons / hour, 1,406.25 kVA electricity, compressed air up to 259.7143 m3/hr, and 18.5939 tons / hour of steam. The plant will be established in the city of Bontang, East Kalimantan province, with consideration of raw material oriented. Bontang region close to the methanol industry, and close to the harbor making it easier for the marketing of the product dimethylether. Plant location close to the sea, so that the source of water for utility plant unit derived from seawater. Calculation of economic evaluation results is fixed capital required equal to $16,183,535 + Rp 64.123.740.000 and working capital equal to $11.931.284 + Rp 3.211.166.000. At 100% production rate, obtained ROI before tax of 34,86%, ROI after tax of 13,95%. POT before tax of 2,23 years, POT after tax of 4,18 years, with BEP at 47,63%, SDP at 30,88%, and 31,94%. for DCFRR. Based on consideration of the economic evaluation results, this dimethylether plant with capacity 77000 tons / year worth to be studied further.