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Lisendra Marbelia
Departemen Teknik Kimia, Fakultas Teknik, Universitas Gadjah Mada, Yogyakarta
Chemical Engineering, Chemistry & Bioengineering

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Optimasi biaya dalam proses pemurnian metanol untuk mengurangi resin sebagai limbah bahan berbahaya dan beracun di PT Kaltim Methanol Industri Reno Imam Arthapersada; Muhammad Kurniawan Adiputra; Indra P. Hakim; Imam Karfendi Putro; Asep Zainuddin; Lisendra Marbelia; Ahmad T. Yuliansyah
Jurnal Rekayasa Proses Vol 14 No 2 (2020): Volume 14, Number 2, 2020
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.59553

Abstract

Purification process of raw methanol from its impurities to produce pure methanol at PT. Kaltim Methanol Industri (PT KMI) is carried out by several steps, including degassing, distillation, and adsorption. One of the impurities, tri methyl amine (TMA), could be removed by adding NaOH. Another method to remove TMA is conducted by adsorption process on ion exchange resin on the vessel called TMA catchpot. The TMA catchpot performance is very crucial in methanol purification process. Thus, monitoring and optimization are required to be performed regularly. Once the TMA catchpot resin has exhausted, the performance will be drop and methanol purification could not be done efficiently. Furthermore, the ion exchange resin should be replaced with new resin. This study evaluates the performance of the TMA catchpot during the charge of 2010, 2012, and 2016, calculates the NaOH consumption during operational time, and optimizes the cost. Resin regeneration option was introduced and compared with the conventional method (i.e. resin replacement). Economic evaluation shows that the lowest annual cost could be obtained by fresh resin replacement every 4 years and resin regeneration every 2 years. Resin regeneration option gives not only annual cost reduction, but also positive impact to the environment, by decreasing the amount of hazardous waste (i.e. spent resin) significantly.
Evaluasi manfaat penggantian chemical amine N1800 menjadi N1805 dalam rangka pengurangan jejak karbon Wahyu Widiyantara; Muhammad Kurniawan Adiputra; Eka Wijayanto; Lisendra Marbelia
Jurnal Rekayasa Proses Vol 15 No 2 (2021): Volume 15, Number 2, 2021
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.68814

Abstract

Continuous innovation in tools and/or processes in the chemical industry to achieve efficiency and an environmentally friendly industry is mandatory. In supporting this, PT. KMI modified the process by replacing the neutralizing amine material used in the boiler feed water system. The replacement of amine was carried out in mid-2017, from amine N1800 to N1805. Data on consumption of amines and solvent water for 2015-2020 was used as the basis for the evaluation. Estimation of the amount of emissions was also carried out by calculating the need for solvent water, drum containers for amine materials and also transportation of materials from the producer to PT. KMI. From the calculation results, it can be concluded that changing the amine material from N1800 to N1805 provides good benefits, namely: (1) reducing the annual cost of consuming amine, (2) reducing the need for solvent water and the burden of water pollutants and (3) reducing emissions significantly . The reduction in emissions mostly comes from savings in the use of container drums and transportation, while the reduction in water use is less significant.
Co-Authors Ahmad T. Yuliansyah Asep Zainuddin Eka Wijayanto Imam Karfendi Putro Indra P. Hakim Muhammad Kurniawan Adiputra Reno Imam Arthapersada Wahyu Widiyantara