Pengembangan Teknologi Berbasis Media Air Subkritis dan CO2 Bertekanan untuk Intensifikasi Proses

https://doi.org/10.22146/jrekpros.41868

Firman Kurniawansyah(1*)

(1) Departemen Teknik Kimia, Institut Teknologi Sepuluh Nopember, Surabaya, 60111, Indonesia
(*) Corresponding Author

Abstract


A B S T R A C T

Green solvent, an environmentally friendly solvent in form of subcritical water (SBCW) and pressurized CO2, has been used as media in process intensification. It has characteristic of having low or even zero toxicity. Hence it can simplify purification procedure. In this communication, development of technology applications of those green solvents, i.e. extraction, particle synthesis, and reaction engineering, is briefly presented. In general, studies show a positive utilization of green solvents of subcritical water and pressurized CO2. For example, in pectin extraction, yield up to 90% has been obtained when the combined solvent was used. In another application, hydrolysis using SBCW-CO2 as combined solvent has facilitated 100% conversion of pinene.

Keywords: carbon dioxide; intensification process; subcritical water

 

A B S T R A K

Green solvent, yakni pelarut yang ramah lingkungan dalam bentuk air subkritis (subcritical water, SBCW) dan CO2 bertekanan yang telah dikembangkan untuk media pemrosesan, sebagai salah satu upaya intensifikasi proses. Solven ini dikatakan ramah lingkungan karena tingkat toksisitas air subkritis maupun CO2 sangat rendah, atau bahkan tidak ada sama sekali, sehingga mempersingkat prosedur purifikasi. Pada artikel pendek ini, pengembangan aplikasi teknologi tersebut diulas sebagai telaah (review) pendek dalam teknologi pemisahan (ekstraksi), sintesis partikel, dan rekayasa reaksi. Hasil-hasil studi pada umumnya memberi konfirmasi positif tentang potensi pemakaian dua fluida ramah lingkungan, yaitu SBCW dan CO2, dalam rekayasa proses. Sebagai contoh pada studi ekstraksi pektin, proses menggunakan green solvent berhasil mencapai yield hingga 90%. Hasil serupa dapat dilihat dari konversi pinene melalui proses hidrolisis hingga mencapai 100%.

Kata kunci: air subkritis; karbon dioksida; intensifikasi proses


Keywords


carbon dioxide; intensification process; subcritical water

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DOI: https://doi.org/10.22146/jrekpros.41868

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