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Journal : CHEMTAG Journal of Chemical Engineering

UTILIZATION OF BINAHONG (ANREDERA CORDIFOLIA (TEN.) STEENIS) LEAVES EXTRACT AS HERBAL MEDICINE VIA ULTRASONICATION Nury, Dennis Farina; Luthfi, Muhammad Zulfikar
CHEMTAG Journal of Chemical Engineering Vol 5, No 1 (2024): CHEMTAG Journal of Chemical Engineering
Publisher : Universitas 17 Agustus 1945 (UNTAG) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/cjce.v5i1.4764

Abstract

The leaves of Anredera cordifolia, or binahong, are one of the herbal plants with a high potential for antioxidants and have been reported to be rich in flavonoids. This study aimed to determine the best operating conditions in the ultrasonication extraction method from binahong leaves extract on the yield obtained. Experiments were conducted into how extraction conditions affected the ultrasonication extraction of binahong leaves. Different extraction parameters, such as ethanol concentration (20–100%), time (10–40 min), temperature (30–70 C), and yield impacts, were used to extract powdered dried binahong leaves. The results showed all extraction parameters to have significant effects on yield obtained. The maximum yield of extract from binahong leaves was obtained at 60 ml of ethanol concentration, 20 minutes of extraction time, and 50°C ultrasonication bath temperature. Thus, it can be concluded that the ultrasonication process is a good way to obtain a better yield of simplicia of binahong leaves extract as a therapeutic herbal in the future.
EVALUASI KINERJA KOLOM STRIPPER PADA PROSES CO₂ REMOVAL DI UNIT AMONIA Saragih, Juro Dufan; Nury, Dennis Farina
CHEMTAG Journal of Chemical Engineering Vol 6, No 2 (2025): CHEMTAG Journal of Chemical Engineering
Publisher : Universitas 17 Agustus 1945 (UNTAG) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/cjce.v6i2.6320

Abstract

Proses produksi amonia memerlukan tahapan penghilangan karbon dioksida (CO₂) agar gas sintesis terbebas dari senyawa pengganggu yang dapat merusak katalis. Salah satu unit penting dalam proses ini adalah kolom stripper yang berfungsi untuk melepaskan CO₂ dari larutan semi-lean agar dapat digunakan kembali dalam siklus penyerapan. Penelitian ini bertujuan untuk mengevaluasi kinerja stripper berdasarkan perbandingan data desain dan data aktual yang diperoleh dari Distributed Control System (DCS) dan analisis laboratorium selama lima bulan. Evaluasi mencakup perhitungan neraca massa, neraca energi, efisiensi termal, dan persen CO₂ yang berhasil dipisahkan. Hasil studi menunjukkan bahwa efisiensi stripper mengalami fluktuasi dengan rata-rata sebesar 90,11%, yang masih dalam batas toleransi desain. Fluktuasi ini diduga disebabkan oleh variasi kondisi operasi, akumulasi fouling, serta performa peralatan yang tidak optimal. Evaluasi ini memberikan dasar untuk optimasi operasional dan pemeliharaan yang lebih baik di masa mendatang.
Co-Authors AA Sudharmawan, AA Adelia, Putri Jesika Agnesia Putri Rini Ahmad Rifqiyan Farohi Akhmad Zainal Abidin Akhmad Zainal Abidin, Akhmad Zainal Aldillah Herlambang Arum, Amalia Sekar Auriyani, Wika Atro Betariani, Khairunisa Choerudin, Choerudin Chrystover, Endrigo Damayanti Damayanti Deviany Deviany Deviany, Deviany Enny Nurmalasari Fahlovi, Oldy Fahni, Yunita Febriyanto, Pramahadi Feerzet Achmad Ferry Ikhsandy Fitriyani, Vira Fredy Kurniawan Handoko, Yohanes Tri Hendra Setyawan, Hendra Hendratama, Handik Hidayah , Rahmat Taufik Hutabarat, Fransisco Xala Hutabarat, Monalisa Ismi, Lisa Anggraini Jabosar Ronggur Hamonangan Panjaitan Janah, Dikri Uzlifah Jerry, Jerry Kurniawati, Intan Wahyuning Lisa Anggraini Ismi Manurung, Martin Sugiarto Maulana, Akmal Mayastuti, Sherina Melani Putri Miftahurrahmah Miftahurrahmah, Miftahurrahmah Monita Pasaribu Muhammad Fajri Muhammad Nasyarudin Iqbal, Muhammad Nasyarudin Muhammad Zulfikar Luthfi Mustafa , Mustafa Mustafa Mustafa Napitupulu, Lukas Fernando Naufal, Hafidz Naulina, Rosada Yulianti Ningrum, Khofifah Anggitiya Nugroho , Muhammad Erwin Cahyo Nugroho, Muhammad Erwin Cahyo Prahmana, Rico Aditia Pramahadi Febriyanto Puji Rahayu Rahmat Taufik Hidayah Reni Yuniarti Ritonga, Jhordan Safitri, Nurul Ulfa Saragih, Juro Dufan Sarifudin, Alfan Satria , Arysca Wisnu Satria, Arysca Wisnu Setiadi, Tjandra Simanjuntak, Tiurmaida Gebryela Siti Zullaikah Sonjaya, Muhammad Luthfi Suharto Suharto Suharto Suharto Suhartono Suhartono Suhartono Sutri, Reni Tampubolon, Yosi Anugrah S.M Tri Widjaja Tutuka, Rachmadi Variyana, Yeni Yunita Fahni Zulkipli, Rohiman Ahmad Zullaikah, Siti