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All Journal IPTEK The Journal of Engineering Rekayasa Mesin Seminar Nasional Teknik Kimia Kejuangan Konversi Journal of Research and Technology Communications in Science and Technology JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Prosiding Seminar Nasional Sains dan Teknologi Terapan Prosiding Seminar Nasional Teknologi Industri Berkelanjutan JAPI: Jurnal Akses Pengabdian Indonesia Journal of Industrial Process and Chemical Engineering (JOICHE) Bulletin of Chemical Reaction Engineering & Catalysis Dinamika Kerajinan dan Batik: Majalah Ilmiah
Yustia Wulandari Mirzayanti
Institut Teknologi Adhi Tama Surabaya
Agriculture, Biological Sciences & Forestry Arts Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Nursing Public Health Social Sciences Other

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Zn-Mo/HZSM-5 Catalyst for Gasoil Range Hydrocarbon Production by Catalytic Hydrocracking of Ceiba pentandra oil Yustia Wulandari Mirzayanti; Firman Kurniawansyah; Danawati Hari Prayitno; Achmad Roesyadi
Bulletin of Chemical Reaction Engineering & Catalysis 2018: BCREC Volume 13 Issue 1 Year 2018 (April 2018)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.13.1.1508.136-143

Abstract

Biofuel from vegetable oil becomes one of the most suitable and logical alternatives to replace fossil fuel. The research focused on various metal ratio Zinc/Molybdenum/HZSM-5 (Zn-Mo/HZSM-5) catalyst to produce liquid hydrocarbon via catalytic hydrocracking of Ceiba penandra oil. The catalytic hydrocracking process has been applied in this study to crack Ceiba pentandra oil into a gasoil range hydrocarbon using Zn-Mo/HZSM-5 as a catalyst. The effect of various reaction temperature on the catalytic hydrocracking of Ceiba pentandra oil were studied. The Zn-Mo/HZSM-5 catalyst with metal ratio was prepared by incipient wetness impregnation method. This process used slurry pressure batch reactor with a mechanical stirrer. A series of experiments were carried out in the temperature range from 300-400 oC for 2 h at pressure between 10-15 bar. The conversion and selectivity were estimated. The liquid hydrocarbon product were identified to gasoline, kerosene, and gas oil. The results show that the use of Zn-Mo/HZSM-5 can produce gas oil as the most component in the product. Overall, the highest conversion and selectivity of gas oil range hydrocarbon was obtained when the ZnMo/HZSM-5 metal ratio was Zn(2.86 wt.%)-Mo(5.32 wt.%)/HZSM-5 and the name is Zn-Mo/HZSM-5_102. The highest conversion was obtained at 63.31 % and n-paraffin (gas oil range) selectivity was obtained at 90.75 % at a temperature of 400 oC. Ceiba pentandra oil can be recommended as the source of inedible vegetable oil to produce gasoil as an environmentally friendly transportation fuel. 
Effectivity CaO/Hydrotalcite catalyst to biofuel microalgae Nannochloropsis sp conversion Mirzayanti, Yustia Wulandari; Zakariya, Muhammad Fadkhul; Saputra, Denny Angga
Konversi Vol 12, No 1 (2023): April 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v12i1.14209

Abstract

Along with the rapid development of the times, the need for energy is also increasing. Fossil energy in Indonesia reaches 95% of Indonesia’s energy needs. For this reason, it is necessary to find a solution to overcome this, one of which is using renewable energy which must also be environmentally friendly. One alternative energy that has been discovered and is still being developed is biofuel. One of the raw materials that can be used for the production of biofuels is the microalgae Nannochloropsis sp. This study aimed to determine the effect of operating time on %yield and FFA of the biofuel produced and the effect of loading catalyst on %yield and FFA of the resulting biofuel. The highest %yield of crude and the lowest FFA were observed at a reaction time of 3 hours and a catalyst loading of 0.45 %wt with values of 47.981 and 0.064, respectively. The lowest %yield of crude and the highest FFA were obtained at a reaction time of 1 hourwith a catalyst loading of 0.4 %wt with values of 25.730% and 0.133, respectively.
Pendampingan Pemanfaatan Teknologi Digital pada Pengelolaan Pemasaran dan Implementasi Ergonomi sebagai Upaya Meningkatkan Kinerja Ekonomi Digital di Rira Clothing Konveksi Yuliawati, Evi; Widjajanti, Wiwik Widyo; Mirzayanti, Yustia Wulandari; Syamsuri, Syamsuri
JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Vol 7, No 2 (2023): November
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jpp-iptek.2023.v7i2.5017

Abstract

Mitra program Pemberdayaan Kemitraan Masyarakat (PKM) ini adalah Rira Clothing Konveksi yang bergerak di bidang konveksi yang berfokus pada produksi gamis dan seragam kantor. Namun, dengan berkembangnya waktu, saat ini Mitra juga memproduksi pakaian anak perempuan dan big size. Urgensi dari kegiatan PKM ini adalah masa penjualan kedua produk yang hanya pada dua bulan sebelum hari raya. Sementara pada sepuluh bulan yang lain, jumlah order sangat terbatas. Selama ini, Mitra memasarkan produk hanya secara online, seperti melalui IG, Lazada, Shopee, dan Tokopedia. Namun, media tersebut belum bisa meningkatkan penjualan di sepuluh bulan secara optimal. Selain itu, pada saat observasi lapangan, diketahui bahwa terdapat fasilitas pendukung produksi yang menyebabkan pekerja kurang nyaman dalam melakukan aktivitas produksi. Melihat permasalahan yang dialami oleh Mitra, Tim Pelaksana PKM mencoba untuk meningkatkan produktivitas Mitra. Berdasarkan kesepakatan dengan Mitra, terdapat dua bidang utama yang menjadi fokus pada program PKM ini, yaitu pemasaran dan produksi. Tim PKM menawarkan solusi pada bidang pemasaran, yaitu merancang ruangan dan pengadaan fasilitas untuk promosi secara live pada semua media sosial yang dimiliki serta pelatihan terkait Online Marketing dan Digital Branding. Pada bidang produksi, Tim PKM akan mengimplementasikan konsep ergonomi pada fasilitas pendukung produksi, seperti meja dan kursi pada proses finishing/packing serta kursi untuk pekerja pada proses menjahit. Setelah program berjalan sekitar empat bulan, dapat dilihat bahwa produktivitas Mitra dalam bidang produksi meningkat, dengan menurunnya jumlah cacat produk sekitar 5%. Dalam bidang pemasaran, permintaan produk meningkat sekitar 10% seiring dengan meningkatnya frekuensi pemasaran melalui live streaming.
Pemanfaatan Tempurung Kelapa sebagai Katalis pada Proses Konversi Minyak Curah Menjadi Biodiesel Yustia Wulandari Mirzayanti; Erlinda Ningsih; Zain Lillahulhaq; Zuhdi Ma’sum; Chevy Renova; Yasin Wijaya
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.351

Abstract

Vegetable oil is one of the alternative sources of raw material for fuel oil to produce biodiesel. The conversion reaction process requires the help of a catalyst to break down triglycerides into methyl esters. Therefore, this study aims to determine the performance of catalysts made from coconut shells to convert bulk oil into biodiesel. The catalyst performance is focused on biodiesel's yield parameters through the influence factor of catalyst weight, molar ratio, and %FAME. This research was conducted in three stages, namely (1) catalyst preparation, (2) application of catalyst performance through the conversion process of bulk oil into biodiesel, (3) washing of biodiesel. The first stage was catalyst preparation carried out by utilizing a coconut shell, which was first made into charcoal, then activated using H3PO4 then sulfonated with H2SO4. The second stage was the conversion process of bulk oil into biodiesel using coconut shell catalysts through a transesterification process using variations in the catalyst's weight to bulk oil (0.5; 1; 1.5; 2; and 2.5% wt/wt) and bulk oil molar:methanol ratio (1: 3; 1: 6; and 1: 9). The third stage was the process of washing biodiesel using HCl. Based on this study's results, the best catalyst weight was 2% wt/wt with a molar ratio of 1: 9 resulting in the highest yield of 89% and the FAME of 80.36%.
Pengaruh Variasi Konsentrasi NaOH sebagai Nutrisi pada Performansi Biogas Tipe Portabel Syamsuri; Yustia Wulandari Mirzayanti; Wiwik Widyo Widjajanti; Samuel Kristian Bani
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.353

Abstract

Biogas is a gas fuel produced by anaerobic activity or fermentation of organic materials, including human and animal waste, domestic (household) waste, or anaerobic degradation of organic materials by anaerobic bacteria. In this study, biogas was used as fuel with the addition of NaOH variations to the modified gasoline generator set engine so that it could work to produce electricity. This experiment used variations of 2, 4, 6, 8, and 10% NaOH nutrition with variations in the electric load of 10, 15, 20, 25, 30, 35, 40, 45, and 50 watts. These purposed to determine the performance of electric power, torque, and system efficiency. From the test, it found that the greater load of the lamp, the smaller performance of the electric power produced. The results showed that the greatest electric power was the variation of 2% NaOH nutrition with a lamp load of 10 watts, namely 39.33 watts. In the efficiency testing, the greater electric load system resulted efficiency system tent to be stable. The best system efficiency with 2% NaOH nutrition was compared to other nutritional variations. In testing of torque, the greater electric load torque resulted also greater torque. The greatest torque with 2%, NaOH nutrition compared to other nutritional variations.
Enhancing Industrial Wastewater Oil Removal Through Integrated Coagulation–Flocculation Pretreatment and Dissolved Air Flotation (DAF) Yustia Wulandari Mirzayanti; Purwaningsih, Dian Yanuarita; Ni'am, Achmad Chusnun; Awaludin, Aditya Fikri
Journal of Research and Technology Vol. 10 No. 2 (2024): JRT Volume 10 No 2 Des 2024
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v10i2.1516

Abstract

Oil content in the water that exceeds the threshold can pollute the environment if disposed of directly without waste treatment. This study conducted a case study of engineering waste treatment containing 1% oil using the Dissolve Air Flotation (DAF) method through coagulant and flocculant pre-treatment. The independent variable used in this study is pressure and residence time, where the pressure variable consists of 0.6, 0.8, 1, 1.2, and 1.4 bar, while the residence time variables comprised 5, 15, 30, 45, and 60 minutes. This study obtained the maximum pressure and residence time, namely at a pressure of 1.4 bar and a residence time of 60 minutes; the highest oil removal was 98.32%. Turbidity removal was 92.31% in 1% of engineering waste for engineering destruction.
Analysis of Health Protocol Implementation Through UTAUT (Unified Theory of Acceptance and Use of Technology) Model in Trenggalek DistrictMODEL IN TRENGGALEK DISTRICT Daniati, Reni; Andini, Rizqi Aulia Kusuma; Ni'am, Achmad Chusnun; Utami, Rahayu Putri; Mirzayanti, Yustia Wulandari; Prasetya, Kevin Daffa; Agatha, Marsha Savira
Journal of Research and Technology Vol. 10 No. 2 (2024): JRT Volume 10 No 2 Des 2024
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v10i2.1531

Abstract

The COVID-19 pandemic has introduced significant behavioral changes driven by adopting health protocols known as the 5M measures—mask-wearing, handwashing, maintaining physical distance, limiting mobility, and avoiding crowds. This study evaluates the implementation of the 5M health protocols in Trenggalek and Bendungan Districts, representing urban and rural areas, respectively. Utilizing the Unified Theory of Acceptance and Use of Technology (UTAUT) model, modified with Clean and Healthy Behavior (PHBS) constructs, this research examines community awareness and adherence to 5M protocols. A survey involving 758 respondents from both districts was conducted during the pandemic to assess factors influencing compliance. The findings highlight that social influence through counseling, advertisements, and posters plays a pivotal role in shaping behavioral intentions related to protocol adherence. Furthermore, these intentions directly influence actual behavior, reinforcing sustained compliance with the 5M measures. Notably, urban and rural contexts demonstrated similar patterns, underscoring the universal impact of social influence regardless of geographic setting. This study concludes that strengthening community engagement and targeted social campaigns can enhance public health resilience and preparedness for future pandemics by fostering sustainable health-conscious behavior.
Edukasi dan Pendampingan Pengolahan Limbah Rumah Tangga untuk Meningkatkan Keterampilan Sumber Daya Masyarakat di Kampung Edukasi Sampah, Sekardangan, Kec. Sidoarjo, Kab. Sidoarjo Mirzayanti, Yustia Wulandari; Widjajanti, Wiwik Widyo; Yuliawati, Evi; Syamsuri, Syamsuri; Irawan, Heri
JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Vol 6, No 2 (2022)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jpp-iptek.2022.v6i2.3595

Abstract

Tujuan dari kegiatan PKM ini adalah untuk membantu mitra dalam upaya peningkatan pelayanan fasilitas masyarakat dan keterampilan sumber daya manusia (SDM) pada mitra. Kegiatan ini dilakukan oleh Tim Pengabdian pada Program Kemitraan Masyarakat dengan judul Edukasi dan Pendampingan Pengolahan Limbah Rumah Tangga untuk Meningkatkan Keterampilan Sumber Daya Masyarakat di Kampung Edukasi Sampah, Sekardangan, Kec. Sidoarjo, Kab. Sidoarjo. Lokasi mitra berjarak sekitar 30 km dari Kampus Institut Teknologi Adhi Tama Surabaya (ITATS) dan dapat ditempuh dengan waktu sekitar kurang lebih satu jam dari Kampus ITATS. Permasalahan prioritas mitra adalah: (1) peningkatan fasilitas pelayanan pada pengolahan air limbah rumah tangga, (2) peningkatan fasilitas pelayanan pada pengolahan sampah plastik, (3) perluasan jangkauan jaringan perpustakaan digital, dan (4) peningkatan keterampilan pada SDM mitra. Solusi yang diberikan oleh Tim Pengusul kepada mitra adalah: (1) memberikan teknologi instalasi pengolahan air limbah (IPAL) rumah tangga, (2) memberikan teknologi pengolahan daur ulang limbah atau sampah plastik, (3) memberikan teknologi perluasan jangkauan jaringan untuk menambah fasilitas perpustakaan digital, dan (4) memberikan pelatihan serta pendampingan terkait pengolahan air limbah rumah tangga, pengolahan sampah plastik, dan pelatihan serta pendampingan dalam upaya meningkatkan keterampilan SDM mitra terkait pengolahan air limbah rumah tangga untuk efisiensi penggunaan air, pengolahan daur ulang sampah plastik, perluasan jangkauan jaringan, dan pemilihan saluran internet yang sesuai dengan usia anak-anak yang mendukung perpustakaan digital. Program PKM ini dapat meningkatkan fasilitas pelayanan bagi masyarakat mitra yang dulunya belum ada.
Produksi Etanol Berbahan Baku Molasses Melalui Proses Fermentasi Menggunakan Ragi Roti Yustia Wulandari Mirzayanti; Sugiono .; Reta Kurniayati
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 1, No 1 (2021)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2021.v1i1.2110

Abstract

One of the alternatives and renewable energy that is being developed is ethanol.Ethanol is better known as Gasohol. Molasses can make Gasohol through thesynthesis of molasses fermentation using a yeast starter. This study aims toanalyze how the effect of the addition of baker's yeast, the length of fermentationincubation time on the resulting alcohol content. In addition, the yield obtainedfrom the highest amount of ethanol production in the molasses fermentationprocess. Ethanol production through fermentation synthesis using the help ofmicroorganisms Saccharomyces cerevisiae. Based on the objective review, thevariation used is the amount of baker's yeast, namely 0.1; 0.2; 0.3; 0.4; and 0.5%glucose levels. The fermentation times were 24, 48, 72, 96, and 120 hours (T =30?C and pH = 5). Based on these variations, the highest alcohol productionwas 11%, obtained by adding 0.2% of yeast to the glucose content in the solution.The incubation time is 72 hours. The yield obtained for the highest alcoholcontent is 4.48%
Cobalt-nickel supported on desilicated HZSM-5 for the conversion of Reutealis trisperma (blanco) airy shaw oil to liquid hydrocarbon products Marlinda, Lenny; Rahmi; Aziz, Abdul; Roesyadi, Achmad; Hari Prajitno, Danawati; Mirzayanti, Yustia Wulandari; Al-Muttaqii, Muhammad
Communications in Science and Technology Vol 10 No 1 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.1.2025.1570

Abstract

Desilication/alkaline treatment and metal impregnation were used to create the HZSM-5 catalyst supported by Co-Ni. These catalysts' isotherm patterns combined type I and type IV isotherms. This isotherm pattern showed a hysteresis loop at comparatively higher pressures. The pore size distribution of the mesoporous HZSM-5 catalysts was situated between 6 and 12 nm in size. Its use in the hydrocracking of Reutealis trisperma (Blanco) airy shaw oil (RTO) to produce biofuel was investigated. The results of the catalytic test showed that the hydrocarbon makeup of the biofuel was comparable to that of fuel. In comparison to HZSM-5, the mesoporous Co-Ni/HZSM-5 catalyst enhanced n-paraffin by 46.32 area% and aromatic by 34.18 area% in the hydrocracking of RTO.
Co-Authors Abdul Aziz Achmad Chusnun Ni'am Achmad Roesyadi Ade Julrohiniar Adelia Hanifah Mutiara Retya Adelya Kristia Putri Adhea Sefti Nur Cahyani Adji Moch. Parikesit Agatha, Marsha Savira Agus Budianto Aista Pudji Witari Aji, Saptio Al-Muttaqii, Muhammad Alisa, Ayu Andini, Rizqi Aulia Kusuma Aryoga, Ryan Awaludin, Aditya Fikri Azis Dwi Septianto Chevy Renova Chevy Renova Damai Suhendri Danawati Hari Prajitno Daniati, Reni Devita Sari Dian Yanuarita Purwaningsih Eka Cahya Muliawati Erlinda Ningsih Erlinda Ningsih Erlinda Ningsih Ningsih Erlinda Ningsih, Erlinda Evi Yuliawati Evi Yuliawati Fardiansyah, Muhammad Edo Firman Kurniawansyah Hari Prajitno, Danawati Helvi Marita Indriani Henny Silvia Himawan HERI IRAWAN I Gusti Bagus Wiksuana Irawan, Heri Kartika Udyani Lenny Marlinda M. Puguh Tri Darmawan Maisarah, Siti Mochamad Agil Yogi Parama Mohammad Wafi Wafi Muhammad Subhan Nashih Zuhair Dwi Santoso Parama, Mochamad Agil Yogi Parikesit, Adji Moch. Prasetya, Kevin Daffa Rahmi Reta Kurniayati Risky Fawardi Yuliarta Rizky Cahyaningsih Saiful Arif Samuel Kristian Bani Samuel Kristian Bani Saptio Aji Saputra, Denny Angga Septianto, Azis Dwi Sigit Setiawan Sugiono . Sukma Putri Ayuni Syamsuri SYAMSURI Syamsuri Syamsuri Syamsuri Syamsuri Syamsuri Tanti Irma Nuraini Utami, Rahayu Putri Utamy, Vivi Dwi Vivi Dwi Utamy Wiwik Widyo Widjajanti Yasin Wijaya Yasin Wijaya Zain Lillahulhaq Zakariya, Muhammad Fadkhul Zuhdi Ma’sum Zuhdi Ma’sum