Biodiesel purification using biomass-based adsorbent manufactured from delignified olive cake residues

Sandouqa, Arwa; Al-Shannag, Mohammad; Al-Hamamre, Zayed

doi:10.1016/j.renene.2019.11.009

Cited by 18 publications

(7 citation statements)

References 31 publications

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“…As discussed in Section 3.3, the transesterification of GTW with methanol resulted in some impurities being present in the crude biodiesel. The residues such as FFAs and soap will reduce the fuel quality, which will subsequently affect the engine performance when used in vehicles 52 . To meet the biodiesel standard specification EN14214, dry purification was applied using a bio‐based adsorbent from woodchip biomass with an iodine number of 259.43 mg g −1 .…”

Section: Resultsmentioning

confidence: 99%

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Biodiesel from high‐acid‐value grease trap waste: process optimization and purification using bio‐based adsorbent

Jariah

Roslan

Hassan

et al. 2022

Biofuels Bioprod Bioref

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Material with negative value such as grease trap waste appears to be a cost‐effective feedstock for biodiesel production since it can be collected at little to no charge. Owing to its high lipid content, fatty acid methyl ester can be produced from grease trap waste via a two‐step production process with methanol, using potassium hydroxide as the catalyst. However, there are several process parameters that could affect the yield of the fatty acid methyl ester produced. In this study, the optimum conditions for biodiesel production were 6:1 methanol‐to‐oil molar ratio, 1.5 wt% potassium hydroxide loadings, a 40 °C reaction temperature and a 2 h reaction time, resulting in a fatty acid methyl ester yield of 87%. Further purification using 0.05 g L−1 of biobased adsorbent from woodchip biomass for a 1 h residence time at 25 °C yielded the highest removal of free fatty acid and soap at 98.2 and 67.9%, respectively. This study not only demonstrates the potential of grease trap waste as a bioresource for the production of biodiesel, but also proves an interesting and additional use of bio‐based adsorbent from woodchip biomass as an effective tool in biodiesel purification since the quality of biodiesel produced within the standard EN14214. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

“…In comparison with other studies, as shown in Table 3, the purification yields of biodiesel varied depending on the feedstock used and the bio‐based adsorbent used. From the study conducted by Sandouqa et al 52 . and Ortiz‐Lechuga et al 57 .…”

Section: Resultsmentioning

confidence: 99%

Biodiesel from high‐acid‐value grease trap waste: process optimization and purification using bio‐based adsorbent

Jariah

Roslan

Hassan

et al. 2022

Biofuels Bioprod Bioref

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“…Di antara ketiga metode ini, modifikasi dengan reagen kimia telah lebih sering digunakan untuk meningkatkan luas permukaan adsorben, menyiapkan adsorben dengan proporsi pori mikro, meso, dan makro yang ditentukan dan karenanya meningkatkan kapasitas adsorpsi. Selanjutnya, modifikasi kimia dan morfologi dan aktivasi biosorben, serta isolasi lignin dan hemiselulosa dari biomassa lignoselulosa meningkatkan gugus karboksilat yang efektif dan meningkatkan efisiensi adsorpsi (Sandouqa et al, 2020).…”

Section: Pendahuluanunclassified

“…Saat ini, "downstream processing" dapat menyumbang 60-80% dari total biaya proses. Pemisahan dan pemurnian biodiesel yang tidak efektif menyebabkan masalah mesin diesel yang parah seperti penyumbatan filter, kokas pada injektor, menghasilkan lebih banyak endapan karbon, keausan mesin yang berlebihan, ring oli lengket, engine knocking, thickening dan pembentukan gel pada oli pelumas (Sandouqa et al, 2020).…”

Section: Pendahuluanunclassified

Sintesis Zeolit X dari Fly Ash Boiler Pabrik Kelapa Sawit sebagai Adsorben Pemurnian Biodiesel

Oktavianty

2022

Pencerah

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Abstrak Fly ash boiler pabrik kelapa sawit saat ini menjadi limbah padat yang belum banyak pemanfaatannya. Fly ash tersebut memiliki kandungan silika yang tinggi dimana dapat dimanfaatkan sebagai adsorben. Tujuan dari penelitian ini adalah untuk memproduksi zeolite X dari fly ash boiler pabrik kelapa sawit sebagai adsorben pada pemurnian Biodiesel. Saat ini teknologi pemurnian biodiesel masih didominasi dengan menggunakan pencucian dengan air (wet washing) dimana mengakibatkan limbah cair yang dihasilkan tinggi, sehingga perlu diterapkan teknologi dry washing yang meminimalisir limbah cair serta meningkatkan efisiensi waktu pemurnian. Metode penelitian ini menggunakan metode Response Surface Methodology dengan desain eksperimen berupa Central Composite Design yang terdiri atas 3 faktor yaitu faktor konsentrasi H2SO4, suhu dan waktu kalsinasi adsorben. Pengolahan data dilakukan dengan bantuan software Design Expert 12.0. Tahapan pembuatan adsorben ini meliputi pretreatment fly ash, aktivasi fly ash menjadi adsorben dengan menggunakan larutan asam sulfat (5; 7,5; 10 N), pada suhu 60 °C selama 1 jam, lalu dioven pada suhu 110 °C selama 1 jam untuk selanjutnya dilakukan kalsinasi (T: 500, 600, 700 °C; T: 2, 3, 4 jam). Adsorben yang dihasilkan digunakan pada pemurnian biodiesel dengan metode dry washing, analisis XRD dan BET untuk karakterisasi adsorben dan analisis GC-MS pada biodiesel yang dihasilkan. Dari hasil analisis didapatkan bahwa kadar metil ester biodiesel paling optimal sebesar 67,58% dihasilkan pada sampel dengan variabel konsentrasi H2SO4 7,5 N, suhu kalsinasi 600°C dan waktu kalsinasi 3 jam. Adsorben yang dihasilkan adalah zeolite X yang memiliki luas permukaan 72 m2/g sebelum aktivasi dan 98 m2/g setelah aktivasi.

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“…There are very limited studies in the literature on biodiesel production from olive oil [35,[56][57][58][59][60][61][62][63][64]. One of the main reasons for this situation is the high cost of olive oil.…”

Section: Introductionmentioning

confidence: 99%

Determination of optimum parameters for esterification in high free fatty acid olive oil and ultrasound-assisted biodiesel production

Söyler

Balki

Sayın

2021

Biomass Conv. Bioref.

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In this study, biodiesel was produced from high free fatty acid (FFA) oil obtained from waste olives, whose food quality deteriorated by falling from the tree to the ground. The FFA value of the oil obtained from waste olives was determined as 23% by titration method. In order to produce biodiesel with high conversion efficiency, esterification process was carried out to reach at least 1% FFA value in the first stage of the study. Acid esterification experiments were designed according to Taguchi's L 16 (4 2 2 1 ) orthogonal array. The amount of sulfuric acid catalyst, methanol ratio, and mixing speed were taken as the test variables for the esterification process. For the lowest FFA value, optimum test parameters were determined using the signal-to-noise (S/N) ratio. In the biodiesel production stage, ultrasound-assisted transesterification method was preferred in terms of high conversion efficiency and short reaction duration. According to the results, it was determined that the optimum reaction conditions in the esterification process were 25% by weight acid catalyst (according to the weight of the FFA in the oil), 22:1 methanol molar ratio in terms of fatty acids, and 400 rpm mixing speed. At these reaction conditions, the FFA of the oil was reduced from 23 to 0.608% in a single step. In the ultrasound-assisted process, Waste olive oil methyl ester (WOOME) conversion yield of 98.7% was achieved in a reaction time of 10 min. The fuel properties of WOOME (also called biodiesel) were determined to be within the EN 14214 standard. As a result, optimization was made to minimize the use of alcohol and catalyst in the acid esterification process. Also, time and energy savings were achieved in biodiesel production with ultrasound-assisted.

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Biodiesel purification using biomass-based adsorbent manufactured from delignified olive cake residues

Cited by 18 publications

References 31 publications

Biodiesel from high‐acid‐value grease trap waste: process optimization and purification using bio‐based adsorbent

Biodiesel from high‐acid‐value grease trap waste: process optimization and purification using bio‐based adsorbent

Sintesis Zeolit X dari Fly Ash Boiler Pabrik Kelapa Sawit sebagai Adsorben Pemurnian Biodiesel

Determination of optimum parameters for esterification in high free fatty acid olive oil and ultrasound-assisted biodiesel production

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