SYNTHESIS OF Ni/MESOPOROUS SILICA-ALUMINA USING SIDOARJO MUD AND BOVINE BONE GELATIN TEMPLATE FOR HYDROCRACKING OF WASTE LUBRICANT

Trisunaryanti, Wega; Falah, Iip Izul; Prihandini, D. R .; Marsuki, Muhammad Fajar

doi:10.31788/rjc.2019.1235297

Cited by 5 publications

(5 citation statements)

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“…The amide-I band is the main secondary protein structure to be observed using infrared spectroscopy. 27,50 The Amide-I peaks are formed by a combination of C=O stretching vibrations, hydrogen bonds coupled with contributions from CN stretching, CCN deformations, and in-plane NH bending. 51 The exact location of the Amida-I peak is determined by hydrogen bonds and protein structure conformation.…”

Section: Organoleptic Propertiesmentioning

confidence: 99%

Preparation and Characterization of Goatskin Gelatin as Halal Alternative to Bovine Gelatin

Bahar¹,

Kusumawati²,

Muslim³

2020

RJC

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Goatskin gelatin (GSG) produced with and without neutralization using hydrochloric acid 0,1 N and different extraction temperatures have been prepared. The physicochemical, mechanical and organoleptic properties are characterized and compared as an alternative to bovine skin gelatin. Application of neutralization using HCl 0.1 N with longest neutralization time (25 minutes) has significantly decreased water content (11.60% to 5.00%), pH levels (7.44 to 6.06), viscosity (35.0 mps to 8.8 mps), and gel strength (0 bloom-75 bloom), while ash content and yield increased, each was 2.01% to 2.28% and 8.95% to 10.41%. There was no significant change in the organoleptic properties of gelatin. Meanwhile, the combination of a specific extraction temperature increase (64 °C and 68 °C) and longest neutralization time has increased gelatin yield (5.95% to 10.41%), water content (3.09% to 7.63%) as well as viscosity (7.5 mps to 8.8 mps), and decreased ash content (3.81% to 2.28%), pH level (6.52 to 6.06) also gel strength (218.66 bloom to 20.0 bloom). It is also not found changes in organoleptic properties in this condition, especially taste and vapor. Nevertheless, brighter colors (higher L* values) in goatskin gelatin were produced from moderate neutralization time and extraction temperatures.

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Section: Organoleptic Propertiesmentioning

confidence: 99%

Preparation and Characterization of Goatskin Gelatin as Halal Alternative to Bovine Gelatin

Bahar¹,

Kusumawati²,

Muslim³

2020

RJC

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“…The metal content of the samples was analyzed by X-ray Fluorescence (XRF, PANalytical MiPal 4). In general, the absorption band (Si-OH) and siloxane groups (Si it can be repeated the application of silica extraction methods according to what has been previous researchers 17,18 . The interpretation of the FTIR result shows silica successfully extracted from the mud as it had a functional group typical of silica.…”

Section: Detection Methodsmentioning

confidence: 99%

SYNTHESIS OF Co-NH2/MESOPOROUS SILICA BIFUNCTIONAL CATALYST USING SIDOARJO MUD AND BOVINE BONE GELATIN TEMPLATE FOR CONVERSION OF USED COOKING OIL INTO BIOFUEL

Trisunaryanti¹,

Triyono²,

Fatmawati³

2020

RJC

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Synthesis of Co-NH 2 /mesoporous silica bifunctional catalyst for conversion of used cooking oil into biofuel was carried out. Synthesis of mesoporous silica (MS) was done by the hydrothermal method using silica from Sidoarjo mud and gelatin from bovine bone as a template. Weight ratio variation of silica/gelatin was 4, 6, and 8 produced MS4, MS6, and MS8 respectively characterized by FTIR. The MS with minimum gelatin content after calcination (MS8) was identified using FTIR, TEM, and SAA. The impregnation of Co into the MS8 was done by the wet impregnation method and the Co/MS8 catalyst was analyzed using XRF and acidity test with NH 3 vapor adsorption. Functionalization of NH 2 into the MS8 and Co/MS8 was done by the grafting method and the products were characterized using FTIR. The catalytic activity test in used cooking oil hydrocracking was done by thermal (without catalyst), physical mixture of Co/MS8 and NH 2 /MS8 catalyst, and Co-NH 2 /MS8 bifunctional catalyst. The hydrocracking liquid products were investigated by GC-MS. The MS8 had a specific surface area of 666.76 m 2 g -1 , a pore diameter of 4.9 nm, and a pore volume of 0.46 cm 3 g -1 . The Co-NH 2 /MS8 bifunctional catalyst produced the highest liquid product of 97.62 wt.% in the hydrocracking of used cooking oil with selectivity for gasoline and diesel fraction of 3.02 and 46.86 wt.%.

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“…Mo metal has a role in deoxygenation reactions for acting as a Brønsted acid side that can activate C-O [17][18]. Mo metal can also be used for catalytic processes as it has a single electron d orbital functioning as a Brønsted acid as a hydrogen breaker (homolytic) and an empty p orbital as Lewis acid, which binds the hydrogen [19]. For having a halffull d orbital, Mo metal is a metal that has stable electrons.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Mo-impregnated mordenite catalysts for the conversion of refined kernel palm oil into bioavtur

Trisunaryanti,

Triyono,

Wijaya

et al. 2023

CST

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The research aims to study the effects of Mo metal embedded on H-Mordenite on its activity and selectivity of hydrodeoxygenation (HDO) for Refined Palm Kernel Oil (RPKO) into bioavtur. The RPKO was obtained from the results of degumming and bleaching process of palm kernel oil and then analyzed using Gas Chromatography-Mass Spectrometer (GC-MS). The impregnation of Mo metal was carried out by spraying using an ammonium heptamolybdate precursor solution ((NH4)6Mo7O24•4H2O) with an initial Mo metal content of 5, 10, and 15wt% of H-Mordenite to produce 5-Mo/Mor, 10-Mo/Mor, and 15-Mo/Mor. The 15-Mo/Mor catalyst produced the highest amount of liquid product (46.08wt%) with bioavtur yield of 43.19wt%. The usability test showed that 15-Mo/Mor catalyst still produced a good performance after three times of use in the RPKO feed HDO with the second and third run test liquid product of 34.82 and 46.14wt% respectively with bioavtur yield of 32.58 and 43.45wt%, respectively.

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SYNTHESIS OF Ni/MESOPOROUS SILICA-ALUMINA USING SIDOARJO MUD AND BOVINE BONE GELATIN TEMPLATE FOR HYDROCRACKING OF WASTE LUBRICANT

Cited by 5 publications

References 0 publications

Preparation and Characterization of Goatskin Gelatin as Halal Alternative to Bovine Gelatin

Preparation and Characterization of Goatskin Gelatin as Halal Alternative to Bovine Gelatin

SYNTHESIS OF Co-NH2/MESOPOROUS SILICA BIFUNCTIONAL CATALYST USING SIDOARJO MUD AND BOVINE BONE GELATIN TEMPLATE FOR CONVERSION OF USED COOKING OIL INTO BIOFUEL

Preparation of Mo-impregnated mordenite catalysts for the conversion of refined kernel palm oil into bioavtur

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