The use of Liquid Smoke as A Substitute for Nitric Acid for Extraction of Amorphous silica from Rice husk through Sol-Gel Route

Self Cite

In this investigation, co-pyrolysis of sugarcane bagasse and sludge palm oil for production of liquid fuel was investigated. A series of pyrolysis experiments was conducted using zeolite-Y synthesized from rice husk silica and aluminum metal through sol-gel route and calcined at different temperatures as catalyst. The pyrolysis experiments were conducted at fixed temperature of 350 o C, and the liquid fuels produced were analyzed using gas chromatography-mass spectrometry (GC-MS) technique for component identification. The results obtained indicate that the main component of the liquid fuels is hydrocarbon, with the highest content of 80% was produced with the use of catalyst calcined at 700 o C. Production of liquid fuels with high hydrocarbon content and practically contain no acids demonstrated that catalyst zeolite-Y synthesized exhibited appreciable selectivity toward formation of hydrocarbons, and simultaneously prevent the formation of acids.

Section: Methodsmentioning

confidence: 99%

Chemical Composition of Liquid Fuel Produced by Co-pyrolysis of Sugarcane Bagasse and Sludge Palm Oil Using Zeolite-Y as Catalyst

Supriyanto¹,

Simanjuntak²,

Pandiangan³

et al. 2018

Self Cite

“…Rice husk silica was obtained using an alkali extraction method, as previously applied 31,32 . Rice husk silica was extracted using an alkali extraction process, adopting the method previously applied.…”

Section: Extraction Of Rice Husk Silicamentioning

confidence: 99%

Influence of Kinetic Variables on Rubber Seed Oil Transesterification Using Bifunctional Catalyst CaO-MgO/SiO2

Pandiangan¹,

Simanjuntak²,

Rilyanti³

et al. 2017

Self Cite

In this study, syntheses of bifunctional catalyst (CaO-MgO/SiO 2 ) with different ratios of CaO: MgO:SiO 2 of 1:1:3 and 1:1:5 were carried out by sol-gel method. The catalysts were subjected to calcination temperatures of 500, 600, 700, 800, 900 o C for 6 h at peak temperatures, and then tested as catalyst in a series of transesterification of rubber seed oil without and with the use of coconut oil as co-reactant. Several kinetic variables of transesterification were also investigated. The results revealed that the catalyst with the composition of CaO-MgO/SiO 2 1:1:5 and subjected to calcination temperature of 800°C functioned as the most active catalyst. The highest percent of conversion 90% was resulted from the experiment with the use of 5% catalyst, 50 mL methanol, 10% co-reactant, temperature of 70 o C and reaction time of 6 hours.

“…Rice husk silica was obtained using an alkali extraction method reported in literatures 22,23 . Typically, a sample of 50 g dried husk was mixed with 500 mL of 1,5% NaOH solution in a beaker glass.…”

Section: Procedures Extraction Of Rice Husk Silicamentioning

confidence: 99%

Hydrocarbon Rich Liquid Fuel Produced by Co-pyrolysis of Sugarcane Bagasse and Rubber Seed Oil Using Aluminosilicates Derived from Rice Husk Silica and Aluminum Metal as Catalyst

Simanjuntak¹,

Sembiring²,

Pandiangan³

et al. 2017

Self Cite

In this investigation, a mixture of sugarcane bagasse and rubber seed oil was subjected to pyrolysis for liquid fuel production, using aluminosilicates with different Si/Al ratios as catalysts prepared from rice husk silica and aluminum metal by electrochemical method. A series of pyrolysis experiments was conducted at the temperature range of 250 to 500 o C, with the main purpose to investigate the effect of the Si/Al ratios of the catalysts on the chemical composition of liquid fuels produced. The liquid fuels produced were analyzed using gas chromatography-mass spectrometry (GC-MS) technique for component identification. The experimental results show that the most intense production of liquid took place at the temperature range of 350 to 480 o C, while at lower temperatures gaseous product emerged as the main product. Analysis of the product using GC-MS technique revealed the presence of a series of compounds in the liquids, and broadly belongs to hydrocarbon, alcohol, ester, ketone, aldehyde, and acid. The results display significant effect of the catalyst composition on the composition of the liquids. The main trend observed is the tendency of increased the hydrocarbon content with decreased the Si/Al ratio of the catalyst, down to the ratio of 2.3 which produced liquid fuel with the highest hydrocarbon content 86%.