Catalytic decomposition of tar derived from wood waste pyrolysis using Indonesian low grade iron ore as catalyst

Wicakso, Doni Rahmat; Sutijan,; Rochmadi, .; Budiman, Arief

doi:10.1063/1.4949316

Cited by 8 publications

(5 citation statements)

References 28 publications

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“…The temperature effect on the distribution coefficient is determined according to the Van't hoff equation [39]. (7) where K is distribution coefficient, H is enthalpy change at the standard condition (J/mol), S is entropy change at the standard condition (J/mol/K) and R is the universal gas constant (J/mol/K). With the value of H and S in the common extraction process both are positive [39].…”

Section: Fig 8 Effect Of Temperature On Yieldmentioning

confidence: 99%

“…Some sources of it has been investigated to develope second generation of biodiesel. These sources are namely: oil palm empty fruit bunches (EFB) [4], palm fatty acid distillate [5], sugarcane baggase [6], wood, vegetables and fruits waste [7,8,9], and non edible seed jatropha, papaya seed [10,11]. Currently the creation of third generation of biodiesel from microalgae lipids becomes the lime light of some researchers [9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimum Extraction of Algae-oil from Microalgae using Hydrodynamic Cavitation

Setyawan¹,

Arief²,

Mulyono³

et al. 2018

IJRER

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The production of microalgae biodiesel is one solution to solve the energy problem in the future, especially in the transportation sector. Some advantages of the development of the production of biodiesel from microalgae is high productivity, food security friendly and global warming problem-solving . The main problem in the production of microalgae biodiesel is the high production cost due to the high cost of lipid extraction. Several studies have been conducted to find a low cost extraction process. In this research, the Nannochloropsis sp. microalgae lipid extraction utilizing hydrodynamic cavitation has been studied. Effects of the concentration of solids, specific energy and time on the extraction have been examined. The study was conducted in a batch with a combined solvent of methanol and hexane. The influence of specific energy given at the same level of cavitation of increasing specific energy would increase the yield where it would be higher at the beginning and remain stable at the end of the process. At the same specific energy and level of cavitation, the value of concentration that provides the lowest extraction energy requirement was 0.105 g/g. The optimum of cavitation levels for the same specific energy and concentration at the value of cavitation number was 0.126. The optimum temperature for the extraction process was 42C. The lowest extraction energy requirement was 16.743 MJ/kg lipid.

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Section: Fig 8 Effect Of Temperature On Yieldmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimum Extraction of Algae-oil from Microalgae using Hydrodynamic Cavitation

Setyawan¹,

Arief²,

Mulyono³

et al. 2018

IJRER

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“…However, their catalytic activity is considerably lower than the activity of catalysts with alkali metals. , Obviously, single catalysts cannot meet the catalytic demands of the gasification process (i.e., high reactivity, stability toward deactivation, and selectivity) due to the complexity of the process. According to current studies, composite catalysts are superior to single-component catalysts in numerous characteristics. − Furthermore, disposable catalysts such as inexpensive and readily available ore (e.g., limestone, dolomite, low-grade iron ore, and limonite) as well as alkali liquor, alkali residue, and black liquor industrial waste − could promote gasification. However, the industrial-scale development of all these catalysts is challenging because of high operating and recovery costs, extensive equipment corrosion, and secondary pollution to the environment.…”

Section: Introductionmentioning

confidence: 99%

“…According to current studies, composite catalysts are superior to single-component catalysts in numerous characteristics. 12−14 Furthermore, disposable catalysts such as inexpensive and readily available ore (e.g., limestone, 15 dolomite, 16 low-grade iron ore, 17 and limonite 18 ) as well as alkali liquor, alkali residue, and black liquor industrial waste 19−22 could promote gasification. However, the industrialscale development of all these catalysts is challenging because of high operating and recovery costs, extensive equipment corrosion, and secondary pollution to the environment.…”

Section: Introductionmentioning

confidence: 99%

Study of Electrochemical Catalytic Coal Gasification: Gasification Characteristics and Char Structure Evolution

Yang

Duan

et al. 2021

ACS Omega

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Electrochemical catalytic coal gasification experiments with Fuxin (FX) coal under a CO 2 atmosphere were conducted to evaluate the effects of power and temperature on coal gasification and char structure evolution during electrochemical catalytic gasification (ECG). When the power was 400 W, with temperature increasing from 800 to 1000 °C, the CO content in the gas products increased by 8.16%, the H 2 content increased by 8.39%, and the CH 4 concentration in the gas products initially increased and then decreased. When the temperature is 900 °C, with power increasing from 0 to 400 W, the CO content in the gas products increased by 58.27%, the H 2 content increased by 81.33%, and the CH 4 concentration in the gas products increased from 1.31 to 2.37%. The gasification reactivity and the concentration of combustible gas generated during ECG were higher than those during common coal gasification. Thermal electrons play important roles in ECG. These electrons could promote ring opening reactions and aromatic compound cracking and inhibit aromatization reactions while increasing the number of oxygen-containing functional groups in char, consequently enhancing the char gasification reactivity.

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“…Another advantage of using microalgae is its lower sulfur content. Microalgae with high lipid content are more suitable when processed into biodiesel or bioethanol, while those with low lipid content are better hydrolyzed into biofuel (Maity et al, 2014;Wicakso et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis between pyrolysis products of <em>Spirulina platensis</em> biomass and its residues

Jamilatun

Budhijanto

Rochmadi

et al. 2019

Int. J. Renew. Energy Dev.

Self Cite

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Today’s needs of energy are yet globally dominated by fossil energy sources, causing the depletion of non-renewable energy. Alternatively, a potential substitute is the energy of biomass. Spirulina platensis (SP) is a microalgae biomass which, if extracted, will produce solid waste called Spirulina platensis residue (SPR). This research explores the pyrolysis product, produced within the range of 300 – 600 ºC, from the pyrolysis of SP and SPR using fixed bed reactors. The influence of temperature on pyrolysis product’s yield and characteristics are investigated by using mass balance method and gas chromatography – mass spectrometry (GC-MS) technique, respectively. The results from mass balance method present an optimum pyrolysis temperature of 550 ºC to obtain the desired liquid product of bio-oil, presenting the percentage of 34.59 wt.% for SP and 33.44 wt.% for SPR case. Additionally, with the increasing temperature, the char yield decreases for about 30 wt.% and the yield of gas seems to sharp increase from 550 to 600 ºC. These tendencies are both applied for SP and SPR source pyrolysis product. Interestingly, the benefit use as fossil fuel substitute might be derived, thanks to high HHV at the bio-oil product (32.04 MJ/kg for SP and 25.70 MJ/kg for SPR) and also at the char product with of 18.85-26.12 MJ/kg for both cases. The additional benefit come from the high content of C in its char product (50.31 wt.% for SPR and 45.26 wt.% for SP) that might be able to be used as an adsorbent, soil softener or other uses in the pharmaceutical field. ©2019. CBIORE-IJRED. All rights reserved

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Catalytic decomposition of tar derived from wood waste pyrolysis using Indonesian low grade iron ore as catalyst

Cited by 8 publications

References 28 publications

Optimum Extraction of Algae-oil from Microalgae using Hydrodynamic Cavitation

Optimum Extraction of Algae-oil from Microalgae using Hydrodynamic Cavitation

Study of Electrochemical Catalytic Coal Gasification: Gasification Characteristics and Char Structure Evolution

Comparative analysis between pyrolysis products of <em>Spirulina platensis</em> biomass and its residues

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