scholarly journals Evaluation for the Production of Bio-Carbon and Bio-Oil through a Combined Process of Gasification and Slow Pyrolysis of the Organic Waste Fraction

2021 ◽  
Vol 56 (3) ◽  
pp. 394-404
Author(s):  
C. M. Góngora ◽  
C. Rivera ◽  
A. López ◽  
F. Mesa ◽  
A. J. Aristizábal
Keyword(s):  
Large Scale ◽  
Fixed Bed ◽  
Previous Treatment ◽  
Production Performance ◽  
Slow Pyrolysis ◽  
Three Samples ◽  
Bio Oil ◽  
Two Factors ◽  
Thermochemical Processes ◽  
Cylindrical Reactor

The management of vast amounts of urban solid waste is daily. The population growth must create diligent politics that mitigate the impacts created by the increased demand for energy and basic needs. This research aimed to analyze biocarbon and bio-oil production performance through the combination of gasification and slow pyrolysis using a cylindrical reactor with a fixed bed. The residues were collected from the market square of “La Satélite” located in Florencia-Caquetá, and the organic fraction was separated without any previous treatment. For this, an experimental design was randomly created with two factors: 6 work temperatures for the reactor (150, 250, 350, 450, 550, 600°C) and three samples of residues (5, 10 and 15 kg), for a total of 18 treatments and three repetitions. The results were analyzed through analysis of variance (ANOVA), obtaining the highest biomass production with 150°C and 15kg of residue and the highest amount of bio-oil with the combination of 5kg of residue with 150°C. The results demonstrate that combining these two thermochemical processes (gasification and slow pyrolysis) is an efficient and sustainable way to treat solid residues that should be implemented on a large scale.

Characteristics and potential values of bio-oil, syngas and biochar derived from Salsola collina Pall. in a fixed bed slow pyrolysis system

2016 ◽  
Vol 220 ◽  
pp. 378-383 ◽  
Author(s):  
Yan Yue ◽  
Qimei Lin ◽  
Muhammad Irfan ◽  
Qun Chen ◽  
Xiaorong Zhao
Keyword(s):  
Fixed Bed ◽  
Slow Pyrolysis ◽  
Bio Oil

Derivation of optimum operating conditions for the slow pyrolysis of Mahua press seed cake in a fixed bed batch reactor for bio–oil production

2017 ◽  
Vol 5 (4) ◽  
pp. 4051-4063 ◽  
Author(s):  
Kotaiah Naik Dhanavath ◽  
Kalpit Shah ◽  
Satyavathi Bankupalli ◽  
Suresh K. Bhargava ◽  
Rajarathinam Parthasarathy
Keyword(s):  
Batch Reactor ◽  
Fixed Bed ◽  
Oil Production ◽  
Operating Conditions ◽  
Optimum Operating ◽  
Slow Pyrolysis ◽  
Seed Cake ◽  
Bio Oil

Pyrolysis Characteristics and Kinetics of Cassava Residues

2014 ◽  
Vol 953-954 ◽  
pp. 325-329
Author(s):  
Jin Wei Jia ◽  
Di Yang ◽  
He Long Hui ◽  
Xing Min Fu ◽  
Lu Liu ◽  
...  
Keyword(s):  
Activation Energy ◽  
Kinetic Parameters ◽  
Fixed Bed ◽  
The Other ◽  
Fixed Bed Reactor ◽  
Biomass Feedstock ◽  
Pyrolysis Characteristics ◽  
Three Samples ◽  
Bio Oil ◽  
Kinetics Of

The aims of this work were to investigate the influence of feedstock properties of different part of cassava residues (cassava rhizome (CR), cassava stalk (CS) and cassava leaf (CL)) and operating temperatures on the pyrolysis characteristics and the kinetic parameters. Pyrolysis experiments of three selected biomass feedstock were conducted using a fixed-bed reactor. It was shown that the bio-oil yield of cassava stalk reached the maxima at 600°C, and the char yield reduced with the temperature, whereas the gas yield increased with temperature. The cassava rhizome presented higher thermochemical reactivity than the other samples. The activation energy of cassava stalks was 37.57 kJ / mol and that of cassava rhizome (39.42 kJ / mol) increased slightly. The activation energy of cassava leaf (22.85 kJ / mol) was lowest of the three samples.

Slow Pyrolysis of Cystoseira Barbata Brown Macroalgae

2018 ◽  
Vol 69 (3) ◽  
pp. 553-556 ◽  
Author(s):  
Doinita Roxana Cioroiu ◽  
Oana Cristina Parvulescu ◽  
Tanase Dobre ◽  
Cristian Raducanu ◽  
Claudia Irina Koncsag ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Bet Surface Area ◽  
Heat Flow Rate ◽  
Slow Pyrolysis ◽  
Process Factor ◽  
Bed Temperature ◽  
Cystoseira Barbata ◽  
Bio Oil

Slow pyrolysis of algal biomass of Cystoseira barbata was performed in a fixed bed reactor using carbon dioxide as a sweeping gas and a reactant in the process. Pyrolysis products consisted of a biochar, a bio-oil, and pyrolytic gases. According to a 23 factorial experiment, 8 tests were conducted for 1 hr at two levels of each process factor, i.e., specific heat flow rate (7540, 9215 W/m3), carbon dioxide superficial velocity (1.3, 2.6 cm/s), and bulk density of fixed bed biomass (221, 332 kg/m3). Correlations between these factors and final process responses in terms of mean bed temperature (461-663 oC), biochar yield (15.2-26.7%), bio-oil yield (29.9-34.8%), and BET surface area of biochar (45.17-91.12 m2/g) were established.

scholarly journals Pyrolysis of Lemon Peel Waste in a Fixed-bed Reactor and Characterization of Innovative Pyrolytic Products

2021 ◽  
Author(s):  
Samira ABIDI ◽  
Aïda Ben Hassen Trabelsi ◽  
Nourhène Boudhrioua Mihoubi
Keyword(s):  
Large Scale ◽  
Fixed Bed ◽  
Chemical Characterization ◽  
Calorific Value ◽  
Economic Benefits ◽  
Fixed Bed Reactor ◽  
Engine Fuel ◽  
Ftir Characterization ◽  
Bio Oil ◽  
Pharmaceutical Industries

Abstract The pyrolysis of LPW was carried out in a laboratory fixed-bed reactor at final temperature of 300°C, 400°C and 500°C with an incremental heating rate of 10°C/min, under N2 atmosphere. The maximum yields of bio-oil, biochar and gas were 16.66 wt.% (at 400°C), 66.89 wt.% (300°C) and 54.6 wt.% (500°C), respectively. The recovered biochar FTIR characterization reveals that it is a promising precursor to produce carbon materials, biofertilizer and for solid fuel applications. The bio-oil chemical characterization (GC-MS and FTIR analyzes) shows its richness with innovative compounds such as squalene, d-limonene, ß-Sitosterol and phenol, suitable for applications agriculture, biochemical and pharmaceutical industries. The pyrolytic oil presents also good properties, suitable for its use as an engine fuel or as a potential source for synthetic fuels. The recovered pyrolytic gas has a maximum calorific value around 12 MJ/kg with an average composition of CO (up to 75.87 vol.%), of CH4 (up to 5.25 vol.%) and of CnHm (up to 1.48 vol.%). The results could be applied by citrus farmers and agri-food industrials for large scale application to ensure a sustainable waste management of their citrus by-products and to guarantee economic benefits.

scholarly journals Valorization of Vine Prunings by Slow Pyrolysis in a Fixed-Bed Reactor

Processes ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 37
Author(s):  
Suzana Ioana Calcan ◽  
Oana Cristina Pârvulescu ◽  
Violeta Alexandra Ion ◽  
Cristian Eugen Răducanu ◽  
Liliana Bădulescu ◽  
...  
Keyword(s):  
Fixed Bed ◽  
Pyrolysis Product ◽  
Fixed Bed Reactor ◽  
Slow Pyrolysis ◽  
23 Factorial Design ◽  
Bed Temperature ◽  
Bio Oil ◽  
Mean Size ◽  
Ft Ir ◽  
Water Holding

The paper aimed at studying the slow pyrolysis of vine pruning waste in a fixed bed reactor and characterizing the pyrolysis products. Pyrolysis experiments were conducted for 60 min, using CO2 as a carrier gas and oxidizing agent. The distribution of biochar and bio-oil was dependent on variations in heat flux (4244–5777 W/m2), CO2 superficial velocity (0.004–0.008 m/s), and mean size of vegetal material (0.007–0.011 m). Relationships among these factors and process performances in terms of yields of biochar (0.286–0.328) and bio-oil (0.260–0.350), expressed as ratio between the final mass of pyrolysis product and initial mass of vegetal material, and final value of fixed bed temperature (401.1–486.5 °C) were established using a 23 factorial design. Proximate and ultimate analyses, FT-IR and SEM analyses, measurements of bulk density (0.112 ± 0.001 g/cm3), electrical conductivity (0.55 ± 0.03 dS/m), pH (10.35 ± 0.06), and water holding capacity (58.99 ± 14.51%) were performed for biochar. Water content (33.2 ± 1.27%), density (1.027 ± 0.014 g/cm3), pH (3.34 ± 0.02), refractive index (1.3553 ± 0.0027), and iodine value (87.98 ± 4.38 g I2/100 g bio-oil) were measured for bio-oil. Moreover, chemical composition of bio-oil was evaluated using GC-MS analysis, with 27 organic compounds being identified.

RANCANG BANGUN PERANGKAT EKSPERIMENTASI PROSES PIROLISIS BIOMASA GELOMBANG MIKRO

2013 ◽  
Vol 14 (2) ◽  
Author(s):  
Noor Fachrizal
Keyword(s):  
Large Scale ◽  
Continuous Model ◽  
Biomass Energy ◽  
Scale Model ◽  
Small Scale ◽  
Laboratory Apparatus ◽  
Liquid Form ◽  
Large Scale Model ◽  
Bio Oil ◽  
Pyrolysis Of Biomass

Biomass such as agriculture waste and urban waste are enormous potency as energy resources instead of enviromental problem. organic waste can be converted into energy in the form of liquid fuel, solid, and syngas by using of pyrolysis technique. Pyrolysis process can yield higher liquid form when the process can be drifted into fast and flash response. It can be solved by using microwave heating method. This research is started from developing an experimentation laboratory apparatus of microwave-assisted pyrolysis of biomass energy conversion system, and conducting preliminary experiments for gaining the proof that this method can be established for driving the process properly and safely. Modifying commercial oven into laboratory apparatus has been done, it works safely, and initial experiments have been carried out, process yields bio-oil and charcoal shortly, several parameters are achieved. Some further experiments are still needed for more detail parameters. Theresults may be used to design small-scale continuous model of productionsystem, which then can be developed into large-scale model that applicable for comercial use.

scholarly journals Bio-Oil Characterizations of Spirulina Platensis Residue (SPR) Pyrolysis Products for Renewable Energy Development

2020 ◽  
Vol 849 ◽  
pp. 47-52
Author(s):  
Siti Jamilatun ◽  
Aster Rahayu ◽  
Yano Surya Pradana ◽  
Budhijanto ◽  
Rochmadi ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Spirulina Platensis ◽  
Pyrolysis Temperature ◽  
Renewable Energy Sources ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Oil Yield ◽  
Optimum Temperature ◽  
Pyrolysis Products ◽  
Bio Oil

Nowadays, energy consumption has increased as a population increases with socio-economic developments and improved living standards. Therefore, it is necessary to find a replacement for fossil energy with renewable energy sources, and the potential to develop is biofuels. Bio-oil, water phase, gas, and char products will be produced by utilizing Spirulina platensis (SPR) microalgae extraction residue as pyrolysis raw material. The purpose of this study is to characterize pyrolysis products and bio-oil analysis with GC-MS. Quality fuel is good if O/C is low, H/C is high, HHV is high, and oxygenate compounds are low, but aliphatic and aromatic are high. Pyrolysis was carried out at a temperature of 300-600°C with a feed of 50 grams in atmospheric conditions with a heating rate of 5-35°C/min, the equipment used was a fixed-bed reactor. The higher the pyrolysis temperature, the higher the bio-oil yield will be to an optimum temperature, then lower. The optimum temperature of pyrolysis is 550°C with a bio-oil yield of 23.99 wt%. The higher the pyrolysis temperature, the higher the H/C, the lower O/C. The optimum condition was reached at a temperature of 500°C with the values of H/C, and O/C is 1.17 and 0.47. With an increase in temperature of 300-600°C, HHV increased from 11.64 MJ/kg to 20.63 MJ/kg, the oxygenate compound decreased from 85.26 to 37.55 wt%. Aliphatics and aromatics increased, respectively, from 5.76 to 36.72 wt% and 1.67 to 6.67 wt%.

Sign in / Sign up

Export Citation Format

Share Document