Thermochemical Conversion: Bio-Oil and Syngas Production

2019 ◽  
pp. 251-267 ◽  
Author(s):  
Karthiga Devi Guruviah ◽  
Chozhavendhan Sivasankaran ◽  
Balasubramaniyan Bharathiraja
Keyword(s):  
Thermochemical Conversion ◽  
Syngas Production ◽  
Bio Oil

scholarly journals Experimental Investigation on Energy Recovery System for Continuous Biochar Production System

2020 ◽  
pp. 300-310
Author(s):  
Laleet Jawale ◽  
N. L. Panwar ◽  
B. L. Salvi ◽  
Sudhir Jain ◽  
Deepak Sharma ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Production System ◽  
Energy Recovery ◽  
Crop Residues ◽  
Thermochemical Conversion ◽  
Waste Biomass ◽  
Energy Recovery System ◽  
Syngas Production ◽  
Bio Oil ◽  
Recovery System

Fossilfuel requirement is the necessity for fulfilling the global energy needs, which is increasing day by day due to this it will drain in future. Bio-energy became as one of the vital alternatives to replace fossil fuel. Thermochemical conversion of biomass for obtaining the bioenergy is getting more popular in the recent time. In the present study, slow pyrolysis is used for bio-energy production from the waste biomass available in the form of crop residues of Groundnut Shell (GS), Chana Straw (CS) and Wheat Straw (WS) using the developed continuous biochar production system (Pratap Kiln) to produce biochar. An energy recovery system consisting of cooling chamber was developed to recover the bio-oil from the waste flue gas (syngas). The pyrolysis of selected biomass was carried out at 450°C and residence time of about 4 min. The yield of biochar and bio-oil and syngas properties were determined. The maximum biochar yield was found in CS feedstock as 35% followed by WS and GS, i.e. 33% and 29%, respectively. The bio-oil recovery in GS, CS and WS was 31%, 26% and 30% respectively, whereas the syngas production was 40%, 39% and 37% respectively.

Evaluation of Polymer Compatibility with Bio-oil Produced from Thermochemical Conversion of Biomass

2015 ◽  
Vol 29 (12) ◽  
pp. 7993-7997 ◽  
Author(s):  
Martin R. Haverly ◽  
Lysle E. Whitmer ◽  
Robert C. Brown
Keyword(s):  
Thermochemical Conversion ◽  
Bio Oil ◽  
Polymer Compatibility

Combined steam/dry reforming of bio-oil for H2/CO syngas production with blast furnace slag as heat carrier

Energy ◽  
2020 ◽  
Vol 200 ◽  
pp. 117481 ◽  
Author(s):  
Huaqing Xie ◽  
Rongquan Li ◽  
Zhenyu Yu ◽  
Zhengyu Wang ◽  
Qingbo Yu ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Heat Carrier ◽  
Blast Furnace Slag ◽  
Dry Reforming ◽  
Syngas Production ◽  
Bio Oil ◽  
Furnace Slag

scholarly journals Influence of Pyrolysis Temperature on Product Distribution and Characteristics of Anaerobic Sludge

Energies ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 79
Author(s):  
Muhammad Usman Hanif ◽  
Mohammed Zwawi ◽  
Sergio C. Capareda ◽  
Hamid Iqbal ◽  
Mohammed Algarni ◽  
...  
Keyword(s):  
Pyrolysis Temperature ◽  
Product Distribution ◽  
Biofuel Production ◽  
Thermochemical Conversion ◽  
Anaerobic Sludge ◽  
Cow Dung ◽  
High Heating Value ◽  
Bio Oil ◽  
Different Temperatures ◽  
Combustible Gases

Pyrolysis of anaerobically digested sludge can serve as an efficient biomass for biofuel production. Pyrolysis produces products like char, bio-oil, and combustible gases by thermochemical conversion process. It can be used for sludge treatment that decreases sludge disposal problems. Sludge produced from anaerobic co-digestion (microalgae, cow dung, and paper) waste has high carbon and hydrogen content. We investigated the candidacy of the anaerobic sludge having high heating value (HHV) of 20.53 MJ/kg as a reliable biomass for biofuels production. The process of pyrolysis was optimized with different temperatures (400, 500, and 600 °C) to produce high quantity and improved quality of the products, mainly bio-oil, char, and gas. The results revealed that with the increase in pyrolysis temperature the quantity of char decreased (81% to 55%), bio-oil increased (3% to 7%), and gas increased (2% to 5%). The HHV of char (19.2 MJ/kg), bio-oil (28.1 MJ/kg), and gas (18.1 MJ/kg) were predominantly affected by the amount of fixed carbon, hydrocarbons, and volatile substance, respectively. The study confirmed that the anaerobic sludge is a promising biomass for biofuel production and pyrolysis is an efficient method for its safe disposal.

scholarly journals A Comprehensive Literature Review of Thermochemical Conversion of Biomass for Syngas Production and Associated Challenge

2019 ◽  
Vol 38 (2) ◽  
pp. 495-512
Author(s):  
Ghulamullah Maitlo ◽  
Rasool Bux Mahar ◽  
Zulfiqar Ali Bhatti ◽  
Imran Nazir
Keyword(s):  
Fossil Fuels ◽  
Fixed Bed ◽  
Biomass Gasification ◽  
Gaseous Product ◽  
Gas Production ◽  
Thermochemical Conversion ◽  
Producer Gas ◽  
Syngas Production ◽  
Gasification Process

The interest in the thermochemical conversion of biomass for producer gas production since last decade has increased because of the growing attention to the application of sustainable energy resources. Application of biomass resources is a valid alternative to fossil fuels as it is a renewable energy source. The valuable gaseous product obtained through thermochemical conversion of organic material is syngas, whereas the solid product obtained is char. This review deals with the state of the art of biomass gasification technologies and the quality of syngas gathered through the application of different gasifiers along with the effect of different operating parameters on the quality of producer gas. Main steps in gasification process including drying, oxidation, pyrolysis and reduction effects on syngas production and quality are presented in this review. An overview of various types of gasifiers used in lignocellulosic biomass gasification processes, fixed bed and fluidized bed and entrained flow gasifiers are discussed. The effects of various process parameters such as particle size, steam and biomass ratio, equivalence ratio, effects of temperature, pressure and gasifying agents are discussed. Depending on the priorities of several researchers, the optimum value of different anticipated productivities in the gasification process comprising better quality syngas production improved lower heating value, higher syngas production, improved cold gas efficiency, carbon conversion efficiency, production of char and tar have been reviewed.

scholarly journals Numerical Study on Catalytic Hydrodeoxygenation of Pyrolytic Bio-Oil Model Compound, Guaiacol, in Fluidized Bed Reactor

2021 ◽  
Author(s):  
Ogene Fortunate ◽  
Nanda Kishore
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Model Compound ◽  
Numerical Study ◽  
Thermochemical Conversion ◽  
Fluidised Bed ◽  
Step Size ◽  
Time Step ◽  
Time Step Size ◽  
Bio Oil

Abstract The bio-oil obtained by thermochemical conversion of lignocellulosic biomass consist of large fractions of oxygenated compounds which deteriorate its quality leading to low calorific value, high viscosity, high density, high moisture content, etc. Therefore, the bio-oil should be deoxygenated using hydrogen in the presence of appropriate catalyst to improve its properties. Adequate literature on pyrolysis of biomass within the framework of computational fluid dynamics is available but only a couple of papers available on hydrodeoxygenation of bio-oil obtained by pyrolysis. Thus, in this study, guaiacol has been selected as a representative model compound of phenolic fraction of bio-oil for upgrading it by catalytic hydrodeoxygenation. The reaction process has been implemented in a fluidised bed reactor in the presence of palladium catalyst, Pd/Al 2 O 3 using computational fluid dynamics (CFD) based solver, ANSYS Fluent 14.5. The range of conditions considered herein are: weight-hourly space velocity (WHSV) = 1, 3 and 5 h -1 ; superficial H 2 -gas velocity, u = 0.075, 0.15 and 0.25 m/s; catalyst load = 0.06 kg and temperature, T = 548 K, 573 K, and 598 K. The solver has been thoroughly validated in terms of grid dependence study, time step size dependence study validating hydrodynamics and HDO results wherever possible with existing literature results. The HDO of guaiacol produces phenol as the most abundant compound along with significant amount of cyclopentanone and methanol. The formation of cyclopentanone from HDO of guaiacol is favourable at high temperature whereas low temperature conditions favour formation of methanol and phenol.

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