scholarly journals PYROLYSIS OF PINE WOOD SAWDUST IN THE PRESENCE OF NATURAL ALUMINOSILICATE-BASED CATALYSTS

2021 ◽  
pp. 58-65
Author(s):  
Антонина Анатольевна Степачёва ◽  
Анастасия Алексеевна Дмитриева ◽  
Юрий Владимирович Луговой ◽  
Кирилл Вячеславович Чалов ◽  
Юрий Юрьевич Косивцов
Keyword(s):  
Maximum Yield ◽  
Processing Waste ◽  
Red Clay ◽  
Pyrolysis Products ◽  
Wood Sawdust ◽  
Natural Aluminosilicate ◽  
Heat Value ◽  
Clay Catalyst ◽  
Pine Wood Sawdust ◽  
Lignocellulose Feedstock

Пиролиз лигноцеллюлозного сырья в ценные продукты является перспективным направлением для переработки отходов деревообрабатывающей промышленности и для получения энергоносителей. Поиск катализаторов, обеспечивающих максимальный выход и теплоценность получаемых продуктов, - это актуальный вопрос в развитии технологии пиролиза. В данной работе были проведены исследования по влиянию катализаторов на основе природных алюмосиликатов на пиролиз сосновых опилок. Было найдено, что катализатор Ni-Red Clay оказывает наибольшее влияние на процесс термодеструкции сосновых опилок, приводя к увеличению выхода жидких и газообразных продуктов пиролиза. Pyrolysis of lignocellulose feedstock into valuable products is a promising direction for processing waste from the woodworking industry and for obtaining energy carriers. The search for catalysts that provide the maximum yield and heat value of the products obtained is an urgent issue in the development of pyrolysis technology. In this paper, studies on the effect of catalysts based on natural aluminosilicates on the pyrolysis of pinewood sawdust were carried out. It was found that the Ni-Red Clay catalyst has the highest influence on the process of thermal degradation of pinewood sawdust, leading to an increase in the yield of liquid and gaseous pyrolysis products.

scholarly journals Preparation of Glucosamine Hydrochloride from Indigenous Shrimp Processing Waste

1970 ◽  
Vol 46 (3) ◽  
pp. 375-378 ◽  
Author(s):  
MM Islam ◽  
SM Masum ◽  
MM Rahman ◽  
AA Shaikh
Keyword(s):  
Maximum Yield ◽  
Therapeutic Activity ◽  
Processing Waste ◽  
Reaction Conditions ◽  
Glucosamine Hydrochloride ◽  
Glycoside Linkage ◽  
Shrimp Shell ◽  
Reaction Proceeds ◽  
Ft Ir ◽  
Hydrolysis Of

The present investigation described the effective preparation of glucosamine hydrochloride (GluHCl) from chitin which was extracted from indigenous shrimp shell. GluHCl has attracted much attention owing to its therapeutic activity in osteoarthritis and widely used dietary supplement. The key step involved was extraction of chitin from shrimp skeleton and then hydrolysis of chitin by concentrated hydrochloric acid. The reaction proceeds via break down of glycoside linkage. Structural analysis was carried out by melting point, TLC, FT-IR, elemental analysis and all the data were compared with that of standard GluHCl. The elemental (C, 32.75; H, 6.51; N, 6.20) analysis is good concord with the calculated value (C, 33.42; H, 6.54; N, 6.50). Absence of v max at 1726 cm-1 indicates that GluHCl is a deacetylated product of chitin. The yields of the product mainly depend on reaction conditions. Maximum yield (63.5%) was obtained when chitin was hydrolyzed with concentrated HCl for 1.30 h. Key words: Shrimp shell; Chitin, Acid hydrolysis; Glucosamine hydrochloride Osteoarthritis. DOI: http://dx.doi.org/10.3329/bjsir.v46i3.9046 BJSIR 2011; 46(3): 375-378

Fuel Property of Pyrolytic-Oil from Para Rubber De-Oiled Seed Residue

2015 ◽  
Vol 781 ◽  
pp. 643-646
Author(s):  
Tanakorn Unpinit ◽  
Mallika Thabuot
Keyword(s):  
Maximum Yield ◽  
Degradation Behavior ◽  
Fuel Property ◽  
Heating Value ◽  
Bio Oil ◽  
Thermal Degradation Behavior ◽  
Clay Catalyst ◽  
Pyrolytic Oil ◽  
Loss Characteristic ◽  
Major Hydrocarbon

In this report, bio-oil was produced from the pyrolysis of Para Rubber de-oiled seed residue mixing with clay catalyst of 5-20%wt. under 400 to 600°C. Pyrolytic oil was determined for the thermal weight loss characteristic, heating value, structural and physical properties. Results showed the yield of pyrolytic oil increased with the increasing catalyst percentage, maximum yield of 24.59%wt. was revealed from the pyrolysis at 550°C. Using clay catalyst of 5%wt. at 400°C gave bio-oil with the highest heating value up to 49.17 MJ/kg. While pyrolytic oil which obtained from the mixture of de-oiled seed residue and 10%wt. clay at 400°C showed the thermal degradation behavior in the range of diesel and gasoline. All pyrolytic oils produced in this study have the major hydrocarbon structure of C-H stretching as investigated by FTIR. However, this product should be upgraded to get better properties closed to the commercial fuel.

scholarly journals Enhancing the Phenolic Content of Bio-Oil by Acid Pre-Treatment of Biomass

2018 ◽  
Vol 7 (2) ◽  
pp. 163-169
Author(s):  
Nurgül Özbay ◽  
Elif Yaman
Keyword(s):  
Thermal Degradation ◽  
Phenolic Content ◽  
Degradation Products ◽  
Chemical Application ◽  
Pyrolysis Gas ◽  
Pine Wood ◽  
Wood Sawdust ◽  
Bio Oil ◽  
Pre Treatment ◽  
Pine Wood Sawdust

Pyrolysis of lignocellulosic biomass with acidic pre-treatment to produce valuable bio-chemicals has been carried out in an integrated pyrolysis-gas chromatograph/mass spectrometry system. Three different waste biomasses (fir wood sawdust, pine wood sawdust and nutshell) were subjected to acidic solution to specify the acid pre-treatment effect on biomass chemical structure, thermal degradation profile and pyrolysis products. Post acid pre-treatments, the changes in the biomasses and thermal degradation profile were studied through proximate, structure and ultimate analysis and thermogravimetric. The pre-treatment significantly reduced the inorganic, cellulose and hemicellulose content in biomass samples. According to the pyrolysis experiment results, acid pre-treatment provided the increasing of the amount of phenolic in the degradation products at 10 min pyrolysis time. All the results would assist further understanding of thermal decomposition and thermo-chemical application for bio-fuels and bio-chemicals of fir wood sawdust, pine wood sawdust and nutshell.Article History: Received January 15th 2018; Received in revised form May 24th 2018; Accepted 7th June 2018; Available onlineHow to Cite This Article: Ozbay, N. and Yaman, E (2018) Enhancing the Phenolic Content of Bio-Oil by Acid Pre-Treatment of Biomass. Int. Journal of Renewable Energy Development, 7(2), 163-169.https://doi.org/10.14710/ijred.7.2.163-169

Distribution and Characteristics of Products from Pyrolysis of Sewage Sludge

2013 ◽  
Vol 726-731 ◽  
pp. 2885-2893 ◽  
Author(s):  
Yu Sun ◽  
Bao Sheng Jin ◽  
Ya Ji Huang ◽  
Wu Zuo ◽  
Ji Qiang Jia ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Maximum Yield ◽  
Fixed Bed ◽  
Energy Utilization ◽  
Gas Composition ◽  
Pyrolysis Products ◽  
Line Measurement ◽  
On Line ◽  
Lower Temperature ◽  
Solid Liquid

Pyrolysis of sewage sludge for the fixed bed were investigated at different final temperatures (300-900 °C) to acquire distribution and characteristics of pyrolysis products. The mass balance was established on base of continuous on-line measurement of gases and integration of gas compounds to give a more accurate reflection on the yields distribution. It was observed that at low temperatures the liquid was the main product with maximum yield of 57 wt%(daf) at 500°C and the gas composition was mainly CO2. Under the condition of a higher pyrolysis temperature (above 600°C), secondary reaction occurred among phase of solid, liquid and gas and generated more CO and H2. From the perspective of energy utilization and accumulation of heavy metals, a lower temperature no more than 600°C is suitable for sewage sludge pyrolysis.

scholarly journals PEMANFAATAN LIMBAH LUMPUR IPAL KAWASAN INDUSTRI DAN SERBUK GERGAJI KAYU MENJADI BRIKET

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Sissar Eka Bimantara ◽  
Euis Nurul Hidayah
Keyword(s):  
Moisture Content ◽  
Research Methodology ◽  
Calorific Value ◽  
Quality Standards ◽  
Ash Content ◽  
Heating Value ◽  
Wood Sawdust ◽  
Quality Testing ◽  
Heat Value

Lumpur IPAL pada Kawasan Industri sampai saat ini belum dapat dimanfaatkan dengan baik, pemanfaatan lumpur IPAL menjadi briket merupakan salah satu upaya untuk mengatasi permasalahan limbah lumpur IPAL. Tujuan penelitian ini adalah mengetahui lumpur IPAL dengan campuran serbuk gergaji kayu dapat dijadikan bahan bakar alternatif berupa briket, mengetahui pengaruh variasi lumpur IPAL dan serbuk gergaji kayu terhadap mutu briket berupa kadar abu, nilai kalor, kadar air , dan mengetahui komposisi terbaik antara lumpur IPAL dan serbuk gergaji kayu untuk menghasilkan nilai kalor optimum pada briket. Metodologi penelitian meliputi pengeringan bahan, karbonisasi bahan, penghalusan dan penyaringan bahan 20 mesh (841 µm), 40 mesh (420µm), dan 60 mesh (250 µm), pencetakan dan pengepresan briket, serta pengeringan briket. Selanjutnya dilakukan uji mutu briket, hasil analisis pada briket terbaik terdapat pada perbandingan 20 : 80 dengan menggunakan ayakan 60 mesh, memiliki nilai kalor 4366,8 kal/g, kadar air 1,26% dan kadar abu 1,32%. Nilai kalor pada briket masih belum memenuhi baku mutu dari SNI 4931 Tahun 2010, Minimnya nilai kalor yang dihasilkan bisa juga karena variabel perlakuan, dengan perbandingan yang dilakukan terhadap lumpur dan serbuk gergaji serta menggunakan ukuran ayakan yang berbeda. Kata Kunci : briket, lumpur IPAL, serbuk gergaji kayu. IPAL sludge in the Ngoro Persada Industry has yet to be utilized properly, utilizing IPAL sludge into briquettes is one of the efforts to solve this problem. The aim of this research was to determine the IPAL sludge with a mixture of wood sawdust can be used as an alternative fuel in the form of briquettes, to determine the effect of variations in IPAL sludge and wood sawdust on the quality of briquettes in the form of heat value, ash content and moisture content as well as knowing the best composition between IPAL sludge and wood sawdust to produce briquettes with the best heating value. The research methodology included material drying, carbonization of materials, refining and filtering of 20 mesh (841 μm), 40 mesh (420μm), and 60 mesh (250 μm), printing and pressing briquettes, and briquette drying. Furthermore, briquette quality testing was conducted, the results showed that the best briquettes were at a ratio of 20: 80 using 60 mesh sleve, having a heating value of 4366.8 cal / g, 1.26% moisture content and 1.32% ash content. The calorific value of briquettes still does not meet the quality standards of SNI 4931 of 2010, the lack of heat value produced can also be due to treatment variables, with the comparison carried out on sludge and wood sawdust and using different sieve sizes. Keywords: briquettes, IPAL sludge, wood sawdust.

CLAY AS A SUBSTRATUM MATERIAL FOR MICROALGAE BIOFILM CULTIVATION

2021 ◽  
Author(s):  
EZEQUIEL HANSEL ◽  
Alice Costa Kiperstok ◽  
Rodrigo Gomes Guimaraes ◽  
Emerson Andrade Sales
Keyword(s):  
Culture Medium ◽  
Scale Up ◽  
Mesh Size ◽  
Complete Separation ◽  
Red Clay ◽  
Low Light ◽  
Wood Sawdust ◽  
Liquid Culture Medium ◽  
Initial Results ◽  
Co2 Addition

The production of microalgae faces several obstacles. The bioreactors and processes used today in microalgae cultivation are expensive or lack optimization to scale up. Furthermore, harvesting, concentrating and dewatering, while using a cheap and suitable photobioreactor are the main problems that we need to be overcome to achieve viability in the process. The Clay Ceramic Bioreactor (CCBR) was built using only clay and wood sawdust and was designed to grow an immobilized microalgal biofilm while having almost complete separation from the liquid culture medium, reducing the consumption of water and energy. Results showed that the wood sawdust particle size should be sifted in a mesh size 10 and mixed in a proportion of 33% of sawdust and 67% of red clay and a maximum firing temperature of 900oC. Maximum dry biomass production of 3.71 g.m-2.d-1 was achieved within 7 days of cultivation, with no CO2 addition and a low light intensity of 45 µmol.m?2.s?1. The biomass was harvested through simple scraping. Initial results indicate a great potential for the use of clay as substratum and further tests should be carried out to scale up and optimize microalgae production,

Hydrogen production from biomass by continuous fast pyrolysis and in-line steam reforming

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 25975-25985 ◽  
Author(s):  
A. Arregi ◽  
G. Lopez ◽  
M. Amutio ◽  
I. Barbarias ◽  
J. Bilbao ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Steam Reforming ◽  
Fast Pyrolysis ◽  
Fluidised Bed ◽  
Spouted Bed ◽  
Commercial Catalyst ◽  
Pine Wood ◽  
Wood Sawdust ◽  
Pine Wood Sawdust ◽  
Fluidised Bed Reactor

The continuous fast pyrolysis of pine wood sawdust has been studied in a conical spouted bed reactor (CSBR) followed by in-line steam reforming of the pyrolysis vapours in a fluidised bed reactor on a Ni commercial catalyst.

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