The influence of the elemental and structural chemical composition on the ash fusibility of sugarcane bagasse and sugarcane straw

Fuel ◽  
2021 ◽  
Vol 304 ◽  
pp. 121404
Author(s):  
Kelly Roberta de Palma ◽  
Edson Tomaz ◽  
Antonio Soria-Verdugo ◽  
Maria Aparecida Silva
2016 ◽  
Vol 219 ◽  
pp. 773-777 ◽  
Author(s):  
Marcia Maria de Souza Moretti ◽  
Olavo Micali Perrone ◽  
Christiane da Costa Carreira Nunes ◽  
Sebastião Taboga ◽  
Maurício Boscolo ◽  
...  

2019 ◽  
Vol 33 (4) ◽  
pp. 3227-3238 ◽  
Author(s):  
Kelly Roberta de Palma ◽  
Nestor García-Hernando ◽  
Maria Aparecida Silva ◽  
Edson Tomaz ◽  
Antonio Soria-Verdugo

FLORESTA ◽  
2015 ◽  
Vol 45 (4) ◽  
pp. 713 ◽  
Author(s):  
Diego Aleixo Silva ◽  
Gabriela Tami Nakashima ◽  
João Lúcio Barros ◽  
Alessandra Luzia Da Roz ◽  
Fabio Minoru Yamaji

O objetivo deste trabalho foi caracterizar a produção de briquetes feita a partir de quatro diferentes biomassas residuais. Foram utilizados os resíduos de serragem de Eucalyptus sp, serragem de Pinus sp, bagaço de cana-de-açúcar (Saccharum officinarum L.) e palha de cana-de-açúcar. Os resíduos foram tratados para que obtivessem 12% de umidade e uma granulometria inferior a 1,70 mm. Foram produzidos 15 briquetes para cada um dos quatro tratamentos. A pressão utilizada foi de 1250 kgf.cm-2 durante 30 segundos. Os briquetes obtiveram densidades que oscilaram 0,88 a 1,11 g.cm-3. Isto representou uma faixa de 5 a 14 vezes a menos de ocupação de volume para uma mesma quantidade de massa. O poder calorifico foi de 19.180 J.kg-1 e 20.315 J.kg-1 para as serragens de eucalipto e pinus respectivamente. Para o bagaço e palha de cana os valores foram de 18.541 J.kg-1 e 15.628 J.kg-1. A palha da cana-de-açúcar apresentou um teor de cinzas de 12%. As expansões dos tratamentos oscilaram 4 a 9% e as resistências mecânicas variaram de 1,215 MPa à 0,270 MPa. Todos os briquetes se mostraram resistentes para um empilhamento superior a 10 m de altura. O procedimento adotado pode ajudar a diminuir o espaço de estocagem e de transporte. AbstractThis research aims to characterize the production of briquettes from four different biomasses. We used residues such as Eucalyptus sp sawdust, Pinus sp sawdust , sugarcane bagasse (Saccharum officinarum L.) and sugarcane straw. The residues were treated to obtain 12% moisture content and particle size less than 1.70 mm. We produced 15 briquettes for each treatment. The pressure used was 1250 kgf.cm-2 for 30 seconds. The briquettes obtained densities ranged from 0.88 to 1.11 g.cm-3. This represented a range of 5 to 14 times less volume occupancy for the same amount of mass. The high heating value (HHV) was 19,180 J.kg-1 and 20,315 J.kg-1 for eucalyptus and pine sawdust respectively. The HHV for the bagasse was 18,541 J.kg-1 and for straw was 15,628 J.kg-1. The straw presented an ash content of 12%. The expansions of the treatments ranged 4 to 9% and mechanical resistances ranging from 1,215 MPa to 0,270 MPa. All briquettes were resistant to a higher stacking to 10 m high. The methods can help to decrease the space of storage and transport.Keywords: Waste; biofuel; energy; compression; stacking.


Author(s):  
V. A. Kuzmin ◽  
I. A. Zagrai ◽  
I. A. Desiatkov

The paper deals with the issues related to the effect of slagging within the steam boilers furnaces and shows the determination results on peat ash fusibility of Kirov region deposits. Fusibility properties of peat ash (temperatures of deformation, sphere, hemisphere and flow) from the four industrial areas (Dymny, Pishchalsky, Karinsky, Gorokhovsky) depending on its chemical composition are presented. Melting temperature of the mineral part of the peat, determined by GOST, is averaged and does not reflect the actual melting temperature of the individual particles in fly ash. The existence of such separate particles having a melting temperature below the average melting temperature of the ash makes it difficult to find the operating temperature of the torch to reach the minimum of the furnace slagging during peat combustion. The comparison of melting characteristics of peat ash with the reference literature data is performed. The initial slagging temperature is calculated depending on the ratio of the acidic and basic oxides in peat ash.


Author(s):  
Vanessa de Oliveira Arnoldi Pellegrini ◽  
Regiane P. Ratti ◽  
Jefferson G Filgueiras ◽  
Mauricio Falvo ◽  
Marisa A.L. Coral ◽  
...  

Sugarcane bagasse (SCB) is a promising feedstock for second-generation ethanol production. Bioconversion of lignocellulose into fermentable sugars involve several technological steps, with biomass pretreatment being among the most expensive ones....


2016 ◽  
Vol 91 ◽  
pp. 238-248 ◽  
Author(s):  
Beatriz Stangherlin Santucci ◽  
Julien Bras ◽  
Mohamed Naceur Belgacem ◽  
Antonio Aprigio da Silva Curvelo ◽  
Maria Teresa Borges Pimenta

2017 ◽  
Vol 10 (6) ◽  
pp. 1561-1570 ◽  
Author(s):  
Rafael R. Philippini ◽  
Sabrina E. Martiniano ◽  
Anuj K. Chandel ◽  
Walter de Carvalho ◽  
Silvio S. da Silva

Sign in / Sign up

Export Citation Format

Share Document