MyJournals Home  

RSS FeedsEnergies, Vol. 15, Pages 5779: Effect of Potassium Salts on Biochar Pyrolysis (Energies)

 
 

9 august 2022 15:24:29

 
Energies, Vol. 15, Pages 5779: Effect of Potassium Salts on Biochar Pyrolysis (Energies)
 


Alkali pretreatment is one of the chemical pretreatment technologies that has been examined on various types of lignocellulosic biomass. To gain a better insight into the effects of a potassium-based catalyst on pyrolysis behavior with different materials, potassium bicarbonate (KHCO3) and potassium nitrate (KNO3) were used as additives in this study. The experimental parameters which included particle size, heating rate, and additive loading were investigated. The results showed that adding potassium for both KHCO3 and KNO3 to feedstocks led to increase in biochar. A model-free method, Flynn–Wall–Ozawa (FWO), was implemented in this study to determine the activation energy values for untreated and potassium-treated feedstocks. A reduction in apparent activation energy values of treated biomass was observed. This indicates that adding potassium salt to biomass influenced the structures of the main components and promoted the catalytic effect of pyrolysis. Activation energies of treated pine range from 250 to 308 kJ/mol, and energies of wheat straw range from 277 to 402 kJ/mol.


 
102 viewsCategory: Biophysics, Biotechnology, Physics
 
Energies, Vol. 15, Pages 5778: Infrastructure Safety from the Perspective of Resilience Theory (Energies)
Energies, Vol. 15, Pages 5772: Design Optimization of a Switched Reluctance Machine with an Improved Segmental Rotor for Electric Vehicle Applications (Energies)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Physics


Copyright © 2008 - 2024 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Nachrichten