Slow pyrolysis of Tectona Grandis and Albizia Chinensis sawdust with thermogravimetry analysis

2019 ◽  
Author(s):  
Zuhdy Ilham Utama ◽  
Dwi Aries Himawanto ◽  
Dominicus Danardono Dwi Prija Tjahjana
Keyword(s):  
Tectona Grandis ◽  
Slow Pyrolysis ◽  
Thermogravimetry Analysis

Combustion characteristics of Albizia Chinensis and Tectona Grandis sawdust and a mixture of both using thermogravimetry analysis

2019 ◽  
Author(s):  
Murnanda Zaesy Saputra ◽  
Dwi Aries Himawanto ◽  
Dominicus Danardono Dwi Prija Tjahjana ◽  
Titis Srimuda Pitana
Keyword(s):  
Tectona Grandis ◽  
Combustion Characteristics ◽  
Thermogravimetry Analysis

scholarly journals Valorization of Indonesian Wood Wastes through Pyrolysis: A Review

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1407
Author(s):  
Agus Haryanto ◽  
Wahyu Hidayat ◽  
Udin Hasanudin ◽  
Dewi Agustina Iryani ◽  
Sangdo Kim ◽  
...  
Keyword(s):  
Main Product ◽  
Tectona Grandis ◽  
Soil Improvement ◽  
Wood Waste ◽  
Added Value ◽  
Waste Biomass ◽  
Slow Pyrolysis ◽  
Gaseous Products ◽  
Wood Processing ◽  
Depth Study

The wood processing industry produces a significant amount of wood waste. Biomass valorization through pyrolysis has the potential to increase the added value of wood wastes. Pyrolysis is an important thermochemical process that can produce solid, liquid, and gas products. This paper aims to review the pyrolysis of wood wastes from Indonesia, including teak wood (Tectona grandis), meranti (Shorea sp.), sengon (Paraserianthes falcataria (L) Nielsen), and rubberwood (Hevea brasiliensis). The review is based on an in-depth study of reliable literatures, statistical data from government agencies, and direct field observations. The results showed that pyrolysis could be a suitable process to increase the added value of wood waste. Currently, slow pyrolysis is the most feasible for Indonesia, with the main product of charcoal. The efficiency of the slow pyrolysis process can be increased by harvesting also liquid and gaseous products. The use of the main product of pyrolysis in the form of charcoal needs to be developed and diversified. Charcoal is not only used for fuel purposes but also as a potential soil improvement agent.

Influence of anatomy on the adhesion performance of four wood species

2020 ◽  
Vol 9 (4) ◽  
pp. e31942727
Author(s):  
João Gabriel Missia da Silva ◽  
Pedro Nicó de Medeiros ◽  
Denise Ransolin Soranso ◽  
Vinicius Peixoto Tinti ◽  
José Tarcísio da Silva Oliveira ◽  
...  
Keyword(s):  
Shear Strength ◽  
Specific Gravity ◽  
Wood Species ◽  
Tectona Grandis ◽  
Glue Line ◽  
Anatomical Characteristics ◽  
Ray Cells ◽  
Adhesion Performance ◽  
Adhesion Process

The aim of this study was to evaluate the influence of anatomical characteristics on the adhesion performance of Vatairea sp., Paulownia sp., Aspidosperma populifolium and Tectona grandis wood. Specimens for anatomical, physical and mechanical analyzes were produced from tangentially oriented boards. The treatments were joint glued from pieces of the same anatomical orientation (radial and tangential), evaluated for shear strength and glue line failure. The Vatairea sp wood had the highest specific gravity (0.74 g cm-3) and the Paulownia sp (0.34 g cm-3) wood was smaller. Aspidosperma populifolium species showed the highest shear strength in the glue line in the tangential and radial faces. The anatomical variables with higher influence on the wood adhesion process were pith ray cells and especially fibers that exhibit the greatest correlation with the shear strength of the glue line.

In-vivo anti-oxidant screening of Tectona grandis extract

2020 ◽  
Vol 9 (1) ◽  
pp. 1-4
Author(s):  
Tamilarasi G P ◽  
Sabarees G
Keyword(s):  
Biochemical Parameters ◽  
Tectona Grandis ◽  
The Body ◽  
Altered Expression ◽  
Physiological Conditions ◽  
Synthetic Drugs ◽  
Significant Difference ◽  
Anti Oxidant ◽  
Radical Generation

Oxidation is an essential reaction in the human body, which determines the expression of proteins in the body. This results in the altered expression like rapid growth resulting in cancers and other disorders. Many synthetic drugs are available in the market that is effective in limiting the free radical generation and the reaction of radicals with cells. Unfortunately, all those synthetic drugs were found to cause side effects and adverse effects in the body. But given the accuracy of the predictability of the results and administration, this research focuses on testing the anti-oxidant efficiency in rat models testing the biochemical parameters. Investigations have also been done on the anti-oxidant activity of Tectona, but every research was concentrated to prove the anti-oxidant activity only. extract had been tested for anti-oxidant activity by estimating various tissue parameters and it showed better activity. As predicted, there is a significant difference in the and results which can be explained are due to the physiological conditions that exist inside the body.

Thermodynamic evaluation of process to obtain charcoal from the slow pyrolysis of babassu coconut

2017 ◽  
Author(s):  
Francisco Everton Tavares de Luna ◽  
Laionel Guedes ◽  
Herculano Telino Macau ◽  
Rennan Jackson Ferreira Macedo
Keyword(s):  
Thermodynamic Evaluation ◽  
Slow Pyrolysis

EVALUACIÓN DE CARBONO ALMACENADO EN UNA PLANTACIÓN DE TECA (TECTONA GRANDIS L. F.) EN TIZIMÍN, YUCATÁN, MÉXICO

2019 ◽  
Vol 22 (97) ◽  
Author(s):  
Dora Alicia García García ◽  
Javier Jiménez Pérez ◽  
José Israel Yerena Yamallel ◽  
Óscar Alberto Aguirre Calderón ◽  
Eduardo Alanís Rodríguez
Keyword(s):  
Tectona Grandis ◽  
Palabras Clave

El carbono se acumula en los ecosistemas forestales mediante la absorción de CO2 atmosférico y su asimilación en la biomasa. El objetivo del estudio fue evaluar el carbono almacenado en una plantación de Tectona grandis L. f. (teca) de seis años de edad en Tizimín, Yucatán. La toma de datos de campo se realizó en 2017. Para cuantificar el carbono y el bióxido de carbono se efectúo muestreo destructivo en 12 árboles representativos. El carbono almacenado fue de 40.08 ton/ha, y el CO2 almacenado fue de 147.1 ton/ha. Las plantaciones forestales contribuyen a mitigar el calentamiento global al absorber el CO2. Palabras clave: biometría forestal, cambio climático, servicios ambientales, plantaciones forestales, Tectona grandis.

PERTUMBUHAN LINGKARAN POHON JATI PADA DUA SISTEM KULTUR BERBEDA DI JAWA TIMUR

2008 ◽  
Vol 6 (2) ◽  
Author(s):  
Iriwi Louisa S. Sinon
Keyword(s):  
Tree Ring ◽  
Tectona Grandis ◽  
Annual Growth ◽  
Natural Growth ◽  
Growth Rings ◽  
Climate Effect ◽  
Tropical Regions ◽  
Annual Growth Rings ◽  
Chronological Sequence ◽  
Plantation Teak

<p><em>Study dendrochronology or tree-ring dating is defined as the study of chronological sequence of annual growth rings in trees. Teak (Tectona grandis) is one of various tree species that has been identified for the use of tree-ring studies in tropical regions. Teak is found to be suitable for dendrochronology as it is long-lived and develops defined annual growth rings. In Java, teak cans growth naturally or intensively in plantation. The two silviculture conditions will give different sensitivity on climate effect. Therefore, the effect of silviculturer will on natural teak and plantation teak in Saradan, Madiun, and East Java. As a part of the study, ten core samples from natural- growth teak were measured. The samples of growth rings is spanned from 1832 – 2004. Using the COFECHA program, the correlation of the samples (r) was found to be 0.44 point, which is satisfactory to the standard used in dendrochronology. Thus, from this study it can be concluded that natural teak could still be used in dendrochronology, although the sensitivity are not as high as plantation teak. </em></p>

LEVANTAMENTO DE PRAGAS E DOENÇAS DA TECA (Tectona Grandis) EM DOIS MUNICÍPIOS DA MICRORREGIÃO DO NORDESTE PARAENSE

2018 ◽  
Author(s):  
OLIVEIRA Arley Andesom Soares DE ◽  
SOARES Marciane Borges ◽  
SILVA Bruno Maia DA ◽  
PEREIRA Wanderson Cunha ◽  
SIQUEIRA Jackeline Araújo Mota
Keyword(s):  
Tectona Grandis
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