scholarly journals Sugarcane Bagasse Valorization Strategies for Bioethanol and Energy Production

2018 ◽  
Author(s):  
Elias Martinez-Hernandez ◽  
Myriam Adela Amezcua-Allieri ◽  
Jhuma Sadhukhan ◽  
Jorge Aburto Anell
Keyword(s):  
Sugarcane Bagasse ◽  
Energy Production

Sugarcane Bagasse: Applications for Energy Production and Ceramic Materials

2015 ◽  
Vol 41 (3) ◽  
pp. 229-238 ◽  
Author(s):  
Silvio Rainho Teixeira ◽  
Amanda Arenales ◽  
Agda Eunice de Souza ◽  
Renata da Silva Magalhães ◽  
Angel Fidel Vilche Peña ◽  
...  
Keyword(s):  
Sugarcane Bagasse ◽  
Energy Production ◽  
Ceramic Materials

An Input-Output Approach to Thailand's Energy Transition: Effects on the Land, Water and Food

2020 ◽  
Author(s):  
Ipsita Kumar ◽  
Kuishuang Feng ◽  
Varaprasad Bandaru ◽  
Laixiang Sun
Keyword(s):  
Land Use ◽  
Renewable Energy ◽  
Sugarcane Bagasse ◽  
Energy Security ◽  
Electricity Generation ◽  
Energy Production ◽  
Crop Residue ◽  
Electricity Production ◽  
Input Output ◽  
Renewable Energy Production

<p>Population and economic growth have increased demand for food, energy, and other resources. At the same time, there is competition from those sectors on limited water and land resources. Thailand faces similar challenges as they transition towards energy independence by increasing renewable energy production for energy security, and to become future exporters of energy. Thailand implemented the Alternative Energy Development Policy (AEDP) in 2012, which led to shifting land use from rice for food to sugarcane for energy production, especially from crop residue. Currently, crop residue use for electricity production is well below its potential. In 2017, 1.06% and 4.44% of total potential of paddy husk and sugarcane bagasse respectively were being used for electricity generation (DEDE, 2017). The AEDP looks to increase energy production from residue use, by targeting future growth in demand, technological changes, and potential areas for renewable energy production. This policy will also impact food supply, water and land use. The sugarcane act in Thailand sets minimum internal prices, in line with international sugar prices, to safeguard the industry, and farmers. However, this safeguard does not apply to sales for energy production, thus discouraging farmers to sell sugarcane to power plants. The study uses an input-output model to understand the economic effects of using crop residue for electricity on the economy, land, labour, etc. The study runs two future scenarios and two historical years (2011 and 2014) to assess these impacts. The first scenario looks at the policy from the Ministry of Industry to stop sugarcane residue burning by 2022. The second scenario looks at the AEDP, which seeks to rapidly increase the generation of electricity from biomass by 2036. The results demonstrate that in the first scenario, where the entire potential of sugarcane bagasse is used for electricity production, electricity generated from all other sources remains nearly the same. Therefore, reliance on non-renewable sources do not change from 2014 to 2022. Similar results are seen for water use, labour and capital, where there is no change over time. The second scenario shows that while the AEDP increases production from biomass, it is not capturing the full potential and therefore electricity production is much lower from crop residues than in scenario 1. This leads to increasing production of electricity from other non renewable sources. We also see a reduction in paddy production and a rise in cane production before the implementation of the AEDP to the future. We conclude that while Thailand is moving towards energy security, policies should target technological development and mechanization at the farm level. The subsidies targeting farmers selling cane for sugar production should also reach those used for energy production, as well as to rice. To ensure reliability of energy supply, irrigation would also be required, as droughts and flooding are both common in different regions of Thailand. Another solution would be to increase the AEDP target, where a larger potential of sugarcane and rice residues are being used for electricity generation.</p>

scholarly journals Torrefaction Characteristics of Blended Ratio of Sewage Sludge and Sugarcane Bagasse for Energy Production

2021 ◽  
Vol 11 (6) ◽  
pp. 2654
Author(s):  
Nwokolo Nwabunwanne ◽  
Tonga Vuyokazi ◽  
Adeniji Olagoke ◽  
Ojemaye Mike ◽  
Mukumba Patrick ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Sugarcane Bagasse ◽  
Energy Production ◽  
Morphological Changes ◽  
Morphological Structure ◽  
Inert Atmosphere ◽  
Infrared Analysis ◽  
Fuel Ratio ◽  
Thermochemical Parameters ◽  
Biomass Particles

Torrefaction is a thermal pretreatment technique usually adopted for improving biomass properties to be on par with that of coal for energy production. In this study, the torrefaction characteristics of blended fuel of sewage sludge (SS) and sugarcane bagasse (BG) biomass were investigated for the purpose of gasification. The thermal degradation behavior of the blended biomass sample was tested in an inert atmosphere from ambient temperature to 900 °C using thermogravimetric analysis (TGA). The obtained TGA data aided in the determination of thermochemical parameters that are of necessity in gasification. Morphological changes in the blended torrefied samples were examined through scanning electron microscopy. Further changes in the chemical structure of the samples were investigated through Fourier-transform infrared analysis. The blend ratio of 75% SS + 25% BG torrefied at 350 °C gave the highest energy value (HHV) of 23.62 MJ/kg, fixed carbon of 51.37 wt % and fuel ratio of 1.70. The obtained fuel ratio is comparable to that required for optimum combustion performance of coal. The morphological structure of the samples showed that there was an aggregation of the biomass particles into small lumps at higher torrefaction temperature for 50% SS + 50% BG and 75% SS + 25% BG blend indicating a better grind ability of the biomass material. Thus, it can be concluded that the blend and torrefaction enhanced the properties of the biomass materials.

Mitochondrial matrix calcium ions regulate energy production in myocardium: A cytochemical study

1990 ◽  
Vol 48 (2) ◽  
pp. 166-167
Author(s):  
W.A. Jacob ◽  
R. Hertsens ◽  
A. Van Bogaert ◽  
M. De Smet
Keyword(s):  
Energy Metabolism ◽  
Calcium Ions ◽  
Energy Production ◽  
Regulation Of Respiration ◽  
Free Calcium ◽  
Mitochondrial Matrix ◽  
Cytochemical Study ◽  
Nmr Techniques

In the past most studies of the control of energy metabolism focus on the role of the phosphorylation potential ATP/ADP.Pi on the regulation of respiration. Studies using NMR techniques have demonstrated that the concentrations of these compounds for oxidation phosphorylation do not change appreciably throughout the cardiac cycle and during increases in cardiac work. Hence regulation of energy production by calcium ions, present in the mitochondrial matrix, has been the object of a number of recent studies.Three exclusively intramitochondnal dehydrogenases are key enzymes for the regulation of oxidative metabolism. They are activated by calcium ions in the low micromolar range. Since, however, earlier estimates of the intramitochondnal calcium, based on equilibrium thermodynamic considerations, were in the millimolar range, a physiological correlation was not evident. The introduction of calcium-sensitive probes fura-2 and indo-1 made monitoring of free calcium during changing energy metabolism possible. These studies were performed on isolated mitochondria and extrapolation to the in vivo situation is more or less speculative.

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