scholarly journals Effect of temperature and biomass-water ratio to yield and product characteristics of hydrothermal treatment of biomass

2017 ◽  
Author(s):  
Cyrilla Oktaviananda ◽  
Ria F. Rahmawati ◽  
Agus Prasetya ◽  
Chandra W. Purnomo ◽  
Ahmad T. Yuliansyah ◽  
...  
Keyword(s):  
Hydrothermal Treatment ◽  
Effect Of Temperature ◽  
Product Characteristics ◽  
Water Ratio

scholarly journals Einfluss der hydrothermischen Behandlung von Pinus radiata D. Don auf ausgewählte Eigenschaften des Holzes | Influence of hydrothermal treatment of Pinus radiata D. Don on specific characteristics of the wood

2004 ◽  
Vol 155 (12) ◽  
pp. 540-543
Author(s):  
Peter Niemz ◽  
Hernan Poblete ◽  
Frank Schanack ◽  
Fritz Bächle
Keyword(s):  
Moisture Content ◽  
Hydrothermal Treatment ◽  
Pinus Radiata ◽  
Bending Strength ◽  
Treatment Time ◽  
Ph Value ◽  
Effect Of Temperature ◽  
Residual Water ◽  
Air Humidity ◽  
Hydrothermal Conditions

Pinus radiata wood was treated under hydrothermal conditions(steam) in an autoclave. The effect of temperature and time were studied. Bending strength, equilibrium moisture content, swelling and pH value of residual water were determined. Following effects were determined: a) a reduction of pH value, b) a considerable reduction of wooden mass, c) a reduction of equilibrium moisture up to 75% air humidity was registered. With higher air humidity no differences between treatments were detected, and d) with higher temperatures and longer treatment time, a reduction of bending strength was ascertained.

scholarly journals PELATIHAN PEMBUATAN BRIKET DARI ARANG TEMPURUNG KELAPA DI KELURAHAN KOLONGAN SATU KOTA TOMOHON

2018 ◽  
Vol 10 (01) ◽  
Author(s):  
Meytij J Rampe
Keyword(s):  
Carbon Material ◽  
Chemical Properties ◽  
Raw Material ◽  
Coconut Shell ◽  
Process Synthesis ◽  
Effect Of Temperature ◽  
Synthesis Process ◽  
Product Characteristics ◽  
Structural Growth

Training on the briquettes synthesis from coconut shell charcoal has been conducted. This training was aimed to study the effects starch agent in the from solution on structural growth of briquettes and its chemical properties and the effect of temperature (200-500 oC) on the characters of the briquettes. The product characteristics of briquettes showed thatthere was a change on the chemical properties of the raw material which has been sintered at 300 oC, at which briquettes was produced in this process. Synthesis process at 300 oC in the presence of starch gave carbon material briquettes.

Production of Bio-Crude Oil from Microalgae Chlorella sp. Using Hydrothermal Liquefaction Process

2020 ◽  
Vol 849 ◽  
pp. 14-19
Author(s):  
Aldeniro Arief Bawono ◽  
Hisyam Adhisatrio ◽  
Laras Prasakti ◽  
Yano Surya Pradana
Keyword(s):  
Crude Oil ◽  
Residence Time ◽  
Hydrothermal Liquefaction ◽  
Biofuel Production ◽  
Oil Yield ◽  
Effect Of Temperature ◽  
Low Carbon ◽  
High Oxygen Content ◽  
Liquefaction Process ◽  
Water Ratio

Currently, microalgae have attracted as potential feedstock for biofuel production. Hydrothermal liquefaction was proposed as technology to convert microalgae into bio-crude oil. Microalgae used in this study was Indonesia-cultivated Chlorella sp., This work investigated the effect of temperature (200°C, 225°C, 250°C), biomass weight-water ratio (1:20, 2:20, 3:20), and residence time (10, 20, 30 minutes) on bio-crude oil yield of non-catalytic hydrothermal liquefaction. The highest bio-crude oil yield was 2.25%, obtained at temperature of 250°C biomass weight-water ratio of 1:20, and residence time of 10 minutes. The highest component of bio-crude oil was alcohols. The low bio-crude oil yield was caused by the longer residence time of cooling step (driving gas conversion), low amount of carbon-hydrogen content and high amount of oxygen-ash content in biomass. Furthermore, the highest component of bio-crude oil was alcohols, stimulated by low carbon content coupled with high oxygen content in Chlorella sp.

scholarly journals Hydrothermal Treatment of Herb Residue for Solid Fuel Production

2021 ◽  
Vol 21 (1) ◽  
pp. 83
Author(s):  
Fredy Surahmanto ◽  
Didik Nurhadiyanto ◽  
Mujiyono Mujiyono ◽  
Chinnathan Areeprasert ◽  
Mochamad Syamsiro
Keyword(s):  
Hydrothermal Treatment ◽  
Calorific Value ◽  
Volatile Matter ◽  
Proximate Analysis ◽  
Holding Time ◽  
Char Yield ◽  
Water Mixture ◽  
Final Temperature ◽  
Solid Water ◽  
Water Ratio

Hydrothermal processing is appraised as one of  advanced technologies for wet solid waste handling. In this study, herb residue was subjected to hydrothermal treatment. Calorific value, yield, and also proximate analysis of obtained hydro-char were investigated. A cylindrical reactor with an internal volume of 2.5 Litres made of stainless steel and a low-tech component was used in the experiment. The reactor was equipped with a stirrer to ensure heat transfer took place through the entire parts of the solid-water mixture. Solid products were dried by a microwave oven before analysis. The results show that the final temperature, holding time, and solid-water ratio have various effects on the hydro-char yield, calorific value, and proximate analysis of the hydrothermal products. The hydro-char yield decreased with the increase in final temperature and holding time. Meanwhile, the highest hydro-char yield was obtained at the solid-water ratio of ¼. The hydro-char calorific value increased with the increase in final temperature, holding time, and solid-water ratio. The rise in final temperature, holding time, and solid-water ratio resulted in  a lower moisture content and volatile matter but higher fixed carbon. Meanwhile, the ash content increased with the solid-to-water ratio.

scholarly journals The Effect of Temperature and Time of the Hydrothermal Treatment in the SBA-15 Synthesis Process on the Structure and Textural Properties and the Ability to Reduce the Evolution of Tars in Tobacco Smoking

Catalysts ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 272
Author(s):  
Nerea Juárez-Serrano ◽  
Javier Asensio ◽  
Isabel Martínez-Castellanos ◽  
Maribel Beltrán ◽  
Antonio Marcilla
Keyword(s):  
Hydrothermal Treatment ◽  
Amorphous Materials ◽  
Marked Effect ◽  
Textural Properties ◽  
Effect Of Temperature ◽  
Synthesis Process ◽  
X Ray Diffraction ◽  
Santa Barbara ◽  
X Ray ◽  
Tar Reduction

Different SBA-15 (SBA, Santa Barbara Amorphous) materials were synthetized at different temperature and time during of the hydrothermal treatment. The obtained SBA-15 were characterized by N2 adsorption isotherms, scanning electron microscopy (SEM), X-ray diffraction (DRX), and density in order to establish the influence of these variables on their properties. Mixtures of the obtained catalysts with 3R4F tobacco were prepared and smoked under the ISO 3308 conditions. Temperature of the hydrothermal treatment slightly affects the tars that evolved in the smoking process of the corresponding catalyst tobacco mixtures. Contrarily, the time of the hydrothermal treatment has a marked effect on the reductions of toxic compounds in the smoke. Developed porosity has a positive correlation with the observed tar reduction, whereas the apparent density has a negative correlation with the reduction in toxicity. Moreover, the removal of the supernatant liquors during the hydrothermal treatment does not strongly modify the properties of the materials and may represent an interesting simplification of the process.

Solid Biofuel Production from Meranti (Shorea Sp.) Sawdust Using Hydrothermal Treatment

2018 ◽  
Vol 789 ◽  
pp. 104-109
Author(s):  
Indah Astieningsih Mappapa ◽  
Ahmad T. Yuliansyah
Keyword(s):  
Hydrothermal Treatment ◽  
Subcritical Water ◽  
Raw Materials ◽  
Initial Pressure ◽  
Biofuel Production ◽  
Effect Of Temperature ◽  
Waste Biomass ◽  
Wood Processing ◽  
Solid Biofuel ◽  
Proximate And Ultimate Analysis

In the context of industrialization, wood industry plays an important role as one of thepillar components in building Indonesia industry where 76.36% is supported by Meranti (Shorea Sp.).However, the increase of wood processing industries produces waste biomass in the form of largeamount sawdust. Hydrothermal treatment is an environmentally clean technology of convertingbiomass into coal-like solid called hydrochar using subcritical water. The purpose of this research isto determine the effect of temperature and water to biomass (b/w) ratio in the formation of hydrocharfrom Meranti sawdust. This research was carried out using a 250 mL hydrothermal reactor where amixture of Meranti sawdust and water heated at temperature variation of 240 and 300oC; b/w ratio1:20, 2:20, 3:20; initial pressure of 1.0 Mpa and holding time for 30 minutes. Hydrochar were thencharacterized in terms of yield, caloric value, proximate and ultimate analysis. Based on experimentalresult, 39-78% raw materials were converted into hydrochar where the highest yield was found ontemperature operation of 240oC and b/w ratio 2:20.

scholarly journals INFLUENCE OF THE HYDROTHERMAL TREATMENT TEMPERATURE CONDITIONS ON POULTRY MEAT

2021 ◽  
Vol 15 (2) ◽  
Author(s):  
O. Synytsia ◽  
L. Vinnikova
Keyword(s):  
Hydrothermal Treatment ◽  
Raw Material ◽  
Poultry Meat ◽  
Effect Of Temperature ◽  
Process Conditions ◽  
Processing Temperature ◽  
Poultry Production ◽  
Poultry Products ◽  
Treatment Conditions ◽  
Organoleptic Characteristics

The poultry production is growing rapidly every year. Having a rapid pace of development and reproduction, and greater affordability, the poultry products are in high demand from the population. In this regard, the industry is in demand for deep processing of poultry meat, which is not only economically feasible, but also makes it possible to expand the scope of use of this product. The complex morphological structure of the poultry complicates its use as the main raw material for meat products, and poultry meat is mainly sold in the form of natural semi-finished products with a limited shelf life. It is possible to expand the range of poultry products through the production of canned food. A new technology for the production of pasteurized canned poultry meat was developed at the Department of Meat, Fish and Seafood Technology of the Odessa National Academy of Food Technologies. This technology involves hydrothermal treatment of the raw materials, hot boning, mixing of components of the formulation and pasteurization. This article reveals the issue of the first stage of production, namely the establishment of rational meat hydrothermal treatment conditions. The problem of choosing the heat treatment conditions is extremely important, because depending on the process conditions and the final heating temperature, the transformation of the components and the properties of the finished products differ significantly. The paper studies the effect of temperature in the range from 65 to 95°C in 5°C increment on the rate and degree of cooking of collagen, the formation of the required structure of the product (hydrogel base filled with individual muscle fibers), hardness and tenderness of meat. It is established that the optimal processing temperature of poultry meat is 65°C. The meat processed at this temperature had the highest degree of collagen cooking, the highest viscosity of the broth, the lowest shear stress, and the best organoleptic characteristics.

scholarly journals Effect of Temperature on the Combustion of Kepok Banana (Musa Paradisiaca Linn cv. 'Saba') Peel as Potassium Source

2018 ◽  
Vol 1 (1) ◽  
pp. 060-066
Author(s):  
Bambang Trisakti ◽  
Dasa Haryuwibawa ◽  
Joko Mulya Pratama ◽  
Irvan Irvan
Keyword(s):  
Combustion Temperature ◽  
Pure Water ◽  
Potassium Content ◽  
Effect Of Temperature ◽  
Banana Peel ◽  
Combustion Time ◽  
Muffle Furnace ◽  
Soaking Time ◽  
Musa Paradisiaca ◽  
Water Ratio

The aims of this study is to determine the optimum combustion temperature of kepok banana (Musa Paradisiaca Linn cv. 'Saba') peel as a potassium source. Experiment was started by combustion kepok banana peel to ashes. Combustion was carried out by inserting 15 g of kepok banana peel into a muffle furnace at temperatures of 450, 500, 550 and 600oC for 3 and 5 hours. The content of potassium in the ash was extracted with pure water which ash-water ratio was 1:100 and the soaking time was 24 hours. Furthermore, analysis of the extract was carried based on various parameter such as normality, pH, electrical conductivity, and potassium content (as K2O). The best of potassium content obtained from ashes produced by combustion of kepok banana peel was 61.80% at temperatures of 550oC for 5 hours of combustion time.

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