scholarly journals DEVELOPMENT OF ACTIVATED CARBON PRODUCTION TECHNOLOGY FROM A FLAX STALKS BY A THERMOLYSIS-IMPULSE METHOD

2021 ◽  
Author(s):  
E. Berger ◽  
◽  
I. Lilevman ◽  
O. Lilevman
Keyword(s):  
Mathematical Model ◽  
Activated Carbon ◽  
Process Parameters ◽  
Raw Materials ◽  
Industrial Plant ◽  
Activation Process ◽  
Industrial Installation ◽  
Impulse Method ◽  
Selection Of

Purpose of the study is to develop a technology and research and industrial plant for the production of activated carbon by thermolysis-impulse method from a non-traditional source of raw materials – flax stalks. Research methods. Analysis of the chemical composition of flax fire, as well as the current level of its use; disclosure of the activation process and study of the porous structure of sorbents; selection of the optimal method and modes of activation of carbonaceous materials; consideration of methods of activation and study of the mechanism of this reaction; analysis of modern equipment, design and selection of equipment that is most effective in the conditions of flax plants of Ukraine; determination of energy balance of pulse installation; construction of a mathematical model of the process; drawing up a program for computer determination of regression coefficients and on the basis of performed calculations development of nomograms for graphical determination of technological process parameters; study of the influence of technological factors on the physico-chemical characteristics of the obtained activated carbon using the proposed technology and pulse installation that implements it. The results of the study. As a result of research: - developed technology and research and industrial installation for the production of activated carbon by thermolysis-impulse method from a non-traditional source of raw materials - flax stalks; - the optimal technological modes of the activation process are proposed; - the mathematical model of process is created and the nomograms for definition and the forecast of final characteristics of sorbents on input parameters of a technological mode are developed. The expected economic effect for the first year of introduction of the thermolysis-impulse type installation for processing flax stalks into sorbents reaches UAH 2030765. (in 2020 prices). The payback period of the implemented installation is 2.5 months. Conclusions. Using the research results, developed technology and research and industrial installation, it is possible to activate charcoal from flax stalks by thermolysis-impulse method and select the optimal process parameters within the specified temperature and time limits. The obtained activated carbon is applicable for absorption of relatively large molecules or microsuspensions from liquid media. On the basis of the researched materials of this work it is expedient to recommend the offered industrial technological scheme of process of thermolysis-impulse processing of a flax stalks in sorbents.

scholarly journals Pendampingan Usaha Mikro dan Masyarakat Desa Balunijuk dalam Mewujudkan Kampung HalalL

2020 ◽  
Vol 6 (2) ◽  
pp. 173-180
Author(s):  
Occa Roanisca ◽  
Maya Yusnita ◽  
Robby Gus Mahardika
Keyword(s):  
Central Government ◽  
Raw Materials ◽  
Food And Beverage ◽  
Halal Food ◽  
Global Concern ◽  
The Government ◽  
Direct Guidance ◽  
The Village ◽  
Selection Of

Halal product assurance is a global concern, especially in some Southeast Asian countries. The Government of Indonesia through law No. 33 of 2014 requires food and beverage products circulating in Indonesia to have halal certificates. Responding to the central government program, the Government of Bangka Belitung has issued a Regional Regulation on the Implementation of Safe and Halal Food Guarantees. The purpose of the Community Partnership Program (CPP) is to realize Balunijuk Village as Halal Village. The determination of these objectives is the result of an agreement between the village officials and food and beverage business people in Balunijuk Village. The method of implementation in this activity is in the form of direct guidance to six fostered partners to obtain a Sanitation Hygiene (HS) certificate, and socialization on halal lifestyle targeting the community, village officials and six fostered businesses. Six fostered businesses in the village of Balunijuk have received Sanitation Hygiene (HS) Eligible Certificates. The issuance of HS certificates in the foster stalls shows the seriousness of partners in maintaining the cleanliness of the production process, raw materials and sanitation of production sites. HS Certificate as a requirement for business actors to apply for a Halal Certificate LPPOM MUI in Bangka Belitung. As many as 90% of participants understood about halal lifestyle material, besides that participants felt the need to apply halal lifestyle, especially in the selection of food and drinks to be consumed because it had an impact on physical and spiritual health. The results of this activity are the initiators to realize Balunijuk Village as Halal Village.

scholarly journals Activated Carbon Production from Waste Biomass

2018 ◽  
Vol 7 (3.34) ◽  
pp. 345 ◽  
Author(s):  
Rajamani. R ◽  
Vinoth Kumar.B ◽  
Sujith . A ◽  
Karthick E
Keyword(s):  
Activated Carbon ◽  
Process Parameters ◽  
Chemical Activation ◽  
Waste Water Treatment ◽  
High Surface ◽  
Methyl Violet ◽  
Effluent Treatment ◽  
Activation Process ◽  
Impregnation Ratio ◽  
Static Conditions

Activated carbon is used as filter medium for the removal of hazardous particles in exhaust gases, in the purification of water and also in waste water treatment. Activated carbon is used in gas purification, water purification, sewage treatment and many other applications. This concept is used to satisfy the continuously increasing demand of activated carbon at low cost.The textile industry is one of the largest producers of dye effluent. Treatment of these effluents has to be cost effective hence a number of precursors have been studied as a viable alternative adsorbent. The present work relates to efforts made towards developing a high surface area activated carbon produced from the fruit shells of sterculia foetida by chemical activation process with phosphoric acid as the activating agent the fruit shell of sterculia foetida constitute a novel precursor for the preparation of activated carbon which has not yet been identified as a source for carbon material. Experiments were conducted in lab scale using muffle furnaces under static conditions in a self–generated atmosphere covering process parameters such as Impregnation Ratio (IR), Carbonization time and Temperature. The process parameters are characterized and optimized based on the Methylene Blue number, Methyl Violet Number and the Iodine number.The adsorption of reactive orange dye onto fruit shell of sterculia foetida activated carbon from aqueous solution was investigated. The process is carried out varying the process parameters as Impregnation Ratio (1:1 to 1:6), Activation Temperature (300 to 800 oC) and Activation Time (60 to 210 min).   

Effect of surfactant - assisted enzymatic treatment on the structure and specific properties of wool fibre

2018 ◽  
Vol 68 (12) ◽  
pp. 2918-2921
Author(s):  
Irina Chican ◽  
Dana Varasteanu ◽  
Loti Cornelia Oproiu ◽  
Sanda Maria Doncea ◽  
Marian Deaconu ◽  
...  
Keyword(s):  
Ftir Spectroscopy ◽  
Raw Materials ◽  
Enzymatic Treatment ◽  
Wool Fibre ◽  
Renewable Raw Materials ◽  
Wool Fibers ◽  
Fiber Process ◽  
Surfactant Assisted ◽  
Selection Of

The objective of this study is to perform an enzymatic treatment on wool fibers in the presence of a mild detergent containing surfactants obtained from renewable raw materials, in order to obtain a reduction in the felting of wool fibers. This treatment is designed to replace the classic wool fiber process using chlorine compounds, aggressive to people and the environment. FTIR spectroscopy has demonstrated the effect of enzymes by breaking down bonds from the functional groups characteristic of the keratin protein of wool. Determination of relaxation shrinkage and felting shrinkage allowed the selection of the samples that led to a minimal felting phenomenon.

Optimization Design of Single Steering Trapezoid Mechanism of Vehicle Based on MATLAB

2012 ◽  
Vol 490-495 ◽  
pp. 2499-2504
Author(s):  
Ai Hua Ren ◽  
Chuan Qiong Sun
Keyword(s):  
Mathematical Model ◽  
Sensitivity Analysis ◽  
Optimization Design ◽  
Research Direction ◽  
Selection Of Variables ◽  
Analysis Of Results ◽  
Actual Operation ◽  
Matlab Programming ◽  
Selection Of

Firstly the optimum mathematical model of single steering trapezoid mechanism of vehicle was established gradually through selection of variables, setting constraints, determination of objective function. And then the optimum calculation is carried out with MATLAB programming in the case of EQ1092, and the problem occurring in actual operation that the optimum results changed with initial points was solved. In the end the further optimum research direction of this mechanism was intuitively pointed out through visualization and sensitivity analysis of results.

Influence of SLS processing parameters according to the new mathematical model on flexural properties

2016 ◽  
Vol 22 (2) ◽  
pp. 258-268 ◽  
Author(s):  
Ana Pilipović ◽  
Bogdan Valentan ◽  
Mladen Šercer
Keyword(s):  
Mathematical Model ◽  
Selective Laser Sintering ◽  
Processing Parameters ◽  
Laser Sintering ◽  
Flexural Properties ◽  
Content Type ◽  
Manufacturing Procedure ◽  
Fabrication Parameters ◽  
Selection Of

Purpose The purpose of this paper is the selection of production parameters in selective laser sintering – SLS for the production of quality products (e.g. good mechanical properties). The manufacturing procedure affects the properties, which is especially significant in additive procedures, as the products are not cheap and the procedure and material need to be optimally selected. Design/methodology/approach The paper presents an analysis of the fabrication parameters in selective laser sintering (SLS) that affect the flexural properties of the finished product. Findings The influence of a new parameter has been found, the overlay ratio, and using the mathematical and scheme method, the selection of parameters for obtaining the optimal flexural properties has been proposed. Originality/value The paper presents a new mathematical model for the calculation of the processing parameters in SLS of polymer products and gives a diagram for the determination of which parameters are the best to use for practical purposes.

Integration of Expert System Into a CAD System of Springs

1987 ◽  
Author(s):  
Yu Jin ◽  
Liu Shihua ◽  
Qin Jing ◽  
Zhou Ji
Keyword(s):  
Mathematical Model ◽  
Expert System ◽  
Optimal Design ◽  
Structure Characteristic ◽  
Cad System ◽  
System Technique ◽  
Characteristic Features ◽  
Determination Of Parameters ◽  
Selection Of

Abstract By combining the reasoning design of the expert system with the analysis and calculation of spring based on a mathematical model and its optimal design, an intelligent spring CAD system has been established. The expert system technique is adopted for such non-calculating designing steps as the selection of scheme, the determination of parameters as well as for the development of the technological process, thus greatly strengthening the original CAD system of springs. This paper provides a detailed description of the function, structure, characteristic features and significance of the said system.

Processing Flax/ Bemberg/ Bamboo Charcoal Fiber Blended Yarn

2011 ◽  
Vol 332-334 ◽  
pp. 630-633
Author(s):  
Ying Sun
Keyword(s):  
Process Parameters ◽  
Raw Materials ◽  
Knitted Fabric ◽  
Bamboo Charcoal ◽  
High Quality ◽  
High Count ◽  
Rotor Spinning ◽  
Optimization Of Process Parameters ◽  
Spinning Process ◽  
Selection Of

In order to obtain the lightweight and high quality flax class knitted fabric, Spins the high-count flax class knitting gauze are solves the question key . This thesis from the Spinning and Selection of raw materials, The teclmology of the high quality blended knitting yarn of flax fiber / bemberg fiber/bamboo charcoal fiber were manufactured by rotor spinning process, is diseussedin ,and through the comparison of different options for the optimization of process parameters the optimization of process parameters.

scholarly journals Influence of Fusing Conditions on the Change of Colour Shade in the Production of Clothing

Tekstilec ◽  
2020 ◽  
Vol 63 (3) ◽  
pp. 233-238
Author(s):  
Snezhina Angelova Andonova ◽  
Keyword(s):  
Mathematical Model ◽  
Process Parameters ◽  
Quality Criterion ◽  
Polymer Binder ◽  
Textile Material ◽  
Textile Materials ◽  
Main Factors ◽  
The Individual ◽  
Selection Of

One of the major technological processes in the sewing industry is the process of thermo-mechanical fusing (TMF). This is a process in which the main textile material connects to an additional textile material (interlining) through a polymer binder. This ensures better resistance to the shape of the individual parts of the sewing article. The main factors that influence the process are the temperature of the pressing plates, and the pressure and the duration of the process. The process has not been sufficiently studied and therefore it is important to identify a function that connects the output parameter to the input factors of the TMF process. It is especially important to choose an optimisation criterion. After numerous preliminary studies, some changes in textile materials (TM) after TMF have been observed. For example, the incorrect adjustment of process parameters (e.g. pressure, temperature and duration) changes the colour shade of TM after TMF. This change in the colour shade of the individual parts will impair the quality of the sewing product as a whole. This encourages the selection of the quality criterion. In light of the latter, the purpose of this paper was to derive a mathematical model of the TMF process that describes the influence of input factors on the quality criterion: changing the colour shade of TM after TMF.

scholarly journals EFFECT OF THE CARBONIZATION AND ACTIVATION PROCESS ON THE ADSORPTION CAPACITY OF RICE HUSK ACTIVATED CARBON

2017 ◽  
Vol 55 (4) ◽  
pp. 494 ◽  
Author(s):  
Hoa Thai Ma ◽  
Hung Cam Ly ◽  
Van Thi Thanh Ho ◽  
Nguyen Bao Pham ◽  
Dat Chi Nguyen ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Adsorption Capacity ◽  
Rice Husk ◽  
Raw Materials ◽  
Internal Surface ◽  
Surface Characteristics ◽  
Bet Surface Area ◽  
Adsorptive Capacity ◽  
Physical Activation ◽  
Activation Process

In this study, rice husk was used as a precursor to prepare activated carbon using steam as a physical activation agent. Steam for activation can be used to activate almost all raw materials. A variety of methods have been developed but all of these share the same basic principle of initial carbonization followed by an activation step with steam. The study also investigates the effects of preparation parameters on the surface characteristics of the carbon. These parameters include the range of temperature and time in the carbonization and activation. The initial carbonization, done at temperatures up to 500°C in 60 min, is a highly exothermic process where the temperature is strictly controlled. The creation of the internal surface is done during the activation step with steam at temperatures 800°C in 30 min., for which the BET surface area is up to 710.8m2/g. Besides, the iodine and methylene blue adsorption capacity of rice-husk carbon are the best that reach 865.98±6.5 and 217.86±1.0 (mg/g), respectively. The entire synthetic procedure was simple, environmental-friendly and economical-effectively. The application prospect of the activated carbon prepared in this work was much more promising due to its high adsorptive capacity.

scholarly journals Improvement of Microbial Fuel Cell Performance by Selection of Anodic Materials and Enrichment of Inoculum

2015 ◽  
Vol 18 (3) ◽  
pp. 121-129 ◽  
Author(s):  
G. Hernández-Flores ◽  
H. M. Poggi-Varaldo ◽  
O. Solorza-Feria ◽  
M. T. Ponce Noyola ◽  
T. Romero-Castanón ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Activated Carbon ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Internal Resistance ◽  
Fuel Cell Performance ◽  
Sulfate Reducing ◽  
Electricity Power ◽  
Graphite Rod ◽  
Selection Of

This work aimed at evaluating the effect of four anodic materials and the use of enriched inocula on the microbial fuel cell (MFC) performance. The anodic materials were granular activated carbon (GAC), graphite rod (GR), triangles of graphite (GT) and graphite flakes (GF). When loaded with a sulfate-reducing inoculum (SR-In) the internal resistance (Rint) obtained were 273, 410 and 795 Ω for GF, GT, GR, respectively and higher than 10 000 Ω for GAC, whereas the maximum volumetric power (PV,max) were 1326, 2108 and 3052 mW m-3 for GR, GT and GF, respectively. We observed a decrease of Rint and an increase of PV,max with the increase of the log of A´s of the graphite anodic materials that was consistent with a mathematical model previously reported by our Group. The use of the Fe (III)-reducing inoculum significantly enhanced the MFC performance; PV,max was up to 5000 mW m-3, 40% higher than the power obtained with SR-In whereas the Rint was 140 ohms. Highest PVs of our MFC were close to values of electricity power derived from the anaerobic digestion of municipal wastewaters. In this regard, results of this work point out to a promising approach to further tapping bioelectricity from organic wastes that previously have yielded biohydrogen.

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