scholarly journals Conversion of Lignocellulose for Bioethanol Production, Applied in Bio–Polyethylene Terephthalate

Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2886
Author(s):  
Damayanti Damayanti ◽  
Didik Supriyadi ◽  
Devita Amelia ◽  
Desi Riana Saputri ◽  
Yuniar Luthfia Listya Devi ◽  
...  
Keyword(s):  
Polyethylene Terephthalate ◽  
Terephthalic Acid ◽  
Raw Materials ◽  
Raw Material ◽  
Reaction Pathways ◽  
Bioethanol Production ◽  
Separation Processes ◽  
Production Processes ◽  
Lignocellulose Conversion ◽  
Increasing Demand

The increasing demand for petroleum-based polyethylene terephthalate (PET) grows population impacts daily. A greener and more sustainable raw material, lignocellulose, is a promising replacement of petroleum-based raw materials to convert into bio-PET. This paper reviews the recent development of lignocellulose conversion into bio-PET through bioethanol reaction pathways. This review addresses lignocellulose properties, bioethanol production processes, separation processes of bioethanol, and the production of bio–terephthalic acid and bio–polyethylene terephthalate. The article also discusses the current industries that manufacture alcohol-based raw materials for bio-PET or bio-PET products. In the future, the production of bio-PET from biomass will increase due to the scarcity of petroleum-based raw materials.

scholarly journals Advanced Bioethanol Production: From Novel Raw Materials to Integrated Biorefineries

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 206
Author(s):  
Aleta Duque ◽  
Cristina Álvarez ◽  
Pablo Doménech ◽  
Paloma Manzanares ◽  
Antonio D. Moreno
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Added Value ◽  
Bioethanol Production ◽  
New Developments ◽  
Production Processes ◽  
Food And Beverage ◽  
Cost Competitiveness ◽  
Microbial Strains ◽  
The Cost

The production of so-called advanced bioethanol offers several advantages compared to traditional bioethanol production processes in terms of sustainability criteria. This includes, for instance, the use of nonfood crops or residual biomass as raw material and a higher potential for reducing greenhouse gas emissions. The present review focuses on the recent progress related to the production of advanced bioethanol, (i) highlighting current results from using novel biomass sources such as the organic fraction of municipal solid waste and certain industrial residues (e.g., residues from the paper, food, and beverage industries); (ii) describing new developments in pretreatment technologies for the fractionation and conversion of lignocellulosic biomass, such as the bioextrusion process or the use of novel ionic liquids; (iii) listing the use of new enzyme catalysts and microbial strains during saccharification and fermentation processes. Furthermore, the most promising biorefinery approaches that will contribute to the cost-competitiveness of advanced bioethanol production processes are also discussed, focusing on innovative technologies and applications that can contribute to achieve a more sustainable and effective utilization of all biomass fractions. Special attention is given to integrated strategies such as lignocellulose-based biorefineries for the simultaneous production of bioethanol and other high added value bioproducts.

scholarly journals Physical and Chemical Fundamentals and Technical Solutions for Recovery of Non-ferrous and Rare Metals from Industrial Wastes

2020 ◽  
Author(s):  
P.A. Kozlov ◽  
A.M. Panshin ◽  
L.I. Leontiev
Keyword(s):  
Russian Federation ◽  
Raw Materials ◽  
Block Diagram ◽  
Industrial Wastes ◽  
Raw Material ◽  
Material Base ◽  
Waelz Process ◽  
Zinc Cadmium ◽  
The Russian Federation ◽  
Increasing Demand

The increasing demand for zinc and a range of zinc-related metals (for example: lead; indium; tin; cadmium; and copper) in the Russian Federation cannot be satisfied by the existing production plants due to the lack of raw materials. At the same time, ferrous and non-ferrous metallurgy and the chemical industry have accumulated hundreds of millions of tons of zinc wastes (falling into the hazard categories 2 to 4), the processing of which could not only make up the raw material base, but also improve the environmental situation. In the world, over 85% of ferrous dust is recycled using the Waelz process. The Waeltz process is used for distilling separation of elements under reducing conditions. In this study, a block diagram for production of the following elements from industrial wastes is proposed: zinc, cadmium and indium in form of massive metals; zinc and indium in the form of fine powders; and clinker as a raw material for cement production. The technical and scientific details of this new process have been patented in the Russian Federation and abroad. For the first time, the following operations have been implemented with the use of large-sized Waelz kilns: vapour-oxidized Waeltz treatment of polymetallic wastes; recycling of heat from gases and solid products with generation of process fumes; and implementation of alternative flux (dolomite) and alternative fuel (petroleum coke). Keywords: Waelz process, industrial wastes, heat recycling, vapour-oxidized Waelz processing

Sustainable Construction Materials

2019 ◽  
pp. 658-687 ◽  
Author(s):  
R. V. Ralegaonkar ◽  
M. V. Madurwar ◽  
V. V. Sakhare
Keyword(s):  
Smart City ◽  
Raw Materials ◽  
Construction Materials ◽  
Raw Material ◽  
Sustainable Construction ◽  
City Development ◽  
Chemical Test ◽  
Physico Chemical ◽  
Increasing Demand ◽  
By Products

Due to ever increasing demand for the conventional construction materials as well as an increase in agro-industrial by-products it is essential to reuse these materials. As a smart city solution this chapter briefs an overview for the application of alternate raw materials as a principal source for the development of sustainable construction materials. The potential application of the discussed raw materials is elaborated as cementitious material, the aggregates as well as alternative reinforcement material. To understand the process of application, sustainable masonry product development is discussed in detail. In order to evaluate the feasibility of the raw material, the necessary physico-chemical test evaluation methods are also briefed. The developed end product performance evaluation is also discussed by desired tests as recommended by standards. The chapter concludes with a positive note that reuse of agro-industrial by-products is a feasible solution for the smart city development.

scholarly journals PENGEMBANGAN USAHA BENIH JAGUNG TAHAN KERING

2018 ◽  
Vol 17 (1) ◽  
pp. 70
Author(s):  
S.M. Sarwadana ◽  
B.R.T. Putri ◽  
K.K. Dinata
Keyword(s):  
Raw Materials ◽  
Science And Technology ◽  
Raw Material ◽  
Maize Seed ◽  
Seed Corn ◽  
Entrepreneurial Spirit ◽  
Drought Tolerant ◽  
Production Processes ◽  
Maize Varieties ◽  
Made In

Activities of science and technology for innovation and creativity campus aims are: (1) thecommercialization of science and technology campus creativity as a source of financing for the developmentof institutions; (2) stimulate the entrepreneurial spirit among beings campus, and (3) help people get seeds ofdrought-tolerant maize varieties. Methods of execution include the business aspects of the planned businessactivities consist of: provision of raw materials, production processes, management, marketing, humanresources, facilities, and financial. The raw material is obtained from units of science and technology fornovation and creativity campus and through partnerships with farmers' seed corn. The production processstarted from seed, sorting, and packaging. Marketing is done directly, partnerships with local governmentsand konsiniasi with kiosk / farm shop. Results show that the activities of science and technology unit forinnovation and creativity campus drought-tolerant maize seed has gone well characterized by supportinfrastructure adequate maize seed production; IbIKK unit operates under the management of PSAgroecotechnology Faculty of Agriculture, University of Udayana; Of investment made in 2014 amountingto Rp. 39,550,000; Result of sales corn seeds turnover in 2014 amounted to 400 kg (Rp. 12 million); and netcash flow amounted to 17,672,400.

Green gold of Africa – Can growing native bamboo in Ethiopia become a commercially viable business?

2014 ◽  
Vol 90 (05) ◽  
pp. 628-635 ◽  
Author(s):  
Felix Böck
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Wood Products ◽  
Raw Material ◽  
Sustainable Construction ◽  
Sustainable Business ◽  
Subtropical Zone ◽  
New Construction ◽  
Increasing Demand

With concerns about climate change and the search for sustainable construction materials, significant attention is now being paid to Africa's natural resources. Ethiopia, known as Africa's political capital, has a rapidly expanding economy with increasing demand for new construction materials. Through public private partnerships projects the country is developing a sustainable business model to promote bamboo as a raw material. The subtropical zone of Ethiopia is home to approximately 65% of Africa's bamboo resources, an area of over 1 million hectares. Bamboo is potentially an ideal source of local, sustainable purpose-engineered building materials for growing cities not only in Ethiopia but across Africa. Production of conventional construction materials such as steel and concrete is expensive, highly energy intensive and unsustainable, requiring large quantities of water and is strongly dependent on imported raw materials. Bamboo is a renewable building material widely cultivated in Ethiopia but not yet utilized in modern construction. Structural Bamboo Products (SBP), similar to engineered wood products, have excellent potential to partially replace the use of more energy-intensive materials. Projects such as African Bamboo are taking steps in managing, cultivating and using Ethiopian bamboo species to help mitigate rapid deforestation in East Africa by creating alternative “wood” sources and sustainable business opportunities.

scholarly journals Dampak Kebijakan Tarif Impor Terhadap Ekonomi Kedelai Indonesia

2021 ◽  
Vol 5 (1) ◽  
pp. 73
Author(s):  
Dona Wahyuning Laily ◽  
Ida Syamsu Roidah ◽  
Ika Purnamasari
Keyword(s):  
Raw Materials ◽  
Public Awareness ◽  
Raw Material ◽  
Soybean Production ◽  
National Economic ◽  
The Future ◽  
The Face ◽  
The Government ◽  
Increasing Demand ◽  
Home Industries

Soybean is the main crop of the palawija system which is commonly applied in Indonesia. In the national economic system, soybean is a commodity owning strategic values due to its ability to supply nutrients needed by the community and a source of income for farmers. Demand for soybean is likely to continue to increase in line with population growth, increase in per capita income, increase in public awareness of nutritional adequacy, and the development of livestock preparation and silage industries. Given the high trend of soybean demand in the future, efforts to increase domestic soybean production are becoming increasingly important. Meanwhile in the future, the policy to protect domestic soybean farmers will be limited due to the demands of free trade. Considering that soybean is consumed in the form of processed food, the increasing demand for soybeans in the future indicates that there will be more opportunities for the development of home industries to produce this food. The need for soybeans as raw material for agro-industry cannot currently be met by domestic soybean production, both in terms of quality and quantity. This causes the need for imported soybeans to be even greater. Domestic soybean production, both in quality and quantity, seems to be unable to meet the soybean needed for industrial raw materials, thus causing a higher tendency for imported soybean demand. Therefore, import tariff policies in the face of world trade liberalization must be regulated in such a way by taking into account the interests of producers, consumers, and the government. This policy is still needed in realizing the independence of export quality soybeans. Kedelai adalah tanaman utama Sistem Palawija yang umum diterapkan di Indonesia. Dalam sistem perekonomian nasional, kedelai menjadi komoditas yang memiliki nilai strategis karena memiliki kemampuan untuk memasok hara yang dibutuhkan oleh masyarakat dan merupakan sumber pendapatan bagi petani. Permintaan kedelai akan terus meningkat seiring dengan adanya peningkatan jumlah penduduk, pertambahan pendapatan perkapita tiap penduduk, meningkatnya kesadaran masyarakat akan gizi yang cukup, serta berkembangnya industri persiapan dan silase ternak. Melihat masih tingginya trend permintaan kedelai di masa datang, upaya peningkatan produksi kedelai di dalam negeri menjadi semakin penting. Sementara itu di masa depan kebijaksanaan untuk melindungi petani kedelai di dalam negeri semakin terbatas peluangnya karena tuntutan perdagangan bebas. Mengingat sebagaian besar kedelai dikonsumsi dalam bentuk bahan pangan olahan, meningkatnya permintaan kedelai di masa depan menunjukkan semakin terbukanya peluang pengembangan industri rumah tangga untuk memproduksi bahan pangan tersebut. Kebutuhan akan kedelai sebagai bahan baku agroindustri saat ini tidak dapat dipenuhi oleh produksi kedelai dalam negeri baik dari segi kualitas maupun kuantitas. Hal ini menyebabkan kebutuhan akan kedelai impor akan semakin besar. Kedelai yang dibutuhkan untuk bahan baku industri tampaknya tidak dapat dipenuhi oleh produksi kedelai dalam negeri, baik kualitas maupun kuantitasnya, sehingga menyebabkan kecenderungan permintaan kedelai impor semakin tinggi. Oleh karena itu, kebijakan tarif impor dalam menghadapi liberalisasi perdagangan dunia harus diatur sedemikian rupa dengan memperhatikan kepentingan produsen, konsumen, dan pemerintah. Kebijakan ini tetap diperlukan dalam mewujudkan kemandirian kedelai kualitas ekspor.

scholarly journals The Potential for REE and Associated Critical Metals in Karstic Bauxites and Bauxite Residue of Montenegro

Minerals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 975
Author(s):  
Slobodan Radusinović ◽  
Argyrios Papadopoulos
Keyword(s):  
Raw Materials ◽  
Bauxite Residue ◽  
Raw Material ◽  
Late Triassic ◽  
Critical Metals ◽  
Critical Elements ◽  
Secondary Raw Material ◽  
Increasing Demand ◽  
First Time ◽  
Critical Raw Materials

Research for critical raw materials is of special interest, due to their increasing demand, opulence of applications and shortage of supply. Bauxites, or bauxite residue after alumina extraction can be sources of critical raw materials (CRMs) due to their content of rare earth elements and other critical elements. Montenegrin bauxites and bauxite residue (red mud) are investigated for their mineralogy and geochemistry. The study of the CRM’s potential of the Montenegrin bauxite residue after the application of Bayer process, is performed for the first time. Montenegrin bauxites, (Jurassic bauxites from the Vojnik-Maganik and Prekornica ore regions from the Early Jurassic, Middle Jurassic-Oxfordian and Late Triassic paleorelief) are promising for their REE’s content (around 1000 ppm of ΣREE’s). More specifically, they are especially enriched in LREEs compared to HREEs. Regarding other CRMs and other elements, Ti, V, Zr, Nb, Sr and Ga could also be promising. In bauxite residue, the contents of Zr, Sr, V, Sc, La, Ce, Y, Ti and Nb are higher than those in bauxites. However, raw bauxites and bauxite residue as a secondary raw material can be considered as possible sources of CRMs.

scholarly journals Bioethanol Production from Fermentable Sugar Juice

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Hossain Zabed ◽  
Golam Faruq ◽  
Jaya Narayan Sahu ◽  
Mohd Sofian Azirun ◽  
Rosli Hashim ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Fossil Fuels ◽  
Raw Materials ◽  
Bacterial Species ◽  
Environmental Safety ◽  
Free Sugar ◽  
Bioethanol Production ◽  
Political Crises ◽  
Number Of Factors ◽  
Increasing Demand

Bioethanol production from renewable sources to be used in transportation is now an increasing demand worldwide due to continuous depletion of fossil fuels, economic and political crises, and growing concern on environmental safety. Mainly, three types of raw materials, that is, sugar juice, starchy crops, and lignocellulosic materials, are being used for this purpose. This paper will investigate ethanol production from free sugar containing juices obtained from some energy crops such as sugarcane, sugar beet, and sweet sorghum that are the most attractive choice because of their cost-effectiveness and feasibility to use. Three types of fermentation process (batch, fed-batch, and continuous) are employed in ethanol production from these sugar juices. The most common microorganism used in fermentation from its history is the yeast, especially,Saccharomyces cerevisiae, though the bacterial speciesZymomonas mobilisis also potentially used nowadays for this purpose. A number of factors related to the fermentation greatly influences the process and their optimization is the key point for efficient ethanol production from these feedstocks.

scholarly journals DEVELOPMENT AND RESEARCH OF A HIGH-PERFORMANCE ELECTRONIC DEVICE FOR OZONE SYNTHESIS IN A VIBRATION DRYER

2021 ◽  
pp. 15-23
Author(s):  
Oleh Tsurkan ◽  
Yurii Polievoda ◽  
Dmytro Prysyazhniuk
Keyword(s):  
High Performance ◽  
Electronic Device ◽  
Raw Materials ◽  
Low Frequency ◽  
Bactericidal Effect ◽  
Raw Material ◽  
Dynamic State ◽  
Separation Processes ◽  
Ozone Synthesis ◽  
General Method

The article analyzes the features of drying grain raw materials using a vibrating dryer, in which the drying agent is a mixture of heated air in combination with ozone of a certain concentration. Based on the analysis to intensify this process, we propose to develop a high-performance electronic device for ozone synthesis. The scientific study considers oscillations that increase and update the heat transfer surface regardless of the method of supply of the drying agent. Due to this, the removal of moisture intensifies, the drying speed increases. Having conducted a search and analyzed the process of vibration drying, we can say that in the future will progress two main trends in their development. This is the use of vibration in combination with the action of ozone on the raw material entering the drying. Ozone interacts with the membrane structure of bacteria, fungi, the structural unit of viruses, which leads to a violation of its barrier function and their death. The bactericidal effect of ozonation is superior to the effect of ultraviolet quartz radiation. Bactericidal effect from quartz irradiation for 60 minutes identical to the bactericidal effect of ozone for 3 minutes Ozone has a high penetrating ability and also shows antibacterial activity against gram-positive flora, Escherichia coli, epidermal staphylococcus. This method is the most effective general method of controlling the dynamic state of the processed raw materials. The analysis allows us to suggest possible solutions for the use of low-frequency oscillations for separation processes and outline the prospects for their application. It is proved that the existing equipment is used with significant energy consumption and high cost. The constructions and technologies considered in the work do not completely exhaust the possibilities of using vibration and ozone, although they testify to the expediency of their application and combination not only in agricultural production, but also in other industries in order to intensify processes and obtain quality products.

scholarly journals WORLD AND DOMESTIC EXPERIENCE OF BIOETHANOL PRODUCTION

2018 ◽  
Vol 40 (4) ◽  
pp. 50-57
Author(s):  
А.A. Dolinskyi ◽  
O. M. Obodovych ◽  
V.V. Sydorenko
Keyword(s):  
Treatment Process ◽  
Raw Materials ◽  
Raw Material ◽  
Bioethanol Production ◽  
Cost Component ◽  
Crystallinity Degree ◽  
Limited Output ◽  
The Usa ◽  
Pre Treatment ◽  
Materials Used

The paper presents an overview of bioetanol production technologies. It is noted that world fuel ethanol production in 2017 amounted to more than 27,000 million gallons (80 million tons). Eight countries, namely the USA, Brazil, the EU, China, Canada, Thailand, Argentina, India, together produce about 98% of bioethanol. In Ukraine, the volume of bioethanol production by alcoholic factories in recent years has been gradually increasing and amounted to 2,992.8 ths. dal in 2017. The production of ethanol as an additive to gasoline, with regard to the raw materials used, as well as the corresponding technologies, is historically divided into three generations. The first generation of biofuels produced from food crops rich in sugar or starch is currently dominant. Production of advanced biofuels from non-food crop feedstocks is limited. Output is anticipated to remain modest in the short term, as progress is needed to improve technology readiness. The main stages of bioethanol production from lignocellulosic raw materials are pre-treatment, enzymatic hydrolysis and fermentation. The pre-treatment process aims to reduce of sizes of raw material particles, provision of the components exposure (hemicellulose, cellulose, starch), provision of better access for the enzymes (in fermentative hydrolysis) to the surface of raw materials, and reduction of crystallinity degree of the cellulose matrix. The pre-treatment process is a major cost component of the overall process. The pre-treatment process is highly recommended as it gives subsequent or direct yield of the fermentable sugars, prevents premature degradation of the yielded sugars, prevents inhibitors formation prior hydrolysis and fermentation, lowers the processing cost, and lowers the demand of conventional energy in general. From the perspective of efficiency, promising methods of pre-treatment of lignocellulosic raw materials to hydrolysis are combined methods combining mechanical, chemical and physical mechanisms of influence on raw materials. One method that combines several physical effects on a treated substance is the discrete-pulsed energy input (DPIE) method. The DPIE method can be applied in the pre- treatment of lignocellulosic raw material in the technology bioethanol production for intensifying the process and reducing energy consumption. Ref. 15, Fig. 2.

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