scholarly journals Improvement of the liquid-jet sulfitators construction to increase the efficiency of sulfitation treatment of sugar production liquids

2021 ◽  
Vol 17 (4) ◽  
pp. 53-61
Author(s):  
V. O. Gorodetsky ◽  
S. O. Semenikhin ◽  
N. I. Kotlyarevskaya ◽  
M. M. Usmanov
Keyword(s):  
Sulfur Dioxide ◽  
Sugar Industry ◽  
Production Capacity ◽  
Cane Sugar ◽  
Plant Production ◽  
Liquid Jet ◽  
Sugar Production ◽  
Advantages And Disadvantages ◽  
Beet Sugar ◽  
Wide Range

The article discusses and analyzes the construction of liquid-jet sulfitators used in the beet sugar industry. The importance of sulfitation treatment in the sugar beet processing and raw cane sugar technology is noted and the main advantages of its use at various technological stages are given, namely, preparation of extractant used for diffusion sucrose extraction out of beet cossettes, thin juice processing, thick juice with B- and C-remelts processing, as well as raw cane sugar remelt processing. The advantages and disadvantages of liquid-jet sulfitators in comparison with other constructions are noted and criteria for their improvement are given. It has been noted that the created ejection, which sucks in the sulphitation gas into the contacting chamber, and the fact that the absorption of sulfur dioxide occurs on a larger surface than in other types of structures the main advantages of liquid-jet sulphitators. The main disadvantages are the short length of the contacting chamber, which is insufficient for ensuring complete absorption of sulfur dioxide, as well as instability of the generated ejection when the productivity changes. This determines the criteria given in the article for the improvement of liquid-jet sulfitators. The description of the developed construction of the sulphitator centrifugal-jet nozzle of sugar production liquids is given, which provides: the stability of the sulphitation gas supply in a wide range of plant productivity; stability of the hydroaerodynamic regime of the system «treated liquid – sulphitation gas» inside the sulphitator; sufficient contact time for complete dissolution in the treated liquid of the sulfur anhydride contained in the sulphitation gas. The advantages of the developed centrifugal-jet sulfitators in comparison with typical liquid-jet sulfitators are noted: ensuring the operation range of 50-120% of the nominal capacity (plant production capacity); significant reduction in the technical sulfur consumption for the sulphur anhydride production, which is used as a reagent for the sulfitation treatment of liquids in beet sugar processing; reduction of harmful emissions into the atmosphere due to 100 % sulfur anhydride dissolution in the treated liquid.

Excellent environmental performance of beet sugar production in the Netherlands

2020 ◽  
pp. 161-165
Author(s):  
Bertram de Crom ◽  
Jasper Scholten ◽  
Janjoris van Diepen
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Life Cycle ◽  
Environmental Impact ◽  
Water Consumption ◽  
Environmental Performance ◽  
Cane Sugar ◽  
Sugar Production ◽  
Beet Sugar ◽  
Glucose Syrup

To get more insight in the environmental performance of the Suiker Unie beet sugar, Blonk Consultants performed a comparative Life Cycle Assessment (LCA) study on beet sugar, cane sugar and glucose syrup. The system boundaries of the sugar life cycle are set from cradle to regional storage at the Dutch market. For this study 8 different scenarios were evaluated. The first scenario is the actual sugar production at Suiker Unie. Scenario 2 until 7 are different cane sugar scenarios (different countries of origin, surplus electricity production and pre-harvest burning of leaves are considered). Scenario 8 concerns the glucose syrup scenario. An important factor in the environmental impact of 1kg of sugar is the sugar yield per ha. Total sugar yield per ha differs from 9t/ha sugar for sugarcane to 15t/ha sugar for sugar beet (in 2017). Main conclusion is that the production of beet sugar at Suiker Unie has in general a lower impact on climate change, fine particulate matter, land use and water consumption, compared to cane sugar production (in Brazil and India) and glucose syrup. The impact of cane sugar production on climate change and water consumption is highly dependent on the country of origin, especially when land use change is taken into account. The environmental impact of sugar production is highly dependent on the co-production of bioenergy, both for beet and cane sugar.

The Archaeology of Cane Sugar Production: A Survey of Twenty years of Research in Cyprus

2001 ◽  
Vol 81 ◽  
pp. 305-335 ◽  
Author(s):  
Marie-Louise von Wartburg
Keyword(s):  
Sugar Industry ◽  
Cane Sugar ◽  
Western Mediterranean ◽  
Sugar Production ◽  
Contextual Approach ◽  
Research Topics ◽  
Industrial Archaeology ◽  
Written Information ◽  
New Information ◽  
First Time

The first research project in medieval industrial archaeology in Cyprus originated with the investigation of the Lusignan cane sugar production centre at Kouklia (Stavros Project); it became an incentive for the exploration of the establishments of the Hospitallers at Kolossi and the Cornaro family at Episkopi. Excavations at Kouklia-Stavros (1980–82 and 1987–91) recovered a sophisticated structure of milling and refining installations, and revealed new economic and technological aspects of this important, but thus far hardly explored industry of the island in Lusignan and Venetian times. The wealth of new information gained made it possible to understand for the first time thoroughly how Levantine cane sugar refineries actually worked. The contextual approach of the Stavros Project, interrelating archaeological evidence and written information, suggests further interesting research topics such as the repercussions of the sugar industry on social structure, settlement patterns, and environment, or the transfer of the methods and technology of sugar production from Islamic lands to the western Mediterranean, and finally to the Americas.

Considerations on the optimal processing capacity of beet sugar factories

2020 ◽  
pp. 363-379
Author(s):  
Rudolf Schick
Keyword(s):  
Sugar Industry ◽  
Cane Sugar ◽  
Production Costs ◽  
Processing Capacity ◽  
Transport Costs ◽  
Optimal Capacity ◽  
Optimal Processing ◽  
Beet Sugar ◽  
The Individual ◽  
The Cost

The economic situation of the European sugar industry is currently very tense. The expected introduction of a climate-neutral mode of operation by 2050 will require considerable investment in the coming decades. This will further strengthen the cost advantages of the cane sugar industry, which, in contrast to the beet sugar industry, has for many years been obtaining most of its energy requirements from the renewable fuel bagasse. In order to remain competitive with the cane sugar industry, further reductions in production costs are necessary. As it is hardly possible to increase efficiency through technological improvements, the most promising measures to reduce production costs will be to further increase the processing capacity of the individual factories and possibly extend the campaign. Using a simplified mathematical model, the influence of transport costs, labour costs and constant costs on the optimal capacity of beet sugar factories is investigated. The lowest production costs for white sugar are used as an optimality criterion.

Turning Javanese: The Domination of Cuba's Sugar Industry by Java Cane Varieties

Itinerario ◽  
2013 ◽  
Vol 37 (2) ◽  
pp. 101-120
Author(s):  
Ulbe Bosma ◽  
Jonathan Curry-Machado
Keyword(s):  
Sixteenth Century ◽  
Sugar Industry ◽  
Cane Sugar ◽  
Sugar Production ◽  
Scientific Methods ◽  
Technological Advances ◽  
Scientific Approach ◽  
Commercial Networks ◽  
Sphere Of Influence ◽  
Relative Scarcity

By the end of the nineteenth century and beginning of the twentieth, two islands had come to dominate global cane-sugar production. For most of the sixty-year period between 1870 and 1930, around half of the world's internationally traded crop came from Cuba and Java. The two islands had many topographical similarities that made them particularly well suited to the establishment of sugar plantations: both are relatively large islands with fertile soils and semi-tropical climate. They were also situated in regions that had been drawn into the European sphere of influence in the sixteenth century but that had only been lightly exploited before the nineteenth, when they were both well placed to assume leading roles in the satisfaction of the escalating demand for sugar in the industrialising societies of Europe and North America.However, Cuba and Java existed within two very distinct sets of imperial and commercial networks: Spanish and Atlantic, and Dutch and Indian Ocean respectively. As a result of this, while there have been a plethora of studies about cane agriculture and the sugar industry in each of the islands, there has been little effort to compare their histories or explore the interconnections between them. Only recently has a start been made to study systematically the “convergence and divergence” of the sugar industry in the two hemispheres and to compare the differences and similarities to be found in the paths followed by the two islands.Although the sugar industries of Cuba and Java took different directions, these were inextricably linked. While Cuban planters could exploit the availability of large areas of underused land to overcome the relative scarcity of labour, planters in Java took advantage of the relative abundance of labour to maximise yields from the more limited land available to them. As a consequence of this, Javanese planters influenced by the work of Cuban agronomist Álvaro Reynoso paid considerable attention to the development of scientific methods in cane cultivation. Meanwhile, Reynoso's ideas fell on deaf ears in his home island, where most planters ignored the need for a more scientific approach in the fields in favour of technological advances in the sugar factory and what they saw as their immediate commercial interests.

scholarly journals ECONOMIC ANALYSIS OF PRODUCTION OF ALCOHOL, POWER AND BIOCOMPOST IN SUGAR INDUSTRY OF KARNATAKA

2021 ◽  
Vol 9 (02) ◽  
pp. 144-151
Author(s):  
Asha D. M. ◽  
◽  
M. Ramanjaneyulu ◽  
Keyword(s):  
Sugar Industry ◽  
Production Capacity ◽  
Sugar Production ◽  
Economic Returns ◽  
Press Mud ◽  
Alcohol Production ◽  
Profit Analysis ◽  
Karnataka State ◽  
Sugar Mills ◽  
The Cost

Karnataka state stands 3rd position in terms of sugar production and 4th position in cultivation of sugarcane in the India. In fact, there are presently around 64 working sugar factories with annual crushing capacity of 3.29 lakh MT/day, cogeneration capacity of 1500 MW/day, alcohol production capacity of 2100 KLPD and ethanol production capacity of 1130 KLPD. In the year 2017-18, Karnataka sugar industry had crushed a total of 347.5 lakh MT of cane and produced around 36.87 Lakh MT of sugar. The sugar industry in Karnataka is able to manufacture sugar in such huge quantities due to the fact that sugarcane is abundantly available in the state. But, Karnataka encounters up and down situations of sugar production and price fluctuations after few years. However, it is realized that the importance of integrated sugar-energy complexes to counterbalance the problem of wide sugar price fluctuation in domestic market. In the present work we undertook the cost-profit analysis of production of alcohol, power and bio-compost in sugar industry of Karnataka. We found that the economic returns on capital invested on sugar mills in Karnataka would be stable, if co-products i.e. bagasse, molasses and press mud are efficiently used for production of bio-ethanol, power and bio-compost.

The “father of the beet sugar industry.” On the 200th anniversary of the death of Franz Carl Achard

2021 ◽  
pp. 216-221
Author(s):  
Hans-Heinrich Müller
Keyword(s):  
Sugar Industry ◽  
Sugar Production ◽  
200Th Anniversary ◽  
Beet Sugar ◽  
William Iii

On January 11, 1799, Franz Carl Achard approached the Prussian King Frederick William III and informed him that he was able to produce sugar from beet. The communication was accompanied by a treatise “Ueber die Bereitung des Zuckers aus der Runkel-Rübe” (On the preparation of sugar from beet), in which he explained in twenty paragraphs how to cultivate beet and establish sugar production.

COMPARATIVE EVALUATION OF EFFICIENCY OF METHODS OF SULFITATION AND ACIDIFICATION WITH SULFURIC ACID IN THE PROCESSING OF THE EXTRACTING BEET SUGAR PRODUCTION

2019 ◽  
Author(s):  
С.О. СЕМЕНИХИН ◽  
В.О. ГОРОДЕЦКИЙ ◽  
Н.М. ДАИШЕВА ◽  
Н.И. КОТЛЯРЕВСКАЯ
Keyword(s):  
Sulfuric Acid ◽  
Sulfur Dioxide ◽  
Production Capacity ◽  
Cost Effective ◽  
Total Cost ◽  
Advantages And Disadvantages ◽  
Negative Effect ◽  
Design Characteristics ◽  
Equipment And Pipelines ◽  
The Cost

Проведено сравнение технических преимуществ и недостатков способов сульфитации и подкисления серной кислотой при обработке экстрагента свеклосахарного производства. Рассчитана стоимость основного оборудования и материалов для каждой схемы обработки экстрагента с целью выявления наиболее экономически эффективного способа. Расчет проведен для сахарного завода, имеющего производственную мощность 5000 т свеклы в сутки. Установлено, что способ подкисления серной кислотой имеет одно техническое преимущество – простоту дозирования серной кислоты, но уступает способу сульфитации по суммарным затратам на оборудование и трубопроводы, составившим около 10 млн р. Способ сульфитации также имеет недостатки технического характера – зависимость абсорбции экстрагентом сернистого ангидрида от конструктивных характеристик сульфитационных установок и равномерности технологического потока, негативное влияние которых можно снизить путем применения современных сульфитаторов жидкостно-струйного типа, обеспечивающих стопроцентную утилизацию сернистого ангидрида в диапазоне от 50 до 120% от их расчетной производительности. Суммарные затраты на оборудование и трубопроводы при схеме сульфитационной обработки экстрагента составили около 7,7 млн р. Таким образом, реализация схемы сульфитации в 1,25 раза дешевле, чем схемы подкисления экстрагента серной кислотой. По стоимости реагента сульфитационная обработка примерно в 13 раз выгоднее по сравнению со схемой подкисления серной кислотой. Comparison of technical advantages and disadvantages of sulfitation and acidification methods by sulfuric acid in the treatment of extracting of sugar beet production was carried out. The cost of the main equipment and materials for each treatment scheme of the extracting is calculated in order to identify the most cost-effective way. The calculation was carried out for a sugar factory with a production capacity of 5000 tons of beets per day. It is established that the method of acidification with sulfuric acid has one technical advantage-the simplicity of dosing sulfuric acid, but is inferior to the method of sulfitation for the total cost of equipment and pipelines, amounting to about 10 million rubles. The sulfitation method also has technical disadvantages-the dependence of the absorption of sulfur dioxide by the extracting on the design characteristics of the sulfitation plants used and the uniformity of the process flow, the negative effect of which can be reduced by the use of modern liquid-jet sulfitators, providing 100% utilization of sulfur dioxide in the range from 50 to 120% of their design capacity. The total cost of equipment and pipelines in the scheme of sulfitation treatment of the extracting will be about 7,7 million rubles. Thus, the implementation of the sulfitation scheme is 1,25 times cheaper than the scheme of acidification of the extracting with sulfuric acid. Sulfitation treatment at the cost of the reagent is about 13 times more profitable compared to the scheme of acidification with sulfuric acid.

Falling film evaporators in beet and cane sugar industry

2016 ◽  
pp. 708-712
Author(s):  
Alexandre Mesmacque
Keyword(s):  
Distribution System ◽  
Sugar Industry ◽  
Thermal Power ◽  
Heating Surface ◽  
Cane Sugar ◽  
Falling Film ◽  
Film Evaporator ◽  
Cane Juice ◽  
Beet Sugar ◽  
Hydrostatic Head

The falling film evaporator has been widely used in the beet sugar industry for more than 30 years. This technology has been adapted and optimized for cane sugar factories addressing the increased risks of incrustation of the juice distribution system and heating surface due to an increased scaling propensity of cane juice. The developments carried out by Fives on falling film evaporator permitted the elimination of these problems. The absence of a hydrostatic head means that for the same thermal power, lower Ts are possible, especially for intermediate and last effects of the evaporator station. Thus, reconfigurations of the bleedings may be possible, achieving lower steam consumptions than can be obtained with other evaporator technologies.

scholarly journals The impact of Clean Spark Spread expectations on storage hydropower generation

2021 ◽  
Author(s):  
Claudia Condemi ◽  
Loretta Mastroeni ◽  
Pierluigi Vellucci
Keyword(s):  
Large Scale ◽  
Production Capacity ◽  
Energy Transition ◽  
Green Energy ◽  
Electric Power System ◽  
Plant Production ◽  
Hydropower Generation ◽  
Wide Range ◽  
The Right ◽  
The Impact

AbstractStorage hydropower generation plays a crucial role in the electric power system and energy transition because it is the most widespread power generation with low greenhouse gas emissions and, moreover, it is relatively cheap to ramp up and down. As a result, it provides flexibility to the grid and helps mitigate the short-term production uncertainty that affects most green energy technologies. However, using water in reservoirs represents an opportunity cost, which is related to the evolution of plant production capacity and production profitability. As the latter is related to a wide range of types of variables, in order to incorporate it in a large-scale prediction model it is important to select the variables that impact most on storage hydropower generation. In this paper, we investigate the impact of the variables influencing the choices of price maker producers, and, in particular we study the impact of Clean Spark Spread expectations on storage hydroelectric generation. In this connection, using entropy and machine learning tools, we present a method for embedding this expectations in a model to predict storage hydropower generation, showing that, for some time horizon, expectations on CSS have a greater impact than expectations on power prices. It is shown that, if the right mix of power price and CSS expectations is considered, the prediction error of the model is drastically reduced. This implies that it is important to incorporate CSS expectations into the storage hydropower model.

Composition, formation, removal and avoidance of scales in evaporators and heat exchangers of sugar factories

2013 ◽  
pp. 721-725
Author(s):  
Dirk Grossmann ◽  
Josef Gryc ◽  
Frank Stanjek
Keyword(s):  
Cane Sugar ◽  
Sugar Production ◽  
Laboratory Studies ◽  
Operation Conditions ◽  
Composition Formation ◽  
Beet Sugar ◽  
Long Time ◽  
Scale Composition ◽  
Factory Operation ◽  
Specific Scale

The intention of this paper is to give an overview about scaling in sugar factories, with the focus set on beet sugar factories but also including aspects which are specific for cane sugar production. Based on the analyses of some thousand scale samples collected during the last 40 years from sugar factories all over the world typical scale compositions and their abundance depending on factors like region, operation conditions of the factory, effect and type of evaporator are shown. Long time trends in scale composition and their relation to changing conditions in the sugar production are extracted from these data, e.g. the influence of longer campaigns (up to 140 days) on the scale composition in beet sugar factories in Central Europe. Based on its composition and the conditions during factory operation the formation of a specific scale is explained. For each type of scale a method for the removal, proven by laboratory studies and experience gained in the factories, is presented and recommendations are given to reduce or avoid the formation of a specific scale.

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