Development of a Dynamic Modeling Approach to Simulate a Segmented Distillation Column for Flexible Operation

2021 ◽  
Vol 5 (4) ◽  
pp. 66
Author(s):  
Bastian Bruns ◽  
Henrik Fasel ◽  
Marcus Grünewald ◽  
Julia Riese
Keyword(s):  
Distillation Column ◽  
Process Equipment ◽  
Feed Stream ◽  
Dynamic Simulations ◽  
Distillation Columns ◽  
The Past ◽  
Start Up ◽  
Time Required ◽  
Flexible Operation

The need for flexible process equipment has increased over the past decade in the chemical industry. However, process equipment such as distillation columns have limitations that significantly restrict flexible operation. We investigate a segmented tray column designed to allow flexible operation. The design consists of radial trays connected at the downcomer of each tray. Each segment can be operated separately, but depending on the capacity of the feed stream, additional segments can be activated or deactivated. The connection between the trays aims to transfer liquid from one stationary segment to the adjacent inactive segment, thereby reducing the time required for the start-up process. In a case study on the separation of methanol and water, we perform dynamic simulations to assess the reduction in the start-up time of inactive segments. The results confirm the advantages over standard tray designs. The segmented distillation column is a step towards improving the flexibility of separation operations.

OPEN INNOVATION AND OPEN PRODUCTION: A CASE OF A TECHNOLOGY SUPPLIER/USER COLLABORATION IN THE PROCESS INDUSTRIES

2015 ◽  
Vol 19 (02) ◽  
pp. 1550022 ◽  
Author(s):  
THOMAS LAGER ◽  
KENT TANO ◽  
NIKOLA ANASTASIJEVIC
Keyword(s):  
Single Case ◽  
Process Equipment ◽  
Process Technology ◽  
Theoretical Frameworks ◽  
Process Industries ◽  
Research Instrument ◽  
Start Up ◽  
New Process ◽  
Pros And Cons

In the process industries, it is rather uncommon for companies to develop new process technology or even to manufacture new process equipment. As a result, they are highly dependent upon various kinds of equipment suppliers in their effort to acquire new process equipment in order to improve their operating performance. Two previously presented theoretical frameworks for collaboration during the innovation and operations stages have been merged for use as a research instrument in a single case study on the collaboration between a mineral producing company and a supplier of technology and equipment. The evidence from this study shows that it is beneficial for collaborating partners to engage in upfront discussions of pros and cons before entering collaborations. Collaboration during the "innovation stage" was determined to be an interesting avenue to follow for both parties. The need for collaboration during the production stage seemed to be most important during the "start-up" and "optimisation and upgrading" phases. The combined frameworks have proven to be a powerful research instrument for studying the selected kind of collaboration.

scholarly journals A start-up in interaction with its partners

IMP Journal ◽  
2016 ◽  
Vol 10 (1) ◽  
pp. 50-80 ◽  
Author(s):  
Tamara Oukes ◽  
Ariane Raesfeld von
Keyword(s):  
Longitudinal Case Study ◽  
Content Type ◽  
The Past ◽  
Focal Firm ◽  
Start Up ◽  
Process And Outcome ◽  
Start Ups ◽  
The Relationship ◽  
Practical Implications

Purpose – Start-ups are companies that are not yet embedded in a pre-existing network of relationships. Studies that researched how start-ups act in their relationships focused on just one type of action and assumed that start-ups are autonomous in how they choose to act. However, organisational action in relationships is both interactive and dynamic. Therefore, the purpose of this paper is to investigate how a start-up interacts with its partners over time. Design/methodology/approach – The research aim is addressed through a longitudinal case study of a start-up in the medical device business. It was analysed how this start-up and its six key partners acted and reacted during 18 interactions episodes, what triggered these actions and what the outcomes of their actions were. In addition, the researchers explored if and how the subsequent episodes were related. Findings – First, the case shows that the past and the future affect current episodes. Second, it shows that action was triggered by both internal and external events which could expand or constrain opportunities for future interactions. Third, the findings show that there was a pattern in the interaction modes used during the relationship. Fourth, the findings show that the initial mode of interaction was often imitated by the counterparty. Finally, it is shown that there are clear links between the trigger, interaction process and outcome in an interaction episode. Research limitations/implications – The results indicate that besides the focal firm, partners should always be actively and directly involved in any research into organisational action. Moreover, action in relationships should be characterised as a dynamic process that is in a state of continual change. Practical implications – Managers of start-ups: can influence the outcomes of their relationships through their actions; have to react to both opportunities and conflicts in their relationships; can rely on their network to solve conflicts; and should closely consider their own actions and their counterparty’s actions. Originality/value – The research is valuable because it studies the interactive and dynamic nature of start-ups’ action in relationships.

scholarly journals Blockchain Technology and Sustainable Business Models: A Case Study of Devoleum

2021 ◽  
Vol 13 (10) ◽  
pp. 5619
Author(s):  
Francesco Mercuri ◽  
Gaetano della Corte ◽  
Federica Ricci
Keyword(s):  
Business Models ◽  
Single Case ◽  
Food Sector ◽  
Sustainable Business ◽  
Case Study Methodology ◽  
Blockchain Technology ◽  
Start Up ◽  
Sustainable Business Models ◽  
Time Required

The lack of transparency along global supply chains poses challenges in the areas of fraud, pollution, human rights abuses, and inefficiencies. In this context, the blockchain has the potential to offer an unprecedented level of transparency, with a shared and decentralized database in which immutable and encrypted copies of information are stored on every node of the network. Using a single case study methodology, this paper investigates how blockchain technology can improve and facilitate sustainable business models. The aim of this paper is to understand how blockchain technology can drive the development of sustainable business models. Recent studies show the importance of sustainability perspectives for business models. The study was conducted by applying the CAOS (“Characteristic, Ambience, Organization, Start-up”) model to a start-up operating in the agri-food sector, not yet institutionalized, called Devoleum. The results indicate that blockchain technology can increase sustainability through realizing the traceability, security, and non-manipulability of information, which are particularly useful in the agri-food sector. Furthermore, the absence of intermediaries in blockchain technology contributes to reducing transaction costs and the time required to consolidate relations between the company and the environment. The limitations of this study must be identified in that the company is operational but not yet incorporated.

From hard to soft: theory and Neolithic studies in Scotland

2011 ◽  
Vol 33 (1-2) ◽  
pp. 7-19
Author(s):  
Kenneth Brophy
Keyword(s):  
The Past

The Scottish Theoretical Archaeology Group (STAG) conference organisers expressed some doubts about how far theory has changed, and impacted, archaeological establishment and academia in Scotland. In this paper, I will argue that Scotland is certainly not isolated in a theoretical sense, although in the past, Scottish archaeology could be accused of being theoretically conservative, or at least dependent on ideas and models developed elsewhere. A case-study looking at Neolithic studies will be used to illustrate that despite some recent critical historiographies of the study of the period in Scotland, archaeologists in Scotland and those working with Scottish material have been theoretically innovative and in step with wider paradigm changes. The study of the Neolithic in Scotland, it could be argued, has been shaped by theory more than the study of any other period; we are not isolated, but rather part of wider networks of discourse.

THE URBAN MIGRANT FUTURE DESIRE: A STUDY OF REVERSE MIGRATION IN MALAYSIA

2017 ◽  
Vol 3 (2) ◽  
pp. 177
Author(s):  
Nur Huzeima Mohd Hussain ◽  
Hugh Byrd ◽  
Nur Azfahani Ahmad
Keyword(s):  
Oil And Gas ◽  
Industrial Society ◽  
Peak Oil ◽  
Population Mobility ◽  
Reverse Migration ◽  
The Past ◽  
Urban Migrants ◽  
Urban Migrant ◽  
Oil Crisis

Globalisation combined with resources of oil and gas has led to an industrial society in Malaysia.  For the past 30 years, rapid urban growth has shifted from 73% rural to 73% urban population. However, the peak oil crisis and economic issues are threatening the growth of urbanisation and influencing the trends of population mobility. This paper documents the beginnings of a reverse migration (urban-to-rural) in Malaysia.  The method adopted case study that involves questionnaires with the urban migrants to establish the desires, definite intentions and reasons for future migration. Based on this data, it predicts a trend and rate of reverse migration in Malaysia. 

Conservation and Preservation of Nature Reserves, Monuments andSpecial Architectural or Historic Interest in Nigeria: Towards Promotion of Sustainable Cultural Tourism

2015 ◽  
Vol 3 (2) ◽  
pp. 201-218
Author(s):  
Francis Chuma Osefoh
Keyword(s):  
Cultural Tourism ◽  
Nature Reserves ◽  
Communication Link ◽  
Built Environments ◽  
Tourist Attraction ◽  
The Past ◽  
Personal Experiences ◽  
Historical Heritage ◽  
Developed Nations

Some of the renowned world tourism countries have special peculiarities in character in terms of their nature reserves and built environments; that made them stand out for their attractions and visits. These qualities range from conservation and preservation of nature reserves, built environments- epoch architectural supports over the years; historical heritage; political; religious; socio-economic; cultural; and  high technology that enhance culture. The virtues of multi- ethnic groups and multi- cultural nature gave Nigeria a rich cultural heritage, and she is blessed with natural wonders, unique wildlife, and a very favorable climate. More often than not less attention and importance are placed over the nature reserves and built environments to the detriment of tourism in lieu of other sectors. Summarily the country lacks the culture of conservation and preservation of her abundant resources to promote cultural tourism. Case study strategy was applied in the research tours with reports of personal experiences, documentaries and analyses of sites visited in Europe and Nigeria were highlighted with references to their attributes in terms of structures and features that made up the sites as relate to culture and attraction.The task in keeping rural, city landscapes and nature reserves alive stands out as the secret of communication link from the past to present and the future; which tourism developed nations reap as benefits for tourist attraction.

The Local Government of Kulon Progo Regency Innovation in Subduing Capitalism through Community Empowerment

2020 ◽  
Vol 4 (2) ◽  
pp. 229
Author(s):  
Muhammad Eko Atmojo ◽  
Helen Dian Fridayani
Keyword(s):  
Qualitative Method ◽  
Positive Impact ◽  
Community Empowerment ◽  
Case Study Approach ◽  
Study Approach ◽  
The Past ◽  
The People ◽  
District Government ◽  
The Government

Kulon Progo Regency is one of the districts that has many innovations, one of which is community empowerment in collaboration with a modern shop abbreviated as the shop name owned by the people (tomira). This research was motivated by the achievements of the Kulon Progo district government in carrying out development and innovation in the development of the Kulon Progo region by fully involving the Kulon Progo district community through community empowerment. This initiative was taken by the government of Kulon Progo Regency to improve community empowerment and protect the people of Kulon Progo Regency from various economic threats. Considering that in the past few years many modern shops have mushroomed in each district/city, so this is what makes Kulon Progo Regency move quickly to empower the community by collaborating between MSMEs or cooperative with modern shops. This study uses a qualitative method which case study approach. With the empowerment that has been done, the original products of Kulon Progo Regency or local products can be traded in modern stores so that local products in Kulon Progo Regency can compete with national products in these modern stores. The existence of such cooperation will indirectly improve the image of Kulon Progo Regency and lift the original products of Kulon Progo Regency. The lifting of the original products of Kulon Progo Regency will have a positive impact on the community, where indirectly the economy of the community will increase so that there will be prosperity for the community. Kabupaten Kulon Progo adalah salah satu kabupaten yang memiliki banyak inovasi, salah satunya adalah pemberdayaan masyarakat bekerja sama dengan toko modern disingkat nama toko yang dimiliki oleh masyarakat (tomira). Penelitian ini dilatarbelakangi oleh pencapaian pemerintah kabupaten Kulon Progo dalam melakukan pengembangan dan inovasi dalam pengembangan wilayah Kulon Progo dengan melibatkan sepenuhnya masyarakat kabupaten Kulon Progo melalui pemberdayaan masyarakat. Inisiatif ini diambil oleh pemerintah Kabupaten Kulon Progo untuk meningkatkan pemberdayaan masyarakat dan melindungi masyarakat Kabupaten Kulon Progo dari berbagai ancaman ekonomi. Menimbang bahwa dalam beberapa tahun terakhir banyak toko-toko modern telah menjamur di setiap kabupaten/kota, jadi inilah yang membuat Kabupaten Kulon Progo bergerak cepat untuk memberdayakan masyarakat dengan berkolaborasi antara UMKM atau bekerjasama dengan toko-toko modern. Penelitian ini menggunakan metode penelitian kualitatif dengan pendekatan studi kasus, dengan metode yang digunakan adalah dokumentasi. Dengan pemberdayaan yang telah dilakukan, produk asli Kabupaten Kulon Progo atau produk lokal dapat diperdagangkan di toko modern sehingga produk lokal di Kabupaten Kulon Progo dapat bersaing dengan produk nasional di toko modern ini. Adanya kerjasama tersebut secara tidak langsung akan meningkatkan citra Kabupaten Kulon Progo dan mengangkat produk asli Kabupaten Kulon Progo. Pencabutan produk asli Kabupaten Kulon Progo akan berdampak positif bagi masyarakat, di mana secara tidak langsung perekonomian masyarakat akan meningkat sehingga akan ada kesejahteraan bagi masyarakat.

Sign in / Sign up

Export Citation Format

Share Document