Economic Feasibility of the Sugar Beet-to-Ethylene Value Chain

ChemSusChem ◽  
2013 ◽  
Vol 6 (9) ◽  
pp. 1625-1630 ◽  
Author(s):  
Jeroen Althoff ◽  
Kees Biesheuvel ◽  
Ad De Kok ◽  
Henk Pelt ◽  
Matthijs Ruitenbeek ◽  
...  
Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7366
Author(s):  
Danai Frantzi ◽  
Anastasia Zabaniotou

Waste-based feedstocks and bioenergy intermediate carriers are key issues of the whole bioenergy value chain. Towards a circular economy, changing upcycling infra-structure systems takes time, while energy-from-waste (EfW) technologies like waste pyrolysis and gasification could play an integral part. Thus, the aim of this study is to propose a circular economy pathway for the waste to energy (WtE) thermochemical technologies, through which solid biomass waste can be slowly pyrolyzed to biochar (main product), in various regionally distributed small plants, and the pyro-oils, by-products of those plants could be used as an intermediate energy carrier to fuel a central gasification plant for syngas production. Through the performed review, the main parameters of the whole process chain, from waste to syngas, were discussed. The study develops a conceptual model that can be implemented for overcoming barriers to the broad deployment of WtE solutions. The proposed model of WtE facilities is changing the recycling economy into a circular economy, where nothing is wasted, while a carbon-negative energy carrier can be achieved. The downstream side of the process (cleaning of syngas) and the economic feasibility of the dual such system need optimization.


Proceedings ◽  
2020 ◽  
Vol 36 (1) ◽  
pp. 158
Author(s):  
Stanley Tamusange Nkalubo ◽  
Richard Ariong ◽  
Gabriel Luyima ◽  
Clare Mukankusi Mugisha ◽  
Jean Claude Lubyogo

Common bean fresh pod is a niche market product consumed worldwide including in Eastern Africa region. It is more preferred to dry bean due to the fresh taste and ease to cook. A lot of research has been done on production and disposition of dry bean product; however, little information is available on production and marketing of fresh bean pod in Uganda. The general observation indicates wide consumption of fresh bean pods however, there is limited information on its entire value chain, yet, its value cannot be undermined. Based on this background, a reconnaissance study was undertaken in Mpigi district, a major fresh bean growing area and eight retailing markets within Uganda’s capital, Kampala, to understand the economic feasibility of fresh bean pod market. Using qualitative approaches, farmer and market analysis was conducted to explore and understand fresh bean market dynamics. The results show that there are over 10 varieties being sold for fresh pod, unstandardized weight measures are being used, and price variation of over 50%. Additionally, unsatisfied demand for fresh pod beans is 45%. The results indicate existence of a lucrative fresh pod market valued at more than USD 2.0 million within Kampala and suburbs. It was also revealed that production faces significant gaps in seed availability to ensure consistent quality supply to the market while at selling points, bronzing effect was a major challenge leading to product deterioration. Thus, interventions are needed to eliminate the existing production and marketing challenges for a sustainable fresh bean pod business.


Author(s):  
MA Rahman ◽  
M Islam ◽  
MM Begum ◽  
S Arfin

A study was carried out to evaluate the suitability and effectiveness of improved postharvest management practices (IPMP) in enhancing the eggplant (Solanum melongena L.) value chain of Bangladesh. In IPMP, sorting, grading and washing of eggplants were done, and packed them in plastic crates with or without modified atmosphere packaging (MAP). Traditional postharvest management practices (TPMP) existed in the value chain was used as control treatment. IPMP including the use of plastic crate with MAP reduced weight losses by 26.7 and 38.0% at wholesale and 2-days display at retail outlets. The total postharvest loss of eggplant handled with TPMP including packed in jute sack was 40.0%, whereas it was only 4.5% when followed IPMP. The reduction of postharvest losses of eggplants handled with IPMP amounted to 88.7%, and 100.0% fruit could be sold at retail outlets. The additional weekly gross income of a small trader by selling 1000 kg eggplant handled with IPMP comprising the plastic crates with MA packaging would be BDT 17,190 (USD 207). Int. J. Agril. Res. Innov. Tech. 9(2): 35-41, December 2019


2020 ◽  
Vol 20 (4) ◽  
Author(s):  
An Notenbaert ◽  
Jeroen C.J. Groot ◽  
Mario Herrero ◽  
Celine Birnholz ◽  
Birthe K. Paul ◽  
...  

AbstractThe gap between milk demand and domestic supply in Tanzania is large and projected to widen. Meeting such demand through local production of affordable milk presents an opportunity to improve the welfare of producers and market agents through the income and employment generated along the value chain (VC). Efforts to maximize milk yields, production and profitability need to be balanced with long-term sustainability. We combined environmental and economic ex-ante impact assessments of four intervention scenarios for two production systems in the Tanzanian dairy VC using the CLEANED model and an economic feasibility analysis. Intervention scenarios propose increases in milk production through (i) animal genetic improvement, (ii) improved feed, (iii) improved animal health and (iv) a package combining all interventions. Results show that economically feasible farm-level productivity increases of up to 140% go hand-in-hand with increased resource-use efficiency and up to 50% reduction in greenhouse gas (GHG) emission intensities. Absolute increases in water, land and nitrogen requirements in mixed crop-livestock systems call for careful management of stocks and quality of these resources. An overall rise in GHG emissions is expected, with a maximum of 53% increase associated with an 89% increase in milk supply at VC level. The CLEANED tool proved effective to evaluate livestock interventions that improve incomes and food security with minimal environmental footprint. Here, our simulations suggest that due to current low productivity, the greatest efficiency gains in combination with relatively low increases in total GHG emissions can be made in the extensive agro-pastoral dairy systems, which represent the majority of herds.


2001 ◽  
Vol 36 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Khalid Fares ◽  
C. M. G. C. Renard ◽  
Qamar R'Zina ◽  
Jean-Francois Thibault
Keyword(s):  

1998 ◽  
Vol 23 (4) ◽  
pp. 347-353
Author(s):  
N. B. Kift ◽  
F. A. Mellon ◽  
A. M. Dewar ◽  
A. F. G. Dixon
Keyword(s):  

1991 ◽  
Vol 83 (1) ◽  
pp. 7-16 ◽  
Author(s):  
Christina Lind ◽  
Christer Hallden ◽  
Ian M. Moller
Keyword(s):  

1995 ◽  
Vol 94 (2) ◽  
pp. 342-350 ◽  
Author(s):  
Steffen Lenzner ◽  
Kurt Zoglauer ◽  
Otto Schieder

Sign in / Sign up

Export Citation Format

Share Document