scholarly journals Techno-economic feasibility study of bioethanol production from a combined cellulose and sugar feedstock in Nigeria: 2-economic analysis

2018 ◽  
Vol 37 (4) ◽  
pp. 921 ◽  
Author(s):  
T Oyegoke ◽  
F Dabai
Keyword(s):  
Economic Analysis ◽  
Feasibility Study ◽  
Economic Feasibility ◽  
Bioethanol Production

Economic assessment of bioethanol production from maize in South Africa

2018 ◽  
Vol 16 (6) ◽  
pp. 973-994
Author(s):  
Ayanda Ndokwana ◽  
Stanley Fore
Keyword(s):  
South Africa ◽  
Feasibility Study ◽  
Quantitative Methods ◽  
Raw Materials ◽  
Economic Feasibility ◽  
Bioethanol Production ◽  
Economic Data ◽  
Arable Soils ◽  
Content Type ◽  
Qualitative And Quantitative

Purpose This research investigated the economic feasibility of using maize as feedstock to produce bioethanol in South Africa. The purpose of the study was to generate economic data from a maize-fed bioethanol plant and use it to perform a comparative analysis between the profitability that is generated by the maize exports to Southern African Development Community (SADC) countries and the profitability generated by the bioethanol plant in South Africa. Design/methodology/approach This study used a combination of qualitative and quantitative methods to gather data. The mixed method approach was chosen owing to the nature of the study which required an analysis of qualitative and quantitative data in order to achieve its objectives. Findings The findings from a qualitative instrument indicated that a majority of respondents were in favour of the decision of excluding maize for bioethanol production made by the South African Government. Findings from quantitative analysis revealed that the profitability of the bioethanol plant was largely influenced by the prices of feedstock and bioethanol. Research limitations/implications This research was a deterministic feasibility study which ignores the risk associated with price fluctuation of raw materials and products. A probabilistic feasibility study was recommended (Monte Carlo simulation). Such economic data can also help policymakers and investors to make informed decisions. Originality/value The study recommended the need to produce bioethanol from the maize cultivated in available arable soils in South Africa, thus alleviating the cost burden of importing oil and obnoxious environmental effects.

scholarly journals Techno-Economic Feasibility Study of Management Palm-Oil Fronds Into Compost and Mulch in West Aceh District

2018 ◽  
Vol 11 (1) ◽  
pp. 71-76
Author(s):  
Ramayanti Bulan ◽  
Safrizal Safrizal ◽  
Muhammad Yasar ◽  
Saiful Bahri
Keyword(s):  
Economic Analysis ◽  
Feasibility Study ◽  
Palm Oil ◽  
Payback Period ◽  
Economic Feasibility ◽  
Processing Unit ◽  
Management Scenarios ◽  
Employment Opportunities ◽  
Centralized Management ◽  
Economic Criteria

Abstract. The development of palm-oil plantations aims to create employment opportunities, improve the prosperity of community and income country. However, palm-oil plantation waste in the form of fronds has not been optimally managed. The aims of this research is to study of palm-oil fronds management feasibility in palm-oil plantations to be compost and mulch. The goals of this research is to study of palm-oil fronds management feasibility in palm-oil plantations to be compost and mulch. The study was conducted on one of the palm-oil plantations in West Aceh District. The techno-economic feasibility study refers to the use of all the necessary equipment and machinery in the management of palm-oil fronds. Factors to be considered in techno-economic analysis are NPV, Net B/C, IRR, Payback Period and BEP. The palm-oil plantation area studied is 576 ha which has the potential to produce as palm-oil fronds as much as 781 unit/day. Palm-oil fronds management uses two scenarios: centralized management scenarios (designed for only one processing unit) and decentralization (designed into two processing units). The results show that the techno-economic criteria of NPV, Net B/C, IRR, payback period and BEP for scenario one are Rp 766,518,333; 1.25; 25%; 8.09 years; 23,290.72 tons, respectively. The techno-economic criteria of NPV, Net B/C, IRR, payback period and BEP for scenario two are Rp 487,406,792; 1.07; 15%; 14.23 years; 40,935.51 tons, respectively. The value of these techno-economic criteria suggests that the management of palm-oil fronds from centralized scenarios is more feasible to undertake than the decentralization scenario. Studi Kelayakan Tekno-Ekonomi Pengelolaan Pelepah Sawit Menjadi Kompos dan Mulsa di Kabupaten Aceh Barat Abstrak. Pengembangan perkebunan kelapa sawit bertujuan untuk menciptakan kesempatan kerja, meningkatkan kesejahteraan masyarakat dan sektor penghasil devisa negara. Namun, Limbah perkebunan kelapa sawit berupa pelepah sawit belum dikelola secara optimal. Tujuan penelitian ini adalah melakukan kajian kelayakan tekno-ekonomi dari pengelolaan limbah pelepah sawit menjadi kompos dan mulsa. Kajian dilaksanakan pada salah satu perkebunan kelapa sawit di Kabupaten Aceh Barat. Studi kelayakan tekno-ekonomi merujuk pada penggunaan seluruh alat dan mesin yang diperlukan dalam pengelolaan limbah pelepah sawit tersebut. Faktor yang dipertimbangkan diantara adalah NPV, Net B/C, IRR, Payback Period dan BEP. Luas perkebunan yang dikaji adalah 576 ha yang berpotensi menghasilkan pelepah sawit sebanyak 781 pelepah/hari. Potensi limbah pelepah sawit tersebut ditangani dengan dua skenario yaitu skenario pengelolaan sentralisasi (didesain hanya satu unit pengolahan) dan desentralisasi (didesain menjadi dua unit pengolahan). Hasilnya menunjukkan bahwa kriteria tekno-ekonomi NPV, Net B/C, IRR, payback period dan BEP untuk skenario satu masing-masing adalah Rp 766,518,333; 1.25; 25%; 8.09 tahun; 23,290.72 ton. Kriteria tekno-ekonomi NPV, Net B/C, IRR, payback period dan BEP untuk skenario dua masing-masing adalah Rp 487,406,792; 1.07; 15%; 14,23 tahun; 40,935.51 ton. Nilai kriteria tekno-ekonomi ini mengisyaratkan bahwa pengelolaan pelepah sawit skenario sentralisasi lebih layak untuk dilakukan dari pada skenario desentralisasi. 

Techno-economic feasibility study on the application of downdraft gasifier in small-scale red clay bricks industries

2021 ◽  
Author(s):  
Murugan Paradesi Chockalingam ◽  
Navaneethakrishnan Palanisamy ◽  
Saji Raveendran Padmavathy ◽  
Edwin Mohan ◽  
Beno Wincy Winsly ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Economic Feasibility ◽  
Small Scale ◽  
Red Clay ◽  
Downdraft Gasifier ◽  
Clay Bricks

scholarly journals Solar Integrated Anaerobic Digester: Energy Savings and Economics

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4292
Author(s):  
Lidia Lombardi ◽  
Barbara Mendecka ◽  
Simone Fabrizi
Keyword(s):  
Anaerobic Digestion ◽  
Natural Gas ◽  
Economic Analysis ◽  
Thermal Energy ◽  
Economic Feasibility ◽  
Solar Thermal ◽  
Base Case ◽  
Economic Sustainability ◽  
Solar Thermal Energy ◽  
Solar Integration

Industrial anaerobic digestion requires low temperature thermal energy to heat the feedstock and maintain temperature conditions inside the reactor. In some cases, the thermal requirements are satisfied by burning part of the produced biogas in devoted boilers. However, part of the biogas can be saved by integrating thermal solar energy into the anaerobic digestion plant. We study the possibility of integrating solar thermal energy in biowaste mesophilic/thermophilic anaerobic digestion, with the aim of reducing the amount of biogas burnt for internal heating and increasing the amount of biogas, further upgraded to biomethane and injected into the natural gas grid. With respect to previously available studies that evaluated the possibility of integrating solar thermal energy in anaerobic digestion, we introduce the topic of economic sustainability by performing a preliminary and simplified economic analysis of the solar system, based only on the additional costs/revenues. The case of Italian economic incentives for biomethane injection into the natural gas grid—that are particularly favourable—is considered as reference case. The amount of saved biogas/biomethane, on an annual basis, is about 4–55% of the heat required by the gas boiler in the base case, without solar integration, depending on the different considered variables (mesophilic/thermophilic, solar field area, storage time, latitude, type of collector). Results of the economic analysis show that the economic sustainability can be reached only for some of the analysed conditions, using the less expensive collector, even if its efficiency allows lower biomethane savings. Future reduction of solar collector costs might improve the economic feasibility. However, when the payback time is calculated, excluding the Italian incentives and considering selling the biomethane at the natural gas price, its value is always higher than 10 years. Therefore, incentives mechanism is of great importance to support the economic sustainability of solar integration in biowaste anaerobic digestion producing biomethane.

Techno-economic analysis of vanillin production from Kraft lignin: Feasibility study of lignin valorization

2020 ◽  
Vol 299 ◽  
pp. 122559 ◽  
Author(s):  
Nawaporn Khwanjaisakun ◽  
Suksun Amornraksa ◽  
Lida Simasatitkul ◽  
Pongtorn Charoensuppanimit ◽  
Suttichai Assabumrungrat
Keyword(s):  
Economic Analysis ◽  
Feasibility Study ◽  
Kraft Lignin ◽  
Lignin Valorization
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