Cogeneration plant in an olive sludge industry

Celma, Antonio Ruiz; Rodríguez, Fernando López

doi:10.1016/j.applthermaleng.2009.05.017

Cited by 11 publications

(5 citation statements)

References 9 publications

(11 reference statements)

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“…The most favourable working conditions of the gasifier were related to the gas flow rate of 1.4m 3 /h. Then, the generator gas was created with the highest calorific value-9.2MJ/n m 3 . The increase in the air stream directed the process towards the combustion reaction.…”

Section: Resultsmentioning

confidence: 99%

“…Considering that, the research centers in these countries undertake activities aimed at identifying the suitability of waste fro m the production of olive oil (including seeds) for local energy needs. The key high-efficiency way of using these wastes is their combustion [3,4,5]. Because these wastes are of agricultural origin, in their composition we can expect higher content of alkali metal chlorates, mainly KCl.…”

Section: Introductionmentioning

confidence: 99%

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The influence of the conversion medium stream on the gasification process of olive pits

Król

Poskrobko

2019

EPJ Web Conf.

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The paper presents the results of research on gasification of olive pits and production of a generator gas with calorific value enabling its combustion in microturbines. Gasification was carried out in a laboratory gasification reactor, where the converting factor was air. The influence of the flow rate of its stream on the composition of the generator gas was investigated. The research involved searching for optimal process conditions for gasification of this biomass, to obtain a generator gas with an increased CH4 content (methane is the most calorific component).The air flow in subsequent tests was 0.5m3/h, 0.85m3 /h, 1.1m3/h,. 1.4m3/h 1.7m3/h. The quantitative composition of the generated generator gases differed. These conditions were obtained with an air flow of 1.4m3/h, in a tubular reactor, at the bed temperature T3= 456–462oC. A gas was obtained, with a calorific value of 9.2MJ/m3, characteristic for the following gas composition: H2=3.88%, CO=18.52%, CO2=6.27%, CH4=16.02%, O2=1.28%.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of the conversion medium stream on the gasification process of olive pits

Król

Poskrobko

2019

EPJ Web Conf.

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“…Those systems are still considered temporary solutions, as their energy savings and decarbonation potential are largely under the objectives set by the food industry perspectives. In future polygeneration energy networks, with high-efficiency and low carbon intensity of electricity and thermal productions, only biomass cogeneration units, able to valorize on-site wastes, will remain economically and environmentally relevant [104,105].…”

Section: Combined Heat and Power (Chp) Systemsmentioning

confidence: 99%

A Review of Energy-Efficient Technologies and Decarbonating Solutions for Process Heat in the Food Industry

Faraldo,

Byrne

2024

Energies

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Heat is involved in many processes in the food industry: drying, dissolving, centrifugation, extraction, cleaning, washing, and cooling. Heat generation encompasses nearly all processes. This review first presents two representative case studies in order to identify which processes rely on the major energy consumption and greenhouse gas (GHG) emissions. Energy-saving and decarbonating potential solutions are explored through a thorough review of technologies employed in refrigeration, heat generation, waste heat recovery, and thermal energy storage. Information from industrial plants is collected to show their performance under real conditions. The replacement of high-GWP (global warming potential) refrigerants by natural fluids in the refrigeration sector acts to lower GHG emissions. Being the greatest consumers, the heat generation technologies are compared using the levelized cost of heat (LCOH). This analysis shows that absorption heat transformers and high-temperature heat pumps are the most interesting technologies from the economic and decarbonation points of view, while waste heat recovery technologies present the shortest payback periods. In all sectors, energy efficiency improvements on components, storage technologies, polygeneration systems, the concept of smart industry, and the penetration of renewable energy sources appear as valuable pathways.

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“…Another example is presented in Ref. 4, which describes the production of olive sludge by exploiting the heat of the cogeneration plant. These two examples show the feasibility of cogeneration plants in industry and the possibility to reduce energy, CO 2 emissions, and operational costs.…”

Section: Introductionmentioning

confidence: 99%

High‐Precision Modeling and Optimization of Cogeneration Plants

2016

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Cogeneration is important to help save on the use of conventional energy resources because it reduces the primary energy consumption for generating useful energy. However, cogeneration plants can be even more efficient if mathematical optimization is used, based on a very precise simulation of the behavior of the plant. We present a new method to model cogeneration plants. It is very precise, and the evaluations of the models are very fast, which enables the use of sequential quadratic programming (SQP)‐based optimization algorithms, and reduces operational costs and emission of CO2. Additionally, the method can be used on different plants and the models can be adapted to the current situation of the plant in real time. Furthermore, an input data reduction has been developed to improve the computational time even further. It also gives a quick overview of the correlations over large amounts of data, which can have 100 000×300 and more data points.

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Cogeneration plant in an olive sludge industry

Cited by 11 publications

References 9 publications

The influence of the conversion medium stream on the gasification process of olive pits

The influence of the conversion medium stream on the gasification process of olive pits

A Review of Energy-Efficient Technologies and Decarbonating Solutions for Process Heat in the Food Industry

High‐Precision Modeling and Optimization of Cogeneration Plants

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