Simulations of a plant with a fluidized bed gasifier WGS and PSA

Moneti, M.; Delfanti, Lavinia M.P.; Marucci, Alvaro; Bedini, Roberto; Gambella, Filippo; Proto, Andrea Rosario; Gallucci, Francesco

doi:10.12988/ces.2015.56191

Cited by 26 publications

(9 citation statements)

References 28 publications

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“…is often improperly burned, generating emissions. The exploitation of agricultural and forestry waste biomass can be an important step, both for the direct combustion of chips and pellets [49] or as a means of electricity production through gasification [18,19]. Improper burning of pruning residues resulted in 0.05% of greenhouse gas emissions in 2007 and contributes to the loss of soil organic matter.…”

Section: Land Analysis On the Availability Of Compostable Wastementioning

confidence: 99%

Re-use of agricultural biomass for nurseries using proximity composting

Russo¹,

Verdiani²,

Anifantis³

2016

ces

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The purpose of this study is to provide a proximity composting plant at a nursery. The disposal of pruning is an economic burden for farms. This paper shows that the reuse of pruning for composting and producing substrates for the nursery is an efficient procedure to reduce the environmental load and obtain quality ornamental plants. After a spatial analysis on the availability of pruning in a sample area, we have arranged, at a research partner's nursery, a plant for proximity composting. Using the collected data, a life cycle assessment (LCA) analysis was prepared for the compost and substrates. Agronomic tests, whose results will be published later, were conducted on four Mediterranean ornamental species. A comparison between the agronomic and environmental results shows that proximity composting is a convenient practice that significantly reduces the environmental load of substrates.

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Section: Land Analysis On the Availability Of Compostable Wastementioning

confidence: 99%

Re-use of agricultural biomass for nurseries using proximity composting

Russo¹,

Verdiani²,

Anifantis³

2016

ces

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“…One of the most popular feature tested on wooden biomasses is the heating value (Lower Heating Value, LHV), since it describes the power content of the (bio) fuel per unit of mass. But since the power content of wooden biomass is mainly dependent on the moisture content (normally very variable) and slightly dependent on the different LHV of the wood species, we focused our attention to the properties affecting the usability of the biochar (the mail by-products) [1,15,19], i.e. the metal contents.…”

Section: Biomass Characterizationmentioning

confidence: 99%

Integrated pyro-gasification process of heterogeneous mediterranean wood species

Negri¹,

Fellin²,

Care³

et al. 2016

ces

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Within the framework of the PSR 2014 Regione Calabria "Energia Slow" project the pyro-gasification process of various wood species was held in a micro-co-generation plant able to transform the chipped wood into 45 kW electric power. The whole process from timber felling and harvesting to chipping, drying, gasifying and feeding the generator engine was managed by the same agroforestry enterprise; the main steps of the process has been monitored and measured.

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“…CHEMCAD® simulator has been used in recent years to model and simulate a wide range of processes, such as: the simulation of an olive pits fed rotary kiln pyrolysis plant installed in Southern Italy (Benanti, Freda, Lorefice, Braccio, & Sharma, 2011); the conceptual design of an acetaldehyde manufacturing plant (Eliasson, 2010); the simulation of the biodiesel production process by transesterification of vegetable oils (Chilev & Simeonov, 2014), the simulation of a gasification plant equipped with a fluidized bed gasifier (Moneti, Delfanti, Marucci, & Bedini, 2015); the use of stochastic optimization algorithms for the systematic process retrofit of complex chemical processes (Otte, Lorenz, & Repke, 2016); the simulation of the formaldehyde production process via Formox technology, and comparison between the obtained and the acquired results using SuperPro Designer process simulator (Johansen, Johnsen, & Christiansen, 2013); and the conceptual design of a small-scale plant to obtain several components from turpentine oil (Sarwar, 2012).…”

Section: Introductionmentioning

confidence: 99%

Simulation of the styrene production process via catalytic dehydrogenation of ethylbenzene using CHEMCAD® process simulator

Sánchez

Sánchez²,

Silva

2017

Tecnura

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Background: Process simulation has been extensively used in recent years to design, evaluate or optimize processes, systems and specific operations of the chemical industry and its related disciplines. Currently, CHEMCAD® constitute one of the most used process simulators because of the great number of chemical and petrochemical processes that can be simulated.Method: The simulation of the production process of styrene via catalytic dehydrogenation of ethyl-benzene is carried out by using the process simulator CHEMCAD® version 5.2.0, in order to determine the composition and mass flow-rate of each process involved in the production, as well as the main operating parameters of the equipment used. Two sensitivity studies were carried out: firstly, the influence of the temperature and pressure values applied at the LLV Separator on the amounts of ethyl-benzene and styrene to be obtained by the intermediate and top currents of this equipment; secondly, the influence of the operating pressure of the Distillation Column No. 1 (benzene-toluene column) on the quantity of ethyl-benzene and styrene obtained at the bottom stream. The simulating software MATLAB® version 7.8.0 was used to process the results obtained.Results: Around 9234.436 kg/h of styrene is obtained in the last distillation column with 99.6% purity. Additionally, it was found that the water is the main impurity found on this stream, which represents 0.35% of the weight.Conclusions: The LLV Separator must operate at a low temperature (5 – 10 ºC) and at a relatively high pressure (10 bar), whereas the Distillation Column No. 1 must work at a pressure near atmospheric (1.0 bar), or preferably under vacuum conditions in order to obtain the highest yields of styrene and ethyl-benzene.

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Simulations of a plant with a fluidized bed gasifier WGS and PSA

Abstract: Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CRA) Unità di ricerca per l'ingegneria agraria, Rome, Italy

Cited by 26 publications

References 28 publications

Re-use of agricultural biomass for nurseries using proximity composting

Re-use of agricultural biomass for nurseries using proximity composting

Integrated pyro-gasification process of heterogeneous mediterranean wood species

Simulation of the styrene production process via catalytic dehydrogenation of ethylbenzene using CHEMCAD® process simulator

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