Pilot plant up-scaling of tannin foams

Tondi, Gianluca; Link, Martin; Kolbitsch, Christian; Lesacher, R.; Petutschnigg, Alexander

doi:10.1016/j.indcrop.2015.11.013

Cited by 33 publications

(30 citation statements)

References 31 publications

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“…In Figure 4, the resistance against compression of the foams is summarized. The compression strength registered in this study can be compared with the previous studies on tannin foams: lightweight formaldehyde-free tannin foams of 50 kg/m 3 showed around 0.03 MPa, while heavier ones of 180 kg/m 3 reached up to 0.45 MPa [13,22].…”

Section: Compression Strengthmentioning

confidence: 61%

“…The combined foam produced with nitric acid as a catalyst and petroleum ether as a blowing agent result in sulfur-free and small cell material with overall improved features. These foams have been produced at 30 × 30 × 3 cm 3 , with high homogeneity and, to date, they represent the most suitable formulation for industrial upscaling.Despite the upscaling projects performed [22], there are still some technological drawbacks to be considered: (i) the consistent presence of sulfur in the formulation due to a sulfur-based catalyst (traces of sulfites due to the extraction process could still be present), and (ii) the morphological inhomogeneity occurring during the upscaling process, which affects the properties of the foams. For filling the remaining gap between the material properties and the industrial requirements, in the present work we aim the overcome these drawbacks by using alternative formulations.…”

mentioning

confidence: 99%

“…Despite the upscaling projects performed [22], there are still some technological drawbacks to be considered: (i) the consistent presence of sulfur in the formulation due to a sulfur-based catalyst (traces of sulfites due to the extraction process could still be present), and (ii) the morphological inhomogeneity occurring during the upscaling process, which affects the properties of the foams. For filling the remaining gap between the material properties and the industrial requirements, in the present work we aim the overcome these drawbacks by using alternative formulations.…”

mentioning

confidence: 99%

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Synthesis and Characterization of High-Performing Sulfur-Free Tannin Foams

et al. 2020

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Tannin foams are green lightweight materials that have attracted industrial interest for the manufacturing of sandwich panels for insulation purposes. However, the dimensions of the cells and the presence of sulfur in the formulation developed until now have discouraged their upscaling. In this work, we present the synthesis and the characterization of the more promising small cell and sulfur-free materials. It was observed that, with respect to standard ones, foams catalyzed with nitric acid present similar physical properties and more phenolic character, which favors the absorption of ionic pollutants. Conversely, the foams blown with aliphatic solvents and surfactants present smaller pores, and higher mechanical and insulating properties, without affecting the chemical properties or the heating value. The combined foam produced with nitric acid as a catalyst and petroleum ether as a blowing agent result in sulfur-free and small cell material with overall improved features. These foams have been produced at 30 × 30 × 3 cm3, with high homogeneity and, to date, they represent the most suitable formulation for industrial upscaling.

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Section: Compression Strengthmentioning

confidence: 61%

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confidence: 99%

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confidence: 99%

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Synthesis and Characterization of High-Performing Sulfur-Free Tannin Foams

et al. 2020

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“…Tondi et al has demonstrated the upscaling of eco-sustainable tannin foams. These bioderived tannin systems have similar reactivity than phenol and when co-reacted with FA produces polymers suitable for a wide range of applications such as in waste water remedial [138]. Similarly, carbon foams with improved thermal conductivity and mechanical properties were prepared from tannin-based resin and exfoliated graphite used as filler.…”

Section: Foamsmentioning

confidence: 99%

Furfuryl Alcohol a Versatile, Eco-Sustainable Compound in Perspective

Iroegbu

Hlangothi

2018

Chemistry Africa

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Renewable agricultural biomass derived chemicals, their modifications and uses have seen multiplicity in numerous applications and important processes with major impacts on the pursuit for eco-sustainability. Such applications range include the energy sector, chemistry, pharmacy, the textile industry, paints and coatings, plastic industry, to name but a few. This field of lignocellulosic derived chemicals interconnects several scientific disciplines ranging from agriculture, biochemistry, engineering, environmental sciences, forestry, pharmacy, medicine, etc. hence making it difficult to have a single expert view on these complicated interactions. Therefore, the idea to create a focused review, specifically, on FA (an important furanic compound) is the main objective of this article. FA and its resultant derivatives exhibits an array of capabilities and fascinating properties in various fields of applications. As a compound or with co-reactants, it finds interesting applications as base and/or intermediate chemical compound, hypergolic rocket fuels, in flame resistant composites and coatings used in aerospace, auto, and the built environment; it also finds application as mortars, cementitious grouts, impregnating materials, and sealants due to its exceptional resistance to common corrosive chemicals such as acids, alkalis and other solvents when it is cross-linked. Coupled with its environmental and economic benefits FA has proved to be a remarkable eco-sustainable bio-derived compound.

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“…Pengembangan proses produksi menggunakan pendekatan empiris pragmatis memerlukan kajian ekonomi (Moraes et al, 2013;Mayer et al, 2016). Tondi et al (2016) menyatakan kajian skala pilot plant bertujuan untuk memperoleh hasil yang secara ekonomis menentukan mutu produk. Parameter yang digunakan biasanya konsumsi tenaga (P/V) serta kemampuan perpindahan massa dan panas (Stoica et al, 2015).…”

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Penggandaan Skala Produksi Bioetanol Dari Tongkol Jagung

Arif¹,

Diyono

Hayuningtyas

et al. 2017

Informatika Pertanian

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ABSTRAKPencarian bahan energi alternatif yang tidak berkompetisi dengan pangan dan pakan sangat perlu dan mendesak. Biomassa lignoselulosa merupakan salah satu sumber energi terbarukan yang potensial. Metode penggandaan produksi bioenergi dari skala laboratorium ke skala industri perlu dikaji untuk pengembangan. Penelitian ini bertujuan untuk mendapatkan metode penggandaan produksi bioetanol dari tongkol jagung. Percobaan produksi bioetanol dari skala laboratorium ke skala industri dilakukan dengan metode Pg/V tetap (tenaga pengadukan per volume). Perhitungan penggandaan skala berdasarkan data reologi cairan fermentasi dan spesifikasi fermentor yang digunakan. Hasil penelitian menunjukkan penggandaan skala produksi bioetanol dengan kapasitas bioreaktor 200 l, menghasilkan volume kerja 65% atau 130 liter dengan tinggi cairan fermentasi 0,840 m, diameter tangki bioreaktor 0,441 m, diameter pengaduk jenis turbin pipih 0,187 m, dan kecepatan agitasi 66,34 rpm. Berdasarkan perhitungan dasar penggandaan produksi bioetanol dengan kapasitas bioreaktor 10.000 l diperoleh volume kerja 65% atau 6.500 l dengan tinggi cairan fermentasi 2,87 m, diameter tangki bioreaktor 1,49 m, diameter pengaduk jenis turbin pipih 0,63 m, dan kecepatan agitasi 29,52 rpm.Kata kunci: jagung, tongkol, lignoselulosa, bioetanol, penggandaan produksi ABSTRACTThe effort to search for alternative energy materials that do not compete with food and feed is necessary and urgent. Lignocellulosic biomass is one potential source of renewable energy. Scalinge up methodproduction of bioenergy production from laboratory scale to industrial scale needs to be studied and developed. The aim of this study is to find get scalinge up method o0f the bioethanol production from corn cobs. An Eexperiments on scalinge up of bioethanol production from laboratory scale to industrial scale was is done by the Pg / V constant method (stirring power per volume). Scale up calculations based on data from fermented liquid rheological characteristics and specifications fermenters are used. The results showed that the calculation of basic scale up bioethanol production capacity bioreactor of 200 l, obtained working volume of 65% or 130 l, high of liquid fermentation 0.840 m, diameter tank bioreactor 0.441 m, diameter of a stirrer of turbine type of flat 0.187 m and the speed of agitation at 66.34 rpm. Based on the calculation of basic scale up bioethanol production capacity bioreactor of 10,000 l, obtained working volume of 65% amounting to 6,500 l, high of liquid fermentation 2.87 m, diameter tank bioreactor 1.49 m, diameter of a stirrer of turbine type of flat 0.63 m and the speed of agitation at 29.52 rpm.

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Pilot plant up-scaling of tannin foams

Cited by 33 publications

References 31 publications

Synthesis and Characterization of High-Performing Sulfur-Free Tannin Foams

Synthesis and Characterization of High-Performing Sulfur-Free Tannin Foams

Furfuryl Alcohol a Versatile, Eco-Sustainable Compound in Perspective

Penggandaan Skala Produksi Bioetanol Dari Tongkol Jagung

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