A continuous-flow biodiesel production process using a rotating packed bed

Chen, Yi‐Hung; Huang, Yu-Hang; Lin, Rong-Ho; Shang, Neng‐Chou

doi:10.1016/j.biortech.2009.08.081

Cited by 93 publications

(51 citation statements)

References 37 publications

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“…Presently, there is a tremendous interest in using solid (heterogeneous) catalysts instead of the conventional homogeneous ones for biodiesel production. A solid catalyst can be used in a (rotating) packed bed continuous reactors having better performance as compared to CSTRs (Chen et al 2010). Moreover, the costly catalyst separation operations can be greatly reduced.…”

Section: Catalysts For Fatty Esters Synthesismentioning

confidence: 99%

Biodiesel and Fatty Esters

Kiss¹

2014

Process Intensification Technologies for Biodiesel Production

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This chapter provides an overview of biodiesel (basically a mixture of fatty esters) as renewable fuel, covering the market developments and trends, chemical composition and characteristics, properties and performance, complementary use as diesel fuel, main synthesis routes (e.g. esterification or transesterification), various catalysts used for manufacturing (e.g. homogeneous, solid acids and solid base catalysts) and industrial production processes (e.g. batch, continuous, supercritical, enzymatic, multi-step, reactive separations).Fatty esters are key products of the chemical process industry, involved in various specialty chemicals with applications in the food industry, cosmetics, pharmaceuticals, plasticizers, bio-detergents and biodiesel. However, the main interest has shifted nowadays to the larger scale production of biodiesel-a mixture of fatty acid alkyl esters-hence the current strong market drive for more innovative and efficient processes (Kralova and Sjoblom 2010).The increasing worldwide interest in biodiesel is illustrated by the tremendous increase of the production, mostly in Western Europe, North America and Asiaas shown in Fig. 2.1 (Blagoev et al. 2008;Kiss 2009). The market potential for biodiesel is actually defined and limited by the market size of the petroleum diesel. Remarkable, there is no major technical limitation on replacing fossil diesel with biodiesel, although a limitation on the feedstock-and the required arable farmland-availability does exist in practice.The biodiesel market share suffered some changes during the recent decade, being now rather stabilized-as shown in Fig. 2.1 (bottom). An interesting development over the past years is the shift in global biodiesel market share. Europe had over 80 % capacity in 2000, but it is no longer the dominant player of the biodiesel industry, its global share accounting presently about 40 % of global capacity. Other key players emerged-such as Asia, North America, Central and South America-and they have leveled out the global biodiesel market shares. For a complete picture of the current status, Fig. 2.2 shows the biodiesel consumption worldwide and in EU (Kiss 2009). The biodiesel consumption worldwide is actually expected to grow at an average annual rate of over 5 % during 2011 -2016(Blagoev et al. 2008. Biodiesel is an alternative renewable and biodegradable fuel with properties similar to petroleum diesel (Bowman et al. 2006;Balat et al. 2008; Knothe 2010). Actually it has several advantages over petroleum diesel: it is safe, renewable, non-toxic and biodegradable; it contains no sulfur and is a better lubricant. Despite the chemical differences these two fuels have similar properties and performance An important characteristic of diesel fuels is the ability to auto-ignite, quantified by the cetane number (cetane index). Biodiesel not only has a higher cetane number than petroleum diesel, but also a higher flash point meaning better and safer performance. Blends of biodiesel and petroleum diesel are designated by a 'B' fo...

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Section: Catalysts For Fatty Esters Synthesismentioning

confidence: 99%

Biodiesel and Fatty Esters

Kiss¹

2014

Process Intensification Technologies for Biodiesel Production

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“…RPB can provide a mean acceleration of up to 1,000 times greater than the force of gravity, thereby leading to the formation of thin liquid films and micro-or nano-droplets. (Chen et al, 2004, Chen et al, 2010, Cheng and Tan, 2011, Kelleher and Fair, 1996, Lin and Chen, 2008, Yu et al, 2012. Both the CO 2 removal efficiency and carbonation conversion of steelmaking slag in an RPB were observed to be greater than those in an autoclave or a slurry reactor (Chang et al, 2012b;Pan et al, 2013a, b).…”

Section: Combination With Novel Processesmentioning

confidence: 99%

An Innovative Approach to Integrated Carbon Mineralization and Waste Utilization: A Review

Pan

Chiang

Chang

et al. 2015

Aerosol Air Qual. Res.

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Carbon dioxide (CO 2 ) emission reduction in industry should be a portfolio option; for example, the carbon capture and utilization by mineralization (CCUM) process is a feasible and proven technology where both CO 2 capture and alkaline waste treatment occur simultaneously through an integrated approach. In this study, the challengeable barriers and significant breakthroughs of CCUM via ex-situ carbonation were reviewed from both theoretical and practical perspectives. Recent progress on the performance of various carbonation processes for different types of alkaline solid wastes was also evaluated based on CO 2 capture capacity and carbonation efficiency. Moreover, several process intensification concepts such as reactor integration and co-utilization with wastewater or brine solution were reviewed and summarized. In addition, the utilization of carbonated products from CCUM as green materials including cement, aggregate and precipitate calcium carbonate were investigated. Furthermore, the current status of worldwide CCUM demonstration projects within the ironand steelmaking industries was illustrated. The energy consumption and cost analyses of CCUM were also evaluated.

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“…This is due to the fact that both lower agitation and power transmission from microwave to mixture decrease the conversion. The yield value clearly increased when the speed was increased, because of the increase in the micro-mixing intensity between the oil and methanol phases (Chen et al, 2010). …”

Section: Interactive Effects Of the Variables On Wcome Conversionmentioning

confidence: 99%

“…Besides that, it has a low cost of production, the ability to only produce very small quantities of biodiesel, the capacity to make improvements to the design of equipment for the optimization of the quality of biodiesel, and the ability to produce greater quantities of biodiesel per unit of labour are some of the advantages of the continuous flow transesterification (Chen et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Biodiesel Production using a Stirred Packed-bed Reactor

Ani¹,

Said²,

Said³

2018

IJTech

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The use of waste cooking oil (WCO) as feedstock and in microwave heating technology helps to reduce the cost of biodiesel. In this study, a continuous flow transesterification of waste cooking oil (WCO) by microwave irradiation for biodiesel production using calcium oxide (CaO) as aheterogeneous catalyst, calcined from cockle shells, is used. The catalyst was packed inside a plastic perforated container mounted on a stirrer shaft and inserted inside the reactor. The thermocouple inside the reactor was connected to a temperature controller and microwave power input to maintain the temperature. Response surface methodology (RSM) was employed to study the relationships between power input, stirrer speed and liquid hourly space velocity (LHSV) on the WCO methyl ester (WCOME) conversion at a fixed molar ratio of methanol to oil of 9 and a reaction temperature set at 65 o C. The experiments were developed using the Box-Behnken design (BBD) for optimum conditions. The transesterification of the WCO was produced at 72.5% maximum WCOME conversion at an optimum power input of 445 W, stirrer speed of 380 rpm and LHSV of 71.5 h -1 . The energy consumption in a steady state condition was 0.594 kWh for the production of 1 litre WCOME, for this heterogeneous catalyst is much faster than conventional heating.

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A continuous-flow biodiesel production process using a rotating packed bed

Cited by 93 publications

References 37 publications

Biodiesel and Fatty Esters

Biodiesel and Fatty Esters

An Innovative Approach to Integrated Carbon Mineralization and Waste Utilization: A Review

Optimization of Biodiesel Production using a Stirred Packed-bed Reactor

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