• No results found

Biofuel from microalgae: the third generation of renewable fuel

N/A
N/A
Protected

Academic year: 2021

Share "Biofuel from microalgae: the third generation of renewable fuel"

Copied!
1
0
0

Loading.... (view fulltext now)

Full text

(1)

Linnaeus ECO-TECH 2018 Kalmar, Sweden, November 19-21, 2018

81

BIOFUEL FROM MICROALGAE: THE THIRD

GENERATION OF RENEWABLE FUEL

Ghasem Najafpour Darzi

Biotechnology Research Laboratory, Faculty of Chemical Engineering,

Babol Noshirvani University of Technology, Iran

Abstract

Biofuel research and development has been progressed in last decade as an emerging technology for the renewable energy sources. Microalgae is one of the most promising feedstock to obtain biodiesel. Microalgae are the most suitable source for biofuel production due to their high lipid content, green-house gas fixation, rapid growth rate and ease of cultivation. The main advantage of biofuel production from microalgae is that can produce 15 upto 300 times more energy than traditional diesel production methods. The oil content of microalgae has reached up to 80% of their dry body weight; moreover, some microalgae can duplicate their biomasses within 24 hours which turn microalgae as an excellent renewable source for energy and biofuel production. Researches indicate that municipal, industrial and animal wastewaters are great potential sources for biofuel production by the aid of microalgae. Somehow, there are many drawbacks and challenges of algal cultivation including: composition variation, weather condition, pre-treatment methods, unsuitable nutrient ratio (C/N, P/N), high turbidity, suspended solid particles and existence of other toxic and inhibiting compounds. These challenges would be resolve by designing a suitable and desired technological production processes. There are many alternatives to produce biofuel from microalgae feedstock such as: biochemical conversion, chemical reaction, direct combust, and thermochemically convert raw wastes to useful products. Microalgae generally produce carbon neutral biofuel; by burning this kind of biofuel, CO2 is produced

which is then consumed by microalgae biomass. Though, the process is considered as carbon-neutral and would be a viable alternative to fossil fuels. Recent researched on biofuel production from microalgae is turning towards the most promising species that can produce more biomass. Two common biomass production, photobioreactor systems and open air (pond) systems are used. There are several algae harvesting process such as biological, electrical, chemical flocculation and centrifugation methods which are needs further development for producing commercially viable biofuel. In addition to biofuel production, many other valuable compounds such as vitamins and food additives were produced with valuable food and pharmaceutical applications.

Keywords: Biodiesel, Biofuel, CO2 biofixation, Microalgae, Photobioreactor, Vitamin B12

References

Related documents

Det är viktigt att komma ihåg att datamaterialet till modellen är hämtat från en rad olika undersökningar (uppdrag) med varierande syfte och Önskemål varför antalet

I. Co-digestion of cultivated microalgae and sewage sludge from municipal wastewater treatment. Co- digestion of sewage sludge and microalgae – Biogas production

ter Lennart Bodström sagt att Sverige i förekommande fall bör reagera till värn för individernas fri- och rättigheter och staternas nationella oberoende men inte

Nu ifrågasätter ingen politiker- nas och andra beslutsfattares, likaväl som en bred allmänhets, rätt till insyn i hur de stora resurser samhället ställer till

Purpose The aim of the present study was to contribute to the inconsistent literature on the comorbid relationship of alcohol problems and depressive symptoms from late adolescent

The emittance of the low emissivity interior paint and its main components were determined from optical measurements of reflectance in the infrared wavelength range. The

catastrophizing might be framed within a problem solving perspective is relevant for our theoretical understanding, but also to provide help for pain patients who are

To examine if and how the different developmental paths of social skills in early childhood were associated with school performance in primary school, and also