Comprehensive Oilgae Report

A detailed report on all aspects of the algae fuel value chain, the Comprehensive Oilgae Report will be of immense help to those who are on the threshold of investing in algae biofuels. More ››

Algae-based Wastewater Treatment

Compiled by a diverse team of experts, with experience in scientific and industrial fields, the Comprehensive Report for Wastewater Treatment Using Algae is the first report that provides in-depth analysis and insights on this important field. It uses innumerable data and information from a wide variety of expert sources and market studies, and distills these inputs and data into intelligence and a roadmap that you can use. More ››

Comprehensive Guide for Algae-based Carbon Capture

A Comprehensive Guide for Entrepreneurs and Businesses Who Wish to get a Basic Understanding of the Business Opportunities and Industry Dynamics of the Algae-based CO2. More ››


Comprehensive Report on Attractive Algae Product Opportunities

This is for entrepreneurs and businesses who wish to get a basic understanding of the algae fuel business and industrThe report provides an overview of the wide range of non-fuel applications of algae – both current and future prospects. It will provide entrepreneurs with an idea of how to derive more benefits from their algal energy ventures. The report provides detailed case studies, success stories and factoids of companies that have been involved in the algae products venture. More ››

Comprehensive Castor Oil Report

There is no other comprehensive report available for castor oil anywhere in the world. This is the first of its kind, and currently, the only one. More ››

Algae-Useful Substances

Pigments

PUFAs

Vitamins

Anti-oxidants


Algae for Pollution Control

Other Novel Applications

Methane Production from Algae

Methane is important for electrical generation by burning it as a fuel in a gas turbine or steam boiler. Compared to other hydrocarbon fuels, burning methane produces less carbon dioxide for each unit of heat released. At about 891 kJ/mol, methane's combustion heat is lower than any other hydrocarbon; but a ratio with the molecular mass (16.0 g/mol) divided by the heat of combustion (891 kJ/mol) shows that methane, being the simplest hydrocarbon, produces more heat per mass unit than other complex hydrocarbons. In many cities, methane is piped into homes for domestic heating and cooking purposes. In this context it is usually known as natural gas, and is considered to have an energy content of 39 megajoules per cubic meter, or 1,000 BTU per standard cubic foot.

Methane in the form of compressed natural gas is used as a vehicle fuel, and is claimed to be more environmentally friendly than fossil fuels such as gasoline/petrol and diesel.


Theoretically, methane can be produced from any of the three constituents of algae – carbohydrates, proteins and fats.Closed algal bioreactors offer a promising alternative route for biomass feedstock production for bio-methane. Using these systems, micro-algae can be grown in large amounts (150-300 tons per ha per year) using closed Bioreactor systems (lower yields are obtained with open pond systems). This quantity of biomass can theoretically yield 200,000-400,000 m of methane per ha per year.

Methane Production by Anaerobic Digestion

This appears to be the most straight-forward method of producing methane from algae.
A process for obtaining methane from algae, involves the following successive stages:
- Pre-treatment of the algae, capable of producting a liquid suspension of fine solid particles, said treatment being moreover capable of partially depolymerizing the solid algae matter,
- Running the suspension through a fluidized bed containing granules on which enzymes are immobilized which are capable of transforming the particles into sugar, said liquid containing acidific bacteria capable of transforming said sugars into volatile fatty acids,
- Decantation of the suspension, so as to remove any solid particles that may remain, and to extract a decanted liquid, and
- Running the decanted liquid across a fixed bed containing methanogenic bacteria set onto a support so as to cause the liquid to release a gas mixture containing mainly methane.


Methane Production by Pyrolysis / Gasification


•    One possibility for making methane from algae is the direct pyrolysis of microalgae. Wu et al. (1999) report the direct pyrolysis of marine nanoplankton as a source of methane and oils with Emiliania huxleyi, a widely distributed coccolithophorid species in world oceans with the authors suggesting this as one of the most promising candidates for the production of biofuel.
•    Methanation of syngas produced from gasification of Algal Biomass is another route to produce methane-rich syngas, sometimes also called synthetic natural gas.


Research on Methane from Algae


•    In 1960 Oswald and Golweke proposed the use of largescale ponds for cultivatin
algae on wastewater nutrients and anaerobically fermenting the biomass into methane fuel.
•    Bio-methane from Algae Efforts by Solar Biofuels Consortium  - The Solar-Biofuels consortium is co-ordinating a range of research streams to analyse and optimize the use of micro algae for bio-methane production
o    IMB Queensland (A/Prof. Hankamer): Industrial feasibility studies are being conducted to evaluate the use of micro algae produced in closed bioreactors for bio-gasification
o    University of Karlsruhe (Prof. Posten): The optimisation of bioreactor systems designed for high throughput algae production for bio-methane production.
o    Solar Biofuels Consortium web site:www.solarbiofuels.org

Notes:


To facilitate exploration of oil production from algae as well as exploration of other alternative energy avenues, Oilgae provides web links, directory, and related resources for algae-based biofuels / biodiesel along with inputs on new inventions, discoveries & breakthroughs in other alternative energy domains such as solar, wind, nuclear, hydro, geothermal, hydrogen & fuel cells, gravitational, geothemal, human-powered, ocean & wave / tidal energy. We hope Oilgae proves to be useful as a research information & inputs resources, and as a source of news & info for algae business & trade of algal oil, algal fuels & new alternative energy products - specially with regard to new feedstock / feedstocks, production
processes and uses, and market info such as price / prices, data & statistics

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