Eni S.p.a.

Eniricerche S.p.a.

Olivetti Personal Computers S.p.a.

Eniricherche S.p.a.

Olivetti Personal Computer S.p.a.

Federico Capuano

Maria Andrei

Ezio Nicola D'Addario

Giacomo Fernando Rispoli

Massimo Soprani

Roberto Medici

Emiliano Fioravanti

Roberta Miglio

Felicia Massetti

Edoardo D'Angeli

Renzo Bignazzi

Francesca De Ferra

Sandro Mercuri

Process for the extraction of lipids and sugars from algal biomass, which comprises: &#x2014;producing an aqueous suspension of algal biomass; &#x2014;bringing the pH of said aqueous suspension of algal biomass to a value higher than or equal to 10, preferably ranging from 10.2 to 12, obtaining an aqueous suspension of algal biomass at basic pH; &#x2014;adding at least one anionic flocculant to said aqueous suspension of algal biomass at basic pH obtaining a concentrated algal biomass; &#x2014;recovering said concentrated algal biomass; &#x2014;subjecting said concentrated algal biomass to extraction of the lipids obtaining: (i) an organic phase comprising lipids; (ii) a semi-solid phase comprising a residue of said algal biomass; &#x2014;subjecting said semi-solid phase (ii) to hydrolysis obtaining sugars. The lipids thus obtained can be advantageously used in the production of biodiesel or green diesel which can be used as such, or in a mixture with other fuels for motor vehicles. The sugars thus obtained can be advantageously used as carbon sources in fermentation processes for the production of lipids and also for the production of alcohols (e.g., ethanol, butanol). Said alcohols can be advantageously used as biofuels for motor vehicles or as components that can be added to fuels for motor vehicles.

Process for the extraction of lipids and sugars from algal biomass

The invention relates to a process for the production of algal biomass with a high lipid content, comprising: (a) the production of inocula in order to effect phase (b), in photoreactors; (b) the massive cultivation of the algal biomass in open ponds, inoculated with phase (a); (c) a thickening phase of the algal biomass, effected blandly; (d) an induction phase of the lipid production, wherein modules are used consisting of photoreactors or open ponds; (e) a separation phase of the biomass with a high lipid content.

Process for the production of algal biomass with a high lipid content

Process for the extraction of fatty acids from algal biomass comprising: producing an aqueous suspension of algal biomass; subjecting the aqueous suspension of algal biomass to acid hydrolysis and extraction by the addition of at least one non-polar organic solvent and at least one inorganic acid to said aqueous suspension of algal biomass, so as to obtain the following three phases: (i) a semisolid phase comprising a slurry of the algal biomass; (ii) an aqueous phase comprising inorganic compounds and hydrophilic organic compounds; (iii) an organic phase comprising fatty acids and hydrophobic organic compounds other than said fatty acids.

Process for the extraction of fatty acids from algal biomass

Process for the cultivation of micro-algae comprising the planting of an algal strain in an aqueous environment and the growth process, under solar irradiation, by continuously feeding a gaseous stream essentially consisting of carbon dioxide and a stream of nutrients based on nitrogen, consisting of wastewater from industrial plants, coming from secondary treatment processes.

Process for the cultivation of micro-algae

Electrolytic membrane for light rechargeable batteries essentially consisting of:

Electrolytic membrane and process for its photo-crosslinking on a

Process for the preparation of a current collector in contact with the cathode material in light rechargeable solid state batteries, characterized by the fact that it includes the deposition on a nickel layer having a rugosity R.sub.a from 1 to 3 microns of a cathode paste comprising

Process for the preparation of a current collector in contact with the

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Rieti, Italy

Federico Capuano