A process for production of biofuels from algae can include cultivating an oil-producing algae by promoting sequential photoautotrophic and heterotrophic growth. The method can further include producing oil by heterotrophic growth of algae wherein the heterotrophic algae growth is achieved by introducing a sugar feed to the oil-producing algae. An algal oil can be extracted from the oil-producing algae, and can be converted to form biodiesel.

Various embodiments may include systems, methods, and devices in which acid produced by a reactor, such as an electrochemical reactor or other type acid producing reactor, is used to produce carbon dioxide (CO.sub.2) from a carbonate and the produced CO.sub.2 is used, or made available for use, for one or more purposes. In some embodiments, the electrochemical reactor may be powered by a renewable energy source.

A system comprising a collocated thermal plant, water source, CO.sub.2 source and biomass growth module is disclosed. A method of improving the environment by utilizing the system is disclosed.

The present disclosure relates to processes for producing hydrocarbon fuels from lignocellulosic biomass. A process may include introducing biomass to a pretreatment system, and a first separation system forming a pentose-rich stream and a pentose-lean stream. The pentose-lean stream may be introduced to a hydrolysis system forming a hydrolysate and the hydrolysate introduced to a second separation system forming a hexose-rich stream and a lignin stream. Additionally, at least one of the pentose-rich stream or the hexose-rich stream may be introduced to a bioreactor containing microorganisms configured to produce hydrocarbon fuels. Additionally, the present disclosure also relates to systems for the production of hydrocarbon fuels. A system may include a pretreatment system, a first separation system, a hydrolysis system, a second separation system, and one or more bioreactors. Alternatively a system may include a pretreatment system, a hydrolysis system, a sugar separation system, and one or more bioreactors.

The present invention relates to the co-production and isolation of mycoprotein and ethanol from carbohydrate feedstock material (e.g cereals). The present invention also provides a fermentation system for the co-production of mycoprotein from a carbohydrate feedstock material.

A method for producing products, advantageously solvents, is by fermentation, advantageously multi-stage fermentation. The fermentation is complemented with pervaporation as in situ product recovery technology, combined with a multistage condensation of the permeate. The condensates are separately introduced in the downstream processing to recover the produced products, advantageously solvents. The method for producing products, advantageously solvents, by fermentation is simplified and has an overall improved energy efficiency. A related system uses method for producing products, advantageously solvents, is by fermentation.

A novel carbon formation reactor for forming carbon from a carbon-bearing fluidic stream, and method of using the same, is described. The reactor uses a catalyst bearing surface placed within a heated zone in a carbon-bearing fluidic stream to form carbon, which can then be removed from the reactor, with the process repeatable to achieve high extraction efficiencies.

Provided are a device for producing an organic substance capable of preventing foaming in a purification section to purify an organic substance and obtaining the organic substance with high yield and a gas treatment system having such a device for producing an organic substance. A device for producing an organic substance, includes: a fermenter 4 configured to generate an organic substance from gas by fermenting action of a microorganism; a separation section 5 configured to separate a discharge fluid discharged from the fermenter 4 into a first liquid containing a solid substance containing the microorganism and the organic substance and a second liquid containing the organic substance and a less content of the solid substance than that in the first liquid; an evaporation section 6 configured to evaporate a liquid component containing the organic substance from the first liquid; and a purification section 7 configured to purify the organic substance from the second liquid and the liquid component vaporized in the evaporation section 6.

A system comprising a collocated thermal plant, water source, CO.sub.2 source and biomass growth module is disclosed. A method of improving the environment by utilizing the system is disclosed.

Disclosed are a preparation method and a system of low-carbon jet biofuel based on whole life cycle. A low-carbon method and a system of using whole life cycle involving whole process from raw material acquisition, fuel preparation to fuel application are related. A prepared jet biofuel can be used in six types of aircrafts and engines thereof. Aircrafts using the jet biofuel can have a portion of greenhouse gas emission reduction of 50% to 80%.