Socioecology Research Today

Microalgae have high photosynthetic efficiencies and produce many valuable compounds from carbon dioxide. The Dunaliella genus accumulates glycerol, yet no commercial process currently exists for glycerol production from this microalga. Here it was found that in addition to intracellular accumulation, Dunaliella tertiolecta also releases glycerol into the external medium continuously, forming a large and stable [...]

A variety of biofuel and biorefinery products have been produced from engineered Escherichia coli till date. Most of these products had been derived from simple sugars in its pure form, rather than deriving it from alternative, renewable and carbon neutral sources, such as marine alga biomass. Engineering E. coli to use algal hydrolysate can make [...]

In this study, the removal of IBE from aqueous solutions by gas stripping has been characterized. The effect of one or more components in the solution on the kinetics of the separation has been studied, both at 37 °C and at 70 °C. Gas stripping has been applied to batch, repeated batch and continuous cultures [...]

Alkaline oxidation pretreatment was developed for spruce, birch and sugar cane bagasse. The reaction was carried out in alkaline water solution under 10 bar oxygen pressure and at mild reaction temperature of 120 – 140 °C. Most of the lignin was solubilised by the alkaline oxidation pretreatment and an easily hydrolysable carbohydrate fraction was obtained. [...]

Biomethane is a gaseous energy vector that can be produced via thermochemical (gasification) or biological (anaerobic digestion) routes. Biomethane may be used as a renewable fuel for transport, for power generation, or for heating. In this paper, the net energy of biomethane derived from a hectare of willow using a gasification process is detailed and [...]

From the results of the attributional life cycle assessment (LCA) of the bioethanol-based polyvinyl chloride (PVC), shown in the first part of this work, changing the feedstock from fossil- to bioethanol-based ethylene appears to be a way to decrease the environmental impacts of that product on climate change and non-renewable resources. Although, other environmental concerns [...]

We studied lipids and fatty acids (FA) in bottom sediments from four Siberian water bodies, Bugach, Lesnoi and Krasnoyarsk freshwater reservoirs and brackish Shira lake, that differed in physico-chemical and biological conditions. We considered the potential of the bottom sediments as a feedstock for biodiesel production and estimated properties of the obtained biodiesel as a [...]

In Mercurius’s new process, biomass can be converted into a liquid intermediate chemical at small plants located close to sources. That liquid takes up much less volume than the original biomass, making it more economical to ship to a large centralized facility to be converted to fuel.Mercurius uses acids to break down cellulose and make [...]

Here’s the pattern: bend to public will when mandate efforts become popular, establish big projects, hire top R&D talent and bottle up IP to prevent technology spread, kill off the projects with absurd profit requirements, cite lack of feasible technology as a reason to kill or delay mandates, and then lobby like crazy to get [...]

This analysis identifies the sensitivity of the fast pyrolysis and hydroprocessing pathway to facility location. The economic feasibility of a 2000 metric ton per day fast pyrolysis and hydroprocessing biorefinery is quantified based on 30 different state-specific facility locations within the United States. We calculate the 20-year internal rate of return (IRR) and net present [...]