Towards Clean Gas

Sulfur Plants: Simplify Tail Gas Clean Up, Lower Costs

Tougher regulations for emissions reductions require refiners to achieve ever higher sulfur recovery efficiency in their Sulfur Recovery Units. A classic solution is to use an amine-based tail gas clean up unit (TGCU) behind a Claus plant. A U.S. refiner, working on a major capacity increase, evaluated and selected an alternate technology. They selected the SUPERCLAUS® Tail Gas Clean Up Process...

Clean and highly ordered graphene synthesized in the gas phase.

We report that the substrate-free gas-phase graphene synthesis method produces clean and highly ordered graphene sheets that are similar in quality to the graphene obtained through the mechanical exfoliation of highly oriented pyrolytic graphite.

Advances towards a Clean Hydrometallurgical Process for Chromite

Because of the acute toxicity of Cr(VI)-bearing substances, the pollution problem caused by chromite process residue has become a worldwide concern. In the view of relevant studies, the technologies based on the alkali treatment cannot fundamentally resolve the pollution problem, because the oxidation of Cr(III) to Cr(VI) is unavoidable during chromite decomposition. In contrast, the oxidation ...

Cleaner Power in India: Towards a Clean-Coal-Technology Roadmap

Slow Tech: towards Good, Clean and Fair Ict

Slow tech is a new way of looking at technology. It means designing and developing technologies that are ‘slow’, with the aim of being good, clean, and fair. It has, as an aspiration, the design and use of a new kind of information and communication technologies (ICT): ICT that is human-centred, and that takes into account both the limits of the planet and those of human beings. The focus of th...