The materials can also be
processed at atmospheric pressure.
Not exact matches
In contrast, Coskata says its
process works
at relatively low
pressure and temperature: about twice
atmospheric pressure and 97 degrees Fahrenheit.
Their findings have been recently published in EPJ D and are particularly relevant for the development of novel applications in medicine, health care and materials
processing because they involve air
at normal
atmospheric pressure, which would make it cheaper than applications in inert gases or nitrogen.
Importantly, the white graphene is produced in a standard
atmospheric pressure chemical vapor deposition
process, which Stehle and her colleagues believe could easily be scaled up to commercial production volume levels
at a reasonable cost.
In August 2005, the scientists reported that they created this compound by compressing buckyballs — soccer ball - shaped molecules each made of 60 carbon atoms —
at 2,200 degrees C and 200 times normal
atmospheric pressure, a
process that could lend itself to mass production.
The
processes (absorption of light, collisional energy transfer and emission) can be separated because the average time that an isolated CO2 molecule takes before it emits a photon is much longer that the time for collisional de-excitation (~ tens of microseconds
at atmospheric pressure, less, higher in the atmosphere).
Atmospheric crude oil distillation: The refining
process of separating crude oil components
at atmospheric pressure by heating to temperatures of about 600 degrees to 750 degrees Fahrenheit (depending on the nature of the crude oil and desired products) and subsequent condensing of the fractions by cooling.