Not exact matches
VHTR plants could even produce hydrogen for fuel
using high - temperature steam
electrolysis, which breaks apart the bonds
of water molecules; this process is 50 percent more energy - efficient than existing hydrogen production methods.
Using excess energy from renewable energy resources such as solar and wind to split
water into oxygen and hydrogen — a process called
electrolysis — could be the best solution for creating large supplies
of sustainable hydrogen fuel.
Therefore, it must be first generated (e.g., by
electrolysis of water), then stored, to be finally
used — ideally in fuel cells transforming chemical energy directly into electrical one.
When ammonia plants first came online in the 1940s, most
used water as their source
of hydrogen; energy - intensive
electrolysis decoupled the hydrogen and oxygen.
An M.I.T. researcher thinks he's found a way to efficiently
use solar power to drive the
electrolysis of water, which would isolate hydrogen for fuel cells.
MOXIE will attempt to produce about 20 grams
of oxygen per hour for around 50 hours, probably
using the reverse
water - gas shift reaction (CO2 + H2 - > CO + H20) and then
electrolysis of the resulting
water to produce oxygen.
Hydrogen can be made in 2 ways that I know
of — from hydrocarbon fuels, and
using electricity to perform the
electrolysis of water.
In 2006, a study for the IEEE showed that for hydrogen produced via
electrolysis of water: «Only about 25 %
of the power generated from wind,
water, or sun is converted to practical
use.»
Producing hydrogen and oxygen by the
electrolysis of water (the hydrogen could later be
used to power clean fuel - cell vehicles, oxygen has many
uses);
The $ 3 to $ 6 / gal is at sea not on land, and is
using electricity to firstly separate fresh
water out
of sea
water and then produce hydrogen
using electrolysis.
Hydrogen can also be generated by
electrolysis of water by
using extra electricity generated by wind and / or solar collection to be stored for burning in power plants when those collection systems have lulls especially for solar at night,
of course.
[7] Oxygen is produced industrially by fractional distillation
of liquefied air,
use of zeolites with pressure - cycling to concentrate oxygen from air,
electrolysis of water and other means.
Instead
of an erosion system, a built - in generator
uses a form
of electrolysis to separate
water molecules into hydrogen and oxygen, and then combine them with salt (sodium chloride) to form sodium hypochlorite (chlorine), which sterilizes the
water.