Selection and preparation of activated carbon for fuel gas storage

Patent · Tue Oct 02 00:00:00 EDT 1990

OSTI ID:867541

Schwarz, James A ^[1]; Noh, Joong S ^[2]; Agarwal, Rajiv K ^[3]

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1. Fayetteville, NY
2. Syracuse, NY
3. Las Vegas, NV

Increasing the surface acidity of active carbons can lead to an increase in capacity for hydrogen adsorption. Increasing the surface basicity can facilitate methane adsorption. The treatment of carbons is most effective when the carbon source material is selected to have a low ash content i.e., below about 3%, and where the ash consists predominantly of alkali metals alkali earth, with only minimal amounts of transition metals and silicon. The carbon is washed in water or acid and then oxidized, e.g. in a stream of oxygen and an inert gas at an elevated temperature.

• Assignee: Syracuse University (Syracuse, NY)
• Patent Number(s): US 4960450
• Application Number: 07/409,437
• OSTI ID: 867541
• Country of Publication: United States
• Language: English

Related Subjects

selection
preparation
activated
carbon
fuel
gas
storage
increasing
surface
acidity
active
carbons
lead
increase
capacity
hydrogen
adsorption
basicity
facilitate
methane
treatment
effective
source
material
selected
ash
content
below
consists
predominantly
alkali
metals
earth
minimal
amounts
transition
silicon
washed
water
acid
oxidized
stream
oxygen
inert
elevated
temperature
alkali earth
activated carbon
transition metals
source material
fuel gas
alkali metal
elevated temperature
transition metal
inert gas
carbon source
alkali metals
gas storage
ash content
active carbon
minimal amount
consists predominantly
/62/