Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1978-12-01
1980-11-11
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423210, 423231, 423237, 423245, 48210, B01D 5334
Patent
active
042332753
ABSTRACT:
A high temperature, high pressure raw coal gas containing hydrogen sulfide, ammonia, and tarry matter, is purified by contacting the raw coal gas with solid particles thereby cooling the raw coal gas to a temperature suitable for hydrogen sulfide removal and at the same time depositing the tarry matter onto the solid particles by condensation to recover the tarry matter from the raw coal gas, removing the hydrogen sulfide from the cooled and substantially tar-free coal gas, expanding the raw coal gas to a pressure suitable for ammonia decomposition, heating the expanded raw coal gas to a temperature suitable for ammonia decomposition by heat obtained by combusting the recovered tarry matter on the solid particles, thereby regenerating the solid particles for reuse, and then decomposing ammonia in the raw coal gas, thereby removing ammonia therefrom. A process for efficiently purifying raw coal gas by removing tarry matter, hydrogen sulfide and ammonia, including effectively utilizing the recovered tarry matter to produce heat while also effectively utilizing the energy obtained by expanding the coal gas through a pressure-reducing means such as an expansion turbine.
REFERENCES:
patent: 2837398 (1958-06-01), Grosskinsky et al.
patent: 3812236 (1974-05-01), Adams et al.
patent: 3822337 (1974-07-01), Wunderlich et al.
patent: 4089809 (1978-05-01), Farrior et al.
patent: 4155990 (1979-05-01), Kimura et al.
Murthy, "Investigations on The Removal of Hydrogen Sulfide at High Temperature From Coal Gas", Paper Presented at 170th ACS Meeting, Chicago, Ill. Aug. 24-29, 1975.
Farrior et al., "Regenerable Iron Oxide-Silica Sorbents For the Removal of H.sub.2 S From Hot Producer Gas", Presented at 4th Energy Resources Conference, Univ. of Kentucky, Lexington, Ky., Jan. 6-7, 1976.
Kimura Shoichi
Takahashi Toshihiko
Tamura Zensuke
Beall, Jr. Thomas E.
Hitachi , Ltd.
Thomas Earl C.
LandOfFree
Process and apparatus for purifying raw coal gas does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for purifying raw coal gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for purifying raw coal gas will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1690739