Gas: heating and illuminating – Processes – Fuel mixtures
Patent
1979-07-27
1981-03-10
Thomas, Earl C.
Gas: heating and illuminating
Processes
Fuel mixtures
48212, 208226, 208250, 423244, 423561R, 423563, 423638, 423539, C10K 354
Patent
active
042551625
ABSTRACT:
Sulfur-containing fuels are converted to substantially sulfur-free combustible gas in an integrated process involving part combustion in a dense phase fluidized conversion bed of particles comprising alkaline earth metal oxides. An oxygen-containing gas is passed into the base of the bed to maintain a relatively high fuel/air ratio. Sulfur is chemically fixed in the particles by reaction to form alkaline earth metal sulfide. Particles containing alkaline earth metal sulfide are circulated from one region of the conversion bed to one region of a dense phase fluidized regeneration bed operated at a higher temperature and fluidized by passing into the base thereof an oxygen-containing gas which exothermically regenerates chemically active alkaline earth metal oxide from the sulfide liberating gases which have a low oxygen content and a relatively high content of sulfur moieties (e.g. SO.sub.2). Hot particles are circulated from a second region of the regeneration bed to a second region of the conversion bed for use in fixing further quantities of sulfur from sulfur-containing fuel. Both beds contain a high molar proportion of unreacted alkaline earth metal oxide thereby imparting high sulfur-retaining capability to the conversion bed, and the beds interact cooperatively with each other at least in that particles entering the regeneration bed moderate temperatures therein and particles entering the conversion bed add heat thereto thereby reducing the fuel requirement for maintaining the conversion bed temperature.
REFERENCES:
patent: 1244280 (1917-10-01), Bassett
patent: 3402998 (1968-09-01), Squires
patent: 3807090 (1974-04-01), Moss
Exxon Research and Engineering Co.
Gibbons Marthe L.
Thomas Earl C.
LandOfFree
Integrated process for converting sulfur-containing fuels to low does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated process for converting sulfur-containing fuels to low, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated process for converting sulfur-containing fuels to low will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1292371