United States Patent
US Patent 4138221: Manufacture of pellets from coal conversion…
US 4138221 · granted 1979-02-06
Abstract
The manufacture of pellets from pumpable non-distillable coal conversion products is accomplished as follows. The non-distillable product is split into two streams. A pelletizable composition is made from a mixture of one stream with char made from the other stream. The pelletizable composition is converted to pellets in a pelletization zone supplied adiabatically with heat from the preheated char.
| Patent Number | 4138221 |
|---|---|
| Title | Manufacture of pellets from coal conversion products |
| Filed | 1977-12-15 |
| Granted | 1979-02-06 |
| Inventor(s) | Gorin; Everett |
| Assignee | Continental Oil Company |
| Number of Claims | 5 |
Abstract
The manufacture of pellets from pumpable non-distillable coal conversion products is accomplished as follows. The non-distillable product is split into two streams. A pelletizable composition is made from a mixture of one stream with char made from the other stream. The pelletizable composition is converted to pellets in a pelletization zone supplied adiabatically with heat from the preheated char.
Claim 1
The process of pelletizing a pumpable non-distillable product derived from a coal conversion process which comprises: (a) splitting said product into first and second streams; (b) subjecting said first stream to low temperature carbonization to yield particulate char and vaporous products; (c) forming a pelletizable composition out of said second stream and said particulate char; (d) pelletizing said pelletizable composition; and (e) recovering pellets from step (d).
Claims
5 totalThe process of pelletizing a pumpable non-distillable product derived from a coal conversion process which comprises: (a) splitting said product into first and second streams; (b) subjecting said first stream to low temperature carbonization to yield particulate char and vaporous products; (c) forming a pelletizable composition out of said second stream and said particulate char; (d) pelletizing said pelletizable composition; and (e) recovering pellets from step (d).