Title:
PREPARATION OF HIGH OXYGEN VOLUMETRIC CAPACITY CHAR, GRANULAR COCONUT SHELL CHAR AND GASIFIED COCONUT SHELL CHAR
Document Type and Number:
Japanese Patent JPH04310209
Kind Code:
A
Abstract:
PURPOSE: To increase a volumetric capacity of a starting material in pressure swing adsorption and to improve productivity and recovery of N2 from air.
CONSTITUTION: A coconut shell char having a high oxygen volumetric capacity is provided by crushing and classifying coconut shells to form granules, which are heated in flowing inert gas at a temp. ramp rate of about 2° to 12°C per minute to a peak temp. of 775° to 900°C, which is then held so that the total heating time is up to 8 hours. Thereafter, granular char is cooled in an inert gas atmosphere. The granular char thus produced has oxygen selectivity in air separation without further modification to narrow the openings of its micropores.
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Inventors:
TOOMASU SUTEFUAN FUAARISU
CHIYAARUZU GAADONAA KOO
JIYON NERUSON AAMAA
JIYOUN MARII SHIYORUKU
CHIYAARUZU GAADONAA KOO
JIYON NERUSON AAMAA
JIYOUN MARII SHIYORUKU
Application Number:
JP3001592A
Publication Date:
November 02, 1992
Filing Date:
January 21, 1992
Export Citation:
Assignee:
AIR PROD & CHEM
International Classes:
B01D53/02; B01D53/04; B01J20/20; C01B31/08; C01B37/00; (IPC1-7): B01D53/02; B01D53/04; C01B31/08
Domestic Patent References:
| JPS5964514A | 1984-04-12 | |||
| JPS62132543A | 1987-06-15 | |||
| JPS61191510A | 1986-08-26 | |||
| JPS62176908A | 1987-08-03 | |||
| JPS56130226A | 1981-10-13 | |||
| JPS60171212A | 1985-09-04 |
Attorney, Agent or Firm:
Yoshihisa Oshida