High-pressure co-gasification of coal and biomass in a fluidized bed

✍ Scribed by T.R McLendon; A.P Lui; R.L Pineault; S.K Beer; S.W Richardson

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 561 KB
• Volume: 26
• Category: Article
• ISSN: 0961-9534
• DOI: 10.1016/j.biombioe.2003.08.003

✦ Synopsis

Mixtures of coal and biomass were co-gasiÿed in a jetting, ash-agglomerating, uidized-bed, pilot scale-sized gasiÿer to provide steady-state operating data for numerical simulation veriÿcation. Biomass used was sanding waste from furniture manufacture. Powder River Basin subbituminous and Pittsburgh No. 8 bituminous coals (screened from -1:2 to +0:25 mm) were mixed with sawdust (screened to -1:2 mm) and pneumatically conveyed into the gasiÿer at an operating pressure of 3:03 MPa. Feed mixtures ranged up to 35% by weight biomass. The results of gasiÿcation tests of subbituminous coal/sawdust mixtures showed few di erences in operations compared to subbituminous coal only tests. The bituminous coal mixture had marked di erences. Transport properties of coal/biomass mixtures were greatly improved compared to coal only.