Talk:Union process

oil shale in the retort moved countercurrent from the bottom upward to the top
This is nonsense. The mistake may be with the verb, perhaps its tense. Countercurrent is also obscure, perhaps being used as an adverb, which it isn't. — Preceding unsigned comment added by 109.144.156.112 (talk) 11:23, 17 June 2012 (UTC)


 * The source says: "During operation, shale is fed through the bottom of the inverted-cone vessel. ... Hot gases enter the top of the retort and pass down through the rising bed, causing kerogen pyrolysis. Shale oil and gas flow down through the bed. The oil accumulates in a pool at the bottom. ... The [spent] shale is discharged from the top of the retort." Beagel (talk) 13:54, 17 June 2012 (UTC)