Table 1. Properties of Potassium Hydroxide Impregnated Char Sorbents with Different K Contents.

sorbent	breakthrough time (min)	breakthrough sulfur capacity (mg S per g sorbent)	theoretical sulfur capacity (mg S per g sorbent)	conversion of sorbent (%)
Char	118	114.20
K5	104	124.22	205.10	56.18
K10	185	206.01	410.30	27.44
K12	341	342.20	492.30	69.51
K15	197	217.12	615.40	21.08
K20	85	68.83	820.50	11.90