公开(公告)号：US06896858B2

公开(公告)日：2005-05-24

申请号：US09781884

申请日：2001-02-12

Applicant: Atsushi Tatani ,  Makoto Susaki ,  Kazuaki Kimura ,  Taku Shimizu ,  Toshikuni Sera ,  Kenji Inoue

Inventor： Atsushi Tatani ,  Makoto Susaki ,  Kazuaki Kimura ,  Taku Shimizu ,  Toshikuni Sera ,  Kenji Inoue

IPC: B01D53/50 ,  B01D53/52 ,  B01D53/73 ,  B01D53/96 ,  B01J8/22 ,  B01J10/00 ,  B01J19/18 ,  C01F11/46 ,  C10K1/26 ,  B01D53/34 ,  B01D53/48 ,  C01J3/00

CPC classification number: B01D53/73 ,  B01D53/501 ,  B01D53/52 ,  B01D53/96 ,  B01J8/222 ,  B01J10/002 ,  B01J19/0066 ,  B01J19/18 ,  B01J2208/00176 ,  B01J2219/00094 ,  C01F11/464 ,  C10K1/26

Abstract: A gas refining method for adsorbing a reducing gas obtained by pressure gasification of coal or oil comprises introducing a reducing gas stream into an adsorbing and removing zone where it contacts an adsorbent. Sulfur-containing compounds are adsorbed onto the adsorbent and a first oxygen-containing gas stream is introduced into the adsorbing and removing zone in order to form a regeneration gas containing sulfur dioxide. The regeneration gas is contacted with a second oxygen-containing stream and a calcium-containing liquid slurry to effect absorption of sulfur dioxide by the slurry and precipitation of a gypsum compound. The temperature of the slurry is varied to cause selective precipitation of 60 -gypsum hemihydrate or gypsum dihydrate.

Abstract translation: 用于吸附通过煤或油的压力气化获得的还原气体的气体精炼方法包括将还原性气流引入到与吸附剂接触的吸附和去除区域中。 含硫化合物被吸附到吸附剂上，并且将第一含氧气流引入吸附和去除区，以形成含二氧化硫的再生气体。 使再生气体与第二含氧流和含钙液体浆料接触，以通过浆料吸收二氧化硫并沉淀石膏化合物。 改变浆液的温度以引起60-石膏半水合物或石膏二水合物的选择性沉淀。