公开(公告)号：US3850841A

公开(公告)日：1974-11-26

申请号：US22563372

申请日：1972-02-11

Applicant: EXXON RESEARCH ENGINEERING CO

Inventor： ALDRIDGE C ,  KALINA T

IPC: B01J23/84 ,  C01B3/16 ,  C10K3/04 ,  C01B1/03 ,  C01B2/06

CPC classification number: B01J23/8872 ,  B01J21/04 ,  B01J23/84 ,  C01B3/16 ,  C10K3/04 ,  Y02P20/52

Abstract: CONSISTING OF (A) A METAL COMPOSITION COMPRISING VANADIUM, MOLYBDENUM, TUNGSTEN, COBALT, TANTALUM OR NIOBIUM MATERIALS OR MIXTURES THEREOF OR (B) MIXTURES OF MATERIALS COMPRISING CANADIUM, MOLYDBENUM, TUNGSTEN, COBALT, TANTALUM OR NIOBIUM MATERIALS OR MIXTURES THEREOF WITH A NICKEL, IRON OR CHROMIUM MATERIAL OR MIXTURES THEREOF, THE WEIGHT RATIO OF SAID HYDROGENATION-DEHYDROGENATION COMPONENT TO SAID ALKALI METAL COMPOUND, EACH CALCULATED ON THE BASIS OF THE OXIDES THEREOF, BEING LESS THAN 5:1.

1. A PROCESS FOR THE PREPARATION OF HYDROGEN AND CARBON DIOXIDE WHICH COMPRISES INTRODUCING A GAS MIXTURE CONTAINING MONOXIDE AND STREAM AT A TEMPERATURE VARYING FROM ABOUT 300* TO 700* F. INTO A FIRST SHIFT-REACTION STAGE AND CONTACTING SAID GAS MIXTURE THEREIN WITH A CATALYST TO FROM A REACTION MIXTURE, COOLING AT LEAST A PORTION OF SAID REACTION MIXTURE FROM SAID FIRST STAGE TO A TEMPERATURE OF ABOUT 300* TO ABOUT 700*F. AND INTRODUCING AT LEAST A PORTION OF SAID COOLED REACTION MIXTURE TO AT LEAST ONE ADDITIONAL SHIFT REACTION STAGE CONTACTING THE SAME THEREIN WITH A CATALYST, THE TEMPERATURE WITHIN EACH SAID REACTION STAGE BEING MAINTAINED ABOVE THE DEW POINT TEMPERATURE OF THE REACTION MIXTURE AND THE PRESSURE WITHIN EACH SAID REACTION STAGE BEING MAINTEINED BELOW THE DEW POINT PRESSURE OF SAID REACTION MIXTURE AND RANGING FROM ABOUT ATMOSPHERIC TO ABOUT 3,000 P.S.I.G., THE CATALYST IN EACH REACTION STAGE COMPRISING (I) AN ALKALI METAL COMPOUND DERIVED FROM AN ACID HAVING AN IONIZATION CONSTANT OF LESS THAN ABOUT 1X10-3 AND (II) A HYDROGENATION-DEHYDROGENATION COMPONENT SELECTED FROM THE GROUP

公开(公告)号：US3847567A

公开(公告)日：1974-11-12

申请号：US39108273

申请日：1973-08-27

Applicant: EXXON RESEARCH ENGINEERING CO

Inventor： KALINA T ,  MOORE R

IPC: C07C1/00 ,  C10J3/54 ,  C10J3/06

CPC classification number: C10J3/54 ,  C07C1/00 ,  C07C2527/232 ,  C10J2300/093 ,  C10J2300/0959 ,  C10J2300/0966 ,  C10J2300/0973 ,  C10J2300/0986 ,  C10J2300/1662 ,  C10J2300/1807 ,  C10J2300/1823 ,  C10J2300/1853 ,  C10J2300/1884 ,  C10J2300/1892 ,  C10K1/004 ,  C10K1/005 ,  C10L3/08 ,  C10L3/102 ,  C10L3/106 ,  Y10S585/943 ,  C07C9/04

Abstract: Methane is produced by the thermoneutral reaction of steam with coal or other carbonaceous material in a hydrogasification zone containing an alkali metal catalyst and sufficient hydrogen to suppress competing endothermic reactions. The gas taken overhead from the gasifier is subjected to steam reforming and then processed for the removal of acid constituents, hydrogen which is recycled to the hydrogasification zone, and carbon monoxide which is used as fuel for the steam reformer.

Abstract translation: 在包含碱金属催化剂和足够的氢气的加氢气化区中，通过蒸汽与煤或其它碳质材料的热中和反应生成甲烷，以抑制相互竞争的吸热反应。 对来自气化器的塔顶气体进行蒸汽重整，然后处理以去除酸组分，再循环到加氢气化区的氢气和用作蒸汽重整器的燃料的一氧化碳。