公开(公告)号：US3928001A

公开(公告)日：1975-12-23

申请号：US42947173

申请日：1973-12-28

Applicant: TEXACO INC

Inventor： CHILD EDWARD T ,  ROBIN ALLEN M ,  SLATER WILLIAM L ,  RICHTER GEORGE N

IPC: C07B61/00 ,  B01J21/00 ,  B01J23/00 ,  C01B3/22 ,  C01B3/36 ,  C07C1/00 ,  C07C1/04 ,  C07C4/04 ,  C07C9/04 ,  C07C67/00 ,  C10G9/38 ,  C10J3/46 ,  C10J3/06

CPC classification number: C01B3/36 ,  C01B3/22 ,  C07C1/0485 ,  C07C2521/04 ,  C07C2523/882 ,  C10G9/00 ,  C10G9/38 ,  C07C9/04

Abstract: Improved process for the production of substantially pure methane or clean synthetic natural gas (SNG) including the steps of partial oxidation of a hydrocarbonaceous fuel feed with substantially pure oxygen to produce a process gas stream comprising principally H2, and CO and having a critical mole ratio H2/CO in the range of 1.0 to below 1.5 and preferably 1.0 to 1.3; cooling the process gas stream and separating H2O, CO2 particulate carbon and gaseous impurities therefrom, reacting together the H2 and CO in said process gas stream in a catalytic methanation zone to produce a methane-rich gas stream containing gaseous impurities selected from the group consisting primarily of H2O, and CO2, along with minor amounts of H2, CO, N2, and Ar and mixtures thereof; and removing said H2O and CO2 to produce a product gas stream comprising substantially pure methane i.e. 95 mole % or higher (dry basis). The product gas may be used as a clean substitute natural gas having a gross heating value of about 980 BTU/SCF or higher.

Abstract translation: 用于生产基本上纯的甲烷或清洁合成天然气（SNG）的改进方法，包括以基本上纯的氧气部分氧化烃类燃料进料以产生主要包含H 2和CO并且具有临界摩尔比的工艺气流 在1.0至1.5以下，优选1.0至1.3的范围内的H 2 / CO; 冷却工艺气流并从其中分离H 2 O，CO 2颗粒碳和气态杂质，使催化甲烷化区中所述工艺气流中的H 2和CO一起反应，以产生富含甲烷的气流，其中气态杂质选自主要 的H 2 O和CO 2，以及少量的H 2，CO，N 2和Ar及其混合物; 并除去所述H 2 O和CO 2以产生包含基本上纯的甲烷，即95摩尔％或更高（干基）的产物气流。 产品气体可以用作总热值约980BTU / SCF或更高的洁净的替代天然气。

公开(公告)号：US3927998A

公开(公告)日：1975-12-23

申请号：US42946873

申请日：1973-12-28

Applicant: TEXACO INC

Inventor： CHILD EDWARD T ,  ROBIN ALLEN M ,  SLATER WILLIAM L ,  RICHTER GEORGE N

IPC: C07B61/00 ,  B01J21/00 ,  B01J23/00 ,  C01B3/22 ,  C01B3/36 ,  C07C1/00 ,  C07C1/02 ,  C07C1/04 ,  C07C9/04 ,  C07C67/00 ,  C10G9/38 ,  C10J3/46 ,  C10J3/06

CPC classification number: C01B3/36 ,  C01B3/22 ,  C07C1/0485 ,  C07C2521/04 ,  C07C2523/882 ,  C10G9/00 ,  C10G9/38 ,  C07C9/04

Abstract: Improved process for the production of a methane-rich product gas stream comprising the following steps: partial oxidation of a hydrocarbonaceous fuel feed employing a H2O/fuel weight ratio of 2.2 to 2.9 and an atomic ratio of oxygen in the substantially pure oxygen to carbon in the fuel of 0.80 to 0.84 to produce a process gas stream comprising principally H2, CO and CH4 in which the mole ratio H2/CO is 1 to 2.5, the mole % CH4 is 15 or more, and the particulate carbon is 13 weight % (basis carbon in the fuel) or less; cooling the process gas stream and separating H2O, CO2, carbon, and gaseous impurities; reacting together the H2 and CO in said process gas stream in a catalytic methanation zone to produce a methane-rich gas stream principally comprising CH4 and containing gaseous members selected from the group consisting of H2, CO, H2O, CO2, and mixtures thereof; and removing said H2O and CO2 to produce a methane-rich product gas stream comprising about 93 mole percent of CH4. By means of the subject invention there is produced a high heating value clean fuel gas or a substitute natural gas of about 960 BTU per SCF or more.

Abstract translation: 用于生产富含甲烷的产物气流的改进方法包括以下步骤：使用H 2 O /燃料重量比为2.2至2.9的烃类燃料进料的部分氧化和基本上纯的氧中的氧的原子比与碳的原子比 燃料为0.80至0.84，以产生主要为H 2，CO和CH 4的工艺气流，其中摩尔比H 2 / CO为1至2.5，摩尔％CH 4为15或更大，并且颗粒碳为13重量％ 燃料中的基础碳）或更少; 冷却工艺气流并分离H 2 O，CO 2，碳和气态杂质; 在催化甲烷化区中使所述工艺气流中的H 2和CO一起反应，以产生主要包含CH 4并含有选自H 2，CO，H 2 O，CO 2及其混合物的气态成员的富甲烷气流; 并且除去所述H 2 O和CO 2以产生包含约93％（摩尔）CH 4的富甲烷产物气流。通过本发明，产生高热值清洁燃料气体或约960BTU的替代天然气 SCF或更多。

公开(公告)号：US3928000A

公开(公告)日：1975-12-23

申请号：US42947073

申请日：1973-12-28

Applicant: TEXACO INC

Inventor： CHILD EDWARD T ,  ROBIN ALLEN M ,  SLATER WILLIAM L ,  RICHTER GEORGE N

IPC: C10G9/38 ,  B01J21/00 ,  B01J23/00 ,  B01J29/00 ,  C01B3/22 ,  C01B3/36 ,  C07B61/00 ,  C07C1/00 ,  C07C1/02 ,  C07C1/04 ,  C07C9/04 ,  C07C67/00 ,  C10J3/46 ,  C10J3/06

CPC classification number: C07C1/0435 ,  C01B3/22 ,  C01B3/36 ,  C07C1/0485 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2521/16 ,  C07C2523/26 ,  C07C2523/28 ,  C07C2523/30 ,  C07C2523/75 ,  C07C2523/755 ,  C07C2523/882 ,  C07C2529/04 ,  C10J3/466 ,  C10J2300/1662 ,  C10K1/10 ,  C10K3/04 ,  C10L3/08 ,  Y02A50/2327 ,  Y02P20/52 ,  C07C9/04

Abstract: This is an improved process for converting low-cost high-sulfur containing hydrocarbonaceous materials into a clean methane-rich gas stream which may be burned as a fuel without contaminating the atmosphere. A high-sulfur hydrocarbonaceous fuel is gasified by partial oxidation to produce a process gas stream which is cooled, cleaned and subjected to catalytic methanation over a sulfur-resistant catalyst comprising 0.8 to 10 atoms of an element selected from the group comprising Co, Cr, W or mixtures thereof per atom of an element selected from the group Mo, Ni, or mixtures thereof. The catalyst may be supported on a structure formed from Group III and IV elements e.g. alumina, silica stabilized alumina, zeolite. A distinct advantage of the subject process, is that the sulfur in the process gas stream is not removed prior to the methanation step. Rather, the sulfur is permitted to remain in the process gas stream in order to moderate the highly exothermic methanation reaction. After cooling and purification by removing one or more members of the group H2, CO, H2O, CO2, COS, H2S, Ar, and N2, the resulting methane-rich gas stream comprises about 10 to 95 mole % CH4. Optionally, the CH4 content of said methane-rich gas stream may be increased to about 98 mole % or more by the additional steps of water-gas shift conversion, catalytic methanation, cooling, drying and CO2 removal. The product gas would then have a gross heating value of about 1000 BTU/SCF.

Abstract translation: 这是一种将低成本含高含硫烃类材料转化为清洁的富甲烷气流的改进方法，可将其作为燃料燃烧而不污染大气。 高硫含烃燃料通过部分氧化气化，产生一种工艺气体流，其被冷却，清洗并经过包含0.8-10个元素的选自Co，Cr， W或其混合物，每一元素选自Mo，Ni或其混合物。 催化剂可以负载在由III族和IV族元素形成的结构上。 氧化铝，二氧化硅稳定的氧化铝，沸石。 本发明方法的显着优点是，在甲烷化步骤之前，工艺气流中的硫不被除去。 相反，允许硫保留在工艺气流中，以缓和高度放热的甲烷化反应。 在通过除去H 2，CO，H 2 O，CO 2，COS，H 2 S，Ar和N 2组中的一种或多种成分冷却和纯化后，所得富甲烷气流包含约10至95摩尔％的CH 4。 通过水煤气变换转化，催化甲烷化，冷却，干燥和二氧化碳除去的附加步骤，所述富甲烷气流的CH 4含量可增加至约98％（摩尔）或更多。 然后产品气体的总热值为约1000BTU / SCF。

公开(公告)号：US3917569A

公开(公告)日：1975-11-04

申请号：US48400674

申请日：1974-06-28

Applicant: TEXACO INC

Inventor： RICHTER GEORGE N ,  SLATER WILLIAM L ,  CHILD EDWARD T ,  AHLBORN JOHN C

IPC: B01D12/00 ,  C01B3/36 ,  C01B3/50 ,  C02F1/26 ,  C02F1/66 ,  B01D43/00

CPC classification number: C02F1/66 ,  B01D12/00 ,  C01B3/36 ,  C01B3/50 ,  C01B2203/049 ,  C02F1/26

Abstract: Carbon is recovered from synthesis gas by scrubbing with water and using a two-stage hydrocarbon addition technique to separate the carbon from the water-carbon slurry.

Abstract translation: 通过用水洗涤并使用两阶段加氢技术将碳从水 - 碳浆料中分离出来，从合成气中回收碳。