EP0376419A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Hydrogen production from hydrocarbon
Assignee: Japan Petroleum Energy Center
•
Filing: 1989-12-20
•
Granted: —
•
Expires: 2009-12-20
Abstract
Abstract A process is disclosed for producing hydrogen of high purity from hydrocarbons. A selected hydrocarbon feed is contacted with a nickel-containing sorbent of a specified composition at below 50 kg/cm²G and at from 150 to 500°C. The hydrocarbon feed thus treated is further reformed with a catalyst of a specified composition.
Inventors
- 👤 Tomonori Shioiri
- 👤 Shinichi Satake
- 👤 Yasuo Sekido
- 👤 Tokuo Fujisou
- 👤 Akira Obuchi
- 👤 Hideharu Kato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 03:58
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B2203/00; C01B2203/02; C01B2203/0205; C01B2203/0227; C01B2203/0233; C01B2203/0283; C01B2203/08; C01B2203/0872; C01B2203/0883; C01B2203/10; C01B2203/1005; C01B2203/1011; C01B2203/1041; C01B2203/1047; C01B2203/1052; C01B2203/1058; C01B2203/1076; C01B2203/1082; C01B2203/1094; C01B2203/12; C01B2203/1205; C01B2203/1211; C01B2203/1235; C01B2203/1241; C01B2203/1247; C01B2203/1258; C01B2203/1264; C01B2203/127
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
70 words
A process for producing hydrogen from hydrocarbons, which comprises contacting a hydrocarbon feed with a nickel-containing sorbent in the presence of steam and hydrogen-containing gas at a pressure of lower than 50 kg/cm²G, at a temperature of 150 to 500°C and at a GHSV of 100 to 5,000 hr⁻¹ or at an LHSV of 0.1 to 10 hr⁻¹ and subsequently treating the resulting reaction mixture with a steam reforming catalyst.
Claim 2
Dependent Claim
70 words
A process for producing hydrogen from hydrocarbons, which comprises contacting a hydrocarbon feed with a nickel-containing sorbent in the presence of steam and hydrogen-containing gas at a pressure of lower than 50 kg/cm²G, at a temperature of 150 to 500°C and at a GHSV of 100 to 5,000 hr⁻¹ or at an LHSV of 0.1 to 10 hr⁻¹ and subsequently treating the resulting reaction mixture with a steam reforming catalyst.
Claim 3
Dependent Claim
23 words
The process according to claim 1 wherein the steam is added in a ratio of steam to carbon of 0.1 to 7.0 mol/atom.
Claim 4
Dependent Claim
21 words
The process according to claim 1 wherein the hydrocarbon feed has a sulfur content of smaller than 150 ppm by weight.
Claim 5
Dependent Claim
32 words
The process according to claim 1 wherein the hydrocarbon feed is one gaseous member selected from the group consisting of methane, ethane, propane and butane alone or in combination and natural gas.
Claim 6
Dependent Claim
30 words
The process according to claim 1 wherein the hydrocarbon feed is one liquid member selected from the group consisting of light naphtha, heavy naphtha and kerosine alone or in combination.
Claim 7
Dependent Claim
19 words
The process according to claim 1 wherein the sorbent has a nickel conent of 30 to 70% by weight.
Claim 8
Dependent Claim
23 words
The process according to claim 1 wherein the catalyst contains nickel as an oxide in an amount of 5 to 50% by weight.
Claim 9
Dependent Claim
24 words
The process according to claim 1 further including hydrogenative desulfurization and hydrogen sulfide adsorption prior to contact of the hydrocarbon feed with the sorbent.
Claim 10
Dependent Claim
19 words
The process according to claim 8 wherein the hydrogenative desulfurization is accomplished by the use of a desulfurization catalyst.
Claim 11
Dependent Claim
19 words
The process according to claim 8 wherein the hydrogen sulfide adsorption is accomplished by the use of an adsorbent.
Claim 12
Dependent Claim
26 words
The process according to claim 9 wherein the catalyst is made up of one metal selected from the group consisting of cobalt-molybdenum, nickel-molybdenum, nickel-cobalt-molybdenum and nickel-tungsten.
Claim 13
Dependent Claim
46 words
The process according to claim 10 wherein the adsorbent is one member selected from the group consisting of sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide, monoethanolamine, diethanolamine, isopropylamine, zinc oxide, copper oxide, iron oxide-chromium oxide, zinc oxide-copper oxide, zinc oxide-molybdenum oxide and zinc oxide-iron oxide.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.