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US 12,617,679 B2Granted
Chemical synthesis plant
AssigneeHaldor TopsøE A/S
InventorsSudip De Sarkar, Martin Østberg, Thomas Sandahl Christensen, Kim Aasberg-Petersen
Life of this patent
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Abstract
A plant, such as a hydrocarbon plant, is provided, which consists of a syngas stage for syngas generation and a synthesis stage where said syngas is synthesized to produce syngas derived product, such as hydrocarbon product. The plant makes effective use of various streams; in particular CO2 and H2. A method for producing a product stream, such as a hydrocarbon product stream is also provided.
Claims19
A method for producing a product stream, said method comprising the steps of:
- providing a plant, said plant comprising:
- a. a syngas stage, said syngas stage comprising an autothermal reforming (ATR) section;
- and
- b. a synthesis stage,
- said plant further comprising:
- a first feed comprising hydrogen to the syngas stage;
- a second feed comprising carbon dioxide to the syngas stage;
- a third feed comprising hydrocarbons to the syngas stage, upstream of said ATR section, said third feed being external to the plant;
- and
- a fourth feed comprising oxygen to the ATR section,
- wherein said syngas stage is arranged to provide a syngas stream and feed said syngas stream to the synthesis stage,
- supplying a first feed comprising hydrogen to the syngas stage;
- supplying a second feed comprising carbon dioxide to the syngas stage;
- supplying a third feed comprising hydrocarbons to the syngas stage, upstream of said ATR section;
- supplying a fourth feed comprising oxygen to the ATR section;
- providing a syngas stream in said syngas stage from at least said first, second, third and fourth feeds;
- feeding said syngas stream to the synthesis stage;
- and
- converting said syngas stream into at least a product stream and a hydrocarbon-containing off-gas stream in said synthesis stage,
- wherein the ratio of moles of carbon in the third feed comprising hydrocarbons to the moles of carbon in CO2 in the second feed is less than 0.5.
17 more elements
A plant, said plant comprising:
- a. a syngas stage, said syngas stage comprising an autothermal reforming (ATR) section;
- and
- b. a synthesis stage,
- said plant comprising:
- a first feed comprising hydrogen to the syngas stage;
- a second feed comprising carbon dioxide to the syngas stage;
- a third feed comprising hydrocarbons to the syngas stage, upstream of said ATR section, said third feed being external to the plant;
- and
- a fourth feed comprising oxygen to the ATR section,
- wherein said syngas stage is arranged to provide a syngas stream and feed said syngas stream to the synthesis stage, and
- wherein:
- the syngas stage additionally comprises a methanation section arranged upstream the ATR section;
- a part or all of the first feed is fed to the methanation section;
- a part or all of the second feed is fed to the methanation section;
- a part or all of the third feed is fed to the syngas stage, upstream said methanation section or between said methanation section and said ATR section,
- the synthesis stage has a product outlet and three different hydrocarbon-containing off-gas outlets, a first hydrocarbon-containing off-gas outlet being a first hydrocarbon-containing off-gas feed to the ATR section, a second hydrocarbon-containing off-gas outlet being a second hydrocarbon-containing off-gas feed to the methanation section, and a third hydrocarbon-containing off-gas outlet being a third hydrocarbon-containing off-gas feed to the methanation section.
13 more elements
Dependencies are inferred from the claim text.