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Process for producing hydrogen

A technology for producing hydrogen and a process is applied in the field of hydrogen production from renewable raw materials, which can solve the problems of high cost and energy consumption, and achieve the effects of cost-effectiveness, low CO2 emission and simple process.

Pending Publication Date: 2022-04-26
WOOD ITALIA SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, electrolysis of hydrogen requires energy consumption, which ends up costly

Method used

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  • Process for producing hydrogen
  • Process for producing hydrogen

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Embodiment Construction

[0028] exist figure 1 In , the equipment for producing hydrogen by implementing the process of the present invention is denoted by 1 .

[0029] The plant 1 comprises a reforming section 2 and a separating section 3 connected in series by a connecting line 4 .

[0030] The feedstock to be processed, for example ethanol produced from biomass, is supplied to reforming section 2 via supply line 5 and represents the feed to be reformed in reforming section 5 .

[0031] In addition to ethanol, the processed feedstock (feed) can be another renewable feedstock obtained from biomass or other substances; for example, feedstocks such as alcohols (e.g. ethanol, glycerin, etc.), vegetable oil (soybean oil, palm oil, etc.), bio-oil (pyrolysis oil), etc.

[0032] Alternatively, the process of the present invention can also use hydrocarbon feedstocks such as vacuum gas oil (VGO), light combustible oils, deasphalted oils (which however require pretreatment, especially desulfurization).

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Abstract

A process for producing hydrogen, comprising: a step of reforming a carbonaceous feedstock to obtain a crude hydrogen reformed stream; a step of separating the crude hydrogen reformed stream to increase the hydrogen concentration and separating a high concentration hydrogen stream from the recovery gas stream; and a recycling step in which a portion of the high concentration hydrogen produced in the separation step is recycled together with the steam stream to the reforming step.

Description

[0001] Cross References to Related Applications [0002] This patent application claims priority from Italian patent application number 102019000008277 filed on June 6, 2019. The entire disclosure content thereof is incorporated herein by reference. technical field [0003] The present invention relates to a process for the production of hydrogen, in particular from renewable raw materials obtained (but not exclusively) from biomass. Background technique [0004] The production of hydrogen, especially for energy generation, is an area of ​​increasing interest. [0005] However, hydrogen production also has to face issues regarding energy efficiency and carbon emissions into the atmosphere. [0006] Currently, hydrogen is usually produced on a large scale using the steam reforming process of natural gas. However, these processes lead to high CO 2 emission. [0007] reduce CO 2 One way to reduce emissions is to produce hydrogen from renewable resources rather than tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/32C01B3/56
CPCC01B3/323C01B3/56C01B2203/0233C01B2203/043C01B2203/148C01B2203/1229
Inventor 法比奥·鲁杰里卢卡·曼库索瓦伦蒂娜·德佩特里
Owner WOOD ITALIA SRL