Small-Scaled Production of Blue Hydrogen with Reduced Carbon Footprint

Yuriy Zagashvili, Aleksey Kuzmin, George Buslaev and Valentin Morenov
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Yuriy Zagashvili: “HTR” LLC, 190000 Saint Petersburg, Russia
Aleksey Kuzmin: “HTR” LLC, 190000 Saint Petersburg, Russia
George Buslaev: Department of Oil and Gas, Saint Petersburg Mining University, 199106 Saint Petersburg, Russia
Valentin Morenov: Department of Oil and Gas, Saint Petersburg Mining University, 199106 Saint Petersburg, Russia

Energies, 2021, vol. 14, issue 16, 1-11

Abstract: This article reviews a method of hydrogen production based on partial non-catalytic oxidation of natural gas in an original synthesis gas generator. The working principles of the unit are similar to those of liquid-propellant rocket engines. This paper presents a description of the operation and technical characteristics of the synthesis gas generator. Its application in the creation of small-scaled plants with a capacity of up to 5–7 thousand m 3 /h of hydrogen is justified. Hydrogen production in the developed installation requires a two-stage method and includes a technological unit for producing a hydrogen-containing gas. Typical balance compositions of hydrogen-containing gas at the synthesis gas generator’s outlet are given. To increase the hydrogen concentration, it is proposed to carry out a two-stage steam catalytic conversion of carbon monoxide contained in the hydrogen-containing gas at the synthesis gas generator’s outlet using a single Cu–Zn–cement-containing composition. Based on thermodynamic calculations, quasi-optimal modes of natural gas partial oxidation with oxygen are formulated and the results of material balance calculation for the installation are presented. In order to produce “blue” hydrogen, the scheme of carbon dioxide separation and liquefaction is developed. The conclusion section of the paper contains the test results of a pilot demonstration unit and the recommendations for improving the technology and preventing soot formation.

Keywords: hydrogen; partial oxidation; synthesis gas generator; combustion chamber; evaporation chamber; carbon oxide steam conversion; small-scaled hydrogen production; soot formation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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