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Gases, Volume 4, Issue 2

2024 June - 5 articles

Cover Story: The transition to hydrogen as a sustainable energy source in a cost-effective manner necessitates repurposing existing natural gas infrastructure. This study investigates the technical and economic implications of two key natural gas pipeline expansion methods: pipeline looping and compressor stations. Given hydrogen’s lower energy density, increased volumetric flow rates are required, which could lead to changes in flow characteristics such as system pressures. Our analysis focuses on the 342 km × 36-inch Escravos–Lagos pipeline system, demonstrating that both expansion methods effectively manage flow parameters; however, compressor stations prove more cost-effective, offering up to 495% savings compared to pipeline looping, for 20% hydrogen blends. These findings support lower energy prices and net-zero emissions by minimizing the need for new infrastructure investments. View this paper
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Articles (5)

  • Article
  • Open Access
9 Citations
3,209 Views
16 Pages

23 May 2024

Carbon-capture technologies are extremely abundant, yet they have not been applied extensively worldwide due to their high cost and technological complexities. This research studies the ability of polymerized fly ash to capture carbon dioxide (CO2) u...

  • Article
  • Open Access
2 Citations
2,102 Views
20 Pages

Combustion Diagnosis in a Spark-Ignition Engine Fueled with Syngas at Different CO/H2 and Diluent Ratios

  • Santiago Martinez-Boggio,
  • Pedro Teixeira Lacava,
  • Felipe Solferini de Carvalho and
  • Pedro Curto-Risso

15 May 2024

The gasification of residues into syngas offers a versatile gaseous fuel that can be used to produce heat and power in various applications. However, the application of syngas in engines presents several challenges due to the changes in its compositi...

  • Article
  • Open Access
3 Citations
3,572 Views
23 Pages

30 April 2024

The growing importance of hydrogen as an energy carrier in a future decarbonised energy system has led to a surge in its production plans. However, the development of infrastructure for hydrogen delivery, particularly in the hard-to-abate sectors, re...

  • Article
  • Open Access
2,032 Views
16 Pages

8 April 2024

In this paper, a novel concept of a finned piston system is presented and analyzed in which the compression heat is continuously extracted from the compression chamber. The resulting compression characteristic moves in the direction of an isothermal...

  • Article
  • Open Access
1 Citations
2,576 Views
18 Pages

Thermodynamic Analysis of Low-Emission Offshore Gas-to-Wire Firing CO2-Rich Natural Gas: Aspects of Carbon Capture and Separation Systems

  • Alessandra de Carvalho Reis,
  • Ofélia de Queiroz Fernandes Araújo and
  • José Luiz de Medeiros

25 March 2024

Despite the growth of renewable energy, fossil fuels dominate the global energy matrix. Due to expanding proved reserves and energy demand, an increase in natural gas power generation is predicted for future decades. Oil reserves from the Brazilian o...

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Gases - ISSN 2673-5628