scholarly journals Projection of Carbon Dioxide Emissions from Natural Gas Combustion and Steam-Reforming of Methane in Alberta

1991 ◽  
Vol 3 (1) ◽  
Author(s):  
Abbas Naini
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Steam Reforming ◽  
Carbon Dioxide Emissions ◽  
Gas Combustion ◽  
Steam Reforming Of Methane ◽  
Natural Gas Combustion

scholarly journals Sustainably Produced Hydrogen

2021 ◽  
Vol 1 ◽  
Author(s):  
Maria Gribova ◽  
Lutz Giese
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Greenhouse Gases ◽  
Crude Oil ◽  
Steam Reforming ◽  
Carbon Dioxide Emissions ◽  
Fossil Fuels ◽  
Hydrogen Gas ◽  
Oil And Natural Gas ◽  
Cracking Process

The fossil fuels used to provide energy, such as coal, crude oil and natural gas, are largely responsible for carbon dioxide emissions and other so-called greenhouse gases. Hydrogen gas (H2) can make a key contribution to decarbonization. It can be produced using various processes. Several processes are available to produce hydrogen, such as (i) steam reforming, (ii) cracking process or (iii) electrolysis. Depending on the source of origin, there is a distinction made between different “colours”. Gray, blue, turquoise, yellow and green hydrogen is avail­able, the latter made using Renewable Energies. However, items such as (i) possible variants of hydrogen, (ii) leading export countries or (iii) provision paths to be preferred in the future will be discussed in this paper.

scholarly journals Oxy-fuel combustion of natural gas: A review

Paliva ◽  
2020 ◽  
pp. 162-168
Author(s):  
Tomáš Hlinčík ◽  
Karel Ciahotný ◽  
Petr Buryan
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Power Distribution ◽  
Fossil Fuels ◽  
Operating Conditions ◽  
Electricity Production ◽  
Gas Combustion ◽  
Working Medium ◽  
Short Period ◽  
Natural Gas Combustion

The article compares newly developed methods of natural gas combustion through oxy-fuel technologies. It describes in detail the basic technological differences and ordering of technological parts for five different cycles using carbon dioxide and steam as a working medium in expansion turbines in electricity production. Among the procedures using steam as the working medium, attention is focused on GRAZ and CES cycles. In oxy-fuel procedures utilising carbon dioxide produced by natural gas combustion, the focus is on COOLCEP, MATIANS and COOPERATE cycles. For each cycle described, the respective operating conditions and principles are given. Additionally, detailed process diagrams are also provided. Important advantages of all of these cycles include the possibility of the combustion of not only liquefied natural gas but also other gaseous fossil fuels, whose introduction into production is not very time-consuming, and the possibility of connection to power distribution network within a relatively short period of time.

Research of pressure influence in the gas supply system on the energy consuption level of gas devices

2019 ◽  
Vol 6 (2) ◽  
pp. 56-63
Author(s):  
L. D. Pylypiv ◽  
І. І. Maslanych
Keyword(s):  
Natural Gas ◽  
Residential Buildings ◽  
Supply System ◽  
Normal Operation ◽  
Gas Combustion ◽  
Efficient Operation ◽  
Gas Consumption ◽  
Natural Gas Combustion ◽  
Gas Supply

There are investigated the influence of operating pressures in the gas supply system on the level of such energy indicators as efficiency, gas flow and gas overrun by gas equipment in residential buildings. There is established a relationship between the values of operating pressures in the gas supply system and the gas consumption level of household appliances. The causes of insufficient pressure in the gas networks of settlements are analyzed in the article. There is also developed an algorithm for calculating the change in the efficiency of gas appliances depending on the operational parameters of the gas network. It has been found that the most efficient operation of gas appliances is observed at an overpressure at the inlet of gas appliances of about 1200 Pa.To ensure the required quality of natural gas combustion among consumers and minimize gas consumption there are justified the following measures in the article: coordinating a domestic regulatory framework for assessing the quality of natural gas with international norms and standards; improving the preparation of gas coming from local wells before supplying it to gas distribution networks; auditing low pressure gas pipelines and reconstructing areas affected by corrosion; ensuring standard gas pressure in the network for the normal operation of domestic gas appliances; stating quality indicators of natural gas combustion by gas sales organizations.

Multiflame Patterns in Swirl-Driven Partially Premixed Natural Gas Combustion

2002 ◽  
Vol 125 (1) ◽  
pp. 40-45 ◽  
Author(s):  
K. P. Vanoverberghe ◽  
E. V. Van den Bulck ◽  
M. J. Tummers ◽  
W. A. Hu¨bner
Keyword(s):  
Natural Gas ◽  
Combustion Chamber ◽  
Gas Flow ◽  
State Transition ◽  
Gas Combustion ◽  
Bifurcation Phenomena ◽  
Major Species ◽  
Partially Premixed ◽  
Natural Gas Combustion ◽  
Low Nox Emission

Five different flame states are identified in a compact combustion chamber that is fired by a 30 kW swirl-stabilized partially premixed natural gas burner working at atmospheric pressure. These flame states include a nozzle-attached tulip shaped flame, a nonattached torroidal-ring shaped flame (SSF) suitable for very low NOx emission in a gas turbine combustor and a Coanda flame (CSF) that clings to the bottom wall of the combustion chamber. Flame state transition is generated by changing the swirl number and by premixing the combustion air with 70% of the natural gas flow. The flame state transition pathways reveal strong hysteresis and bifurcation phenomena. The paper also presents major species concentrations, temperature and velocity profiles of the lifted flame state and the Coanda flame and discusses the mechanisms of flame transition and stabilization.

Steam reforming of methane, ethane, propane, butane, and natural gas over a rhodium-based catalyst

2009 ◽  
Vol 142 (1-2) ◽  
pp. 42-51 ◽  
Author(s):  
Benjamin T. Schädel ◽  
Matthias Duisberg ◽  
Olaf Deutschmann
Keyword(s):  
Natural Gas ◽  
Steam Reforming ◽  
Steam Reforming Of Methane ◽  
Propane Butane

Active site separation of photocatalytic steam reforming of methane using Gas‐Phase Photoelectrochemical system

2021 ◽  
Author(s):  
Tomoki Kujirai ◽  
Akira Yamaguchi ◽  
Takeshi Fujita ◽  
Hideki Abe ◽  
Masahiro Miyauchi
Keyword(s):  
Carbon Dioxide ◽  
Gas Phase ◽  
High Temperatures ◽  
Steam Reforming ◽  
Active Site ◽  
Side Reaction ◽  
System P ◽  
Steam Reforming Of Methane

Steam reforming of methane (SRM) requires high temperatures to be promoted, and the production of carbon dioxide from the side reaction has also become a problem. In this study, we...

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