A hybrid method combining membrane separation and chemical absorption for flexible CH 4 refinement and CO 2 separation in natural gas

2021 ◽  
Author(s):  
Jian Liu ◽  
Chengdong Kong ◽  
Zhongxiao Zhang ◽  
Liu Yang
Keyword(s):  
Natural Gas ◽  
Hybrid Method ◽  
Membrane Separation ◽  
Chemical Absorption

Research Trends of Carbon Dioxide Capture using Ionic Liquids and Aqueous Amine-Ionic Liquids Mixtures

2016 ◽  
Vol 13 (1) ◽  
pp. 53
Author(s):  
Siti Nabihah Jamaludin ◽  
Ruzitah Mohd Salleh
Keyword(s):  
Ionic Liquids ◽  
Co2 Capture ◽  
Membrane Separation ◽  
Carbon Dioxide Capture ◽  
Global Climate ◽  
Research Trends ◽  
Co2 Absorption ◽  
Absorption Process ◽  
Chemical Absorption ◽  
Factors Influencing

Anthropogenic CO2 emissions has led to global climate change and widely contributed to global warming since its concentration has been increasing over time. It has attracted vast attention worldwide. Currently, the different CO2 capture technologies available include absorption, solid adsorption and membrane separation. Chemical absorption technology is regarded as the most mature technology and is commercially used in the industry. However, the key challenge is to find the most efficient solvent in capturing CO2. This paper reviews several types of CO2 capture technologies and the various factors influencing the CO2 absorption process, resulting in the development of a novel solvent for CO2 capture.

Xenon recovery from natural gas by hybrid method based on gas hydrate crystallisation and membrane gas separation

2021 ◽  
Vol 86 ◽  
pp. 103740
Author(s):  
Maria S. Sergeeva ◽  
Nikita A. Mokhnachev ◽  
Dmitry N. Shablykin ◽  
Andrey V. Vorotyntsev ◽  
Dmitriy M. Zarubin ◽  
...  
Keyword(s):  
Natural Gas ◽  
Gas Separation ◽  
Hybrid Method ◽  
Gas Hydrate ◽  
Membrane Gas Separation

Gas Turbine Combined Cycle With CO2-Capture Using Auto-Thermal Reforming of Natural Gas

2000 ◽  
Author(s):  
Thormod Andersen ◽  
Hanne M. Kvamsdal ◽  
Olav Bolland
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Process Integration ◽  
Combined Cycle ◽  
Co2 Removal ◽  
Gas Turbine Combustor ◽  
Chemical Absorption ◽  
Fuel Gas ◽  
The Impact ◽  
Water Gas

A concept for capturing and sequestering CO2 from a natural gas fired combined cycle power plant is presented. The present approach is to decarbonise the fuel prior to combustion by reforming natural gas, producing a hydrogen-rich fuel. The reforming process consists of an air-blown pressurised auto-thermal reformer that produces a gas containing H2, CO and a small fraction of CH4 as combustible components. The gas is then led through a water gas shift reactor, where the equilibrium of CO and H2O is shifted towards CO2 and H2. The CO2 is then captured from the resulting gas by chemical absorption. The gas turbine of this system is then fed with a fuel gas containing approximately 50% H2. In order to achieve acceptable level of fuel-to-electricity conversion efficiency, this kind of process is attractive because of the possibility of process integration between the combined cycle and the reforming process. A comparison is made between a “standard” combined cycle and the current process with CO2-removal. This study also comprise an investigation of using a lower pressure level in the reforming section than in the gas turbine combustor and the impact of reduced steam/carbon ratio in the main reformer. The impact on gas turbine operation because of massive air bleed and the use of a hydrogen rich fuel is discussed.

Membrane separation of nitrogen from natural gas: A case study from membrane synthesis to commercial deployment

2010 ◽  
Vol 346 (2) ◽  
pp. 270-279 ◽  
Author(s):  
Kaaeid A. Lokhandwala ◽  
Ingo Pinnau ◽  
Zhenjie He ◽  
Karl D. Amo ◽  
Andre R. DaCosta ◽  
...  
Keyword(s):  
Natural Gas ◽  
Membrane Separation ◽  
Membrane Synthesis

Catalytic Partial Oxidation and Membrane Separation to Optimize the Conversion of Natural Gas to Syngas and Hydrogen

ChemSusChem ◽  
2011 ◽  
Vol 4 (12) ◽  
pp. 1787-1795 ◽  
Author(s):  
Daniela Capoferri ◽  
Barbara Cucchiella ◽  
Gaetano Iaquaniello ◽  
Alessia Mangiapane ◽  
Salvatore Abate ◽  
...  
Keyword(s):  
Natural Gas ◽  
Partial Oxidation ◽  
Membrane Separation ◽  
Catalytic Partial Oxidation

scholarly journals The Impact of Various Natural Gas Contaminant Exposures on CO2/CH4 Separation by a Polyimide Membrane

Membranes ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 324
Author(s):  
Nándor Nemestóthy ◽  
Péter Bakonyi ◽  
Piroska Lajtai-Szabó ◽  
Katalin Bélafi-Bakó
Keyword(s):  
Natural Gas ◽  
Membrane Separation ◽  
Gas Permeation ◽  
Natural Gases ◽  
Gas Processing ◽  
Polyimide Membrane ◽  
Naturally Occurring ◽  
Benzene Toluene ◽  
And Performance ◽  
The Impact

In this study, hollow fibers of commercial polyimide were arranged into membrane modules to test their capacity and performance towards natural gas processing. Particularly, the membranes were characterized for CO2/CH4 separation with and without exposure to some naturally occurring contaminants of natural gases, namely hydrogen sulfide, dodecane, and the mixture of aromatic hydrocarbons (benzene, toluene, xylene), referred to as BTX. Gas permeation experiments were conducted to assess the changes in the permeability of CO2 and CH4 and related separation selectivity. Compared to the properties determined for the pristine polyimide membranes, all the above pollutants (depending on their concentrations and the ensured contact time with the membrane) affected the permeability of gases, while the impact of various exposures on CO2/CH4 selectivity seemed to be complex and case-specific. Overall, it was found that the minor impurities in the natural gas could have a notable influence and should therefore be considered from an operational stability viewpoint of the membrane separation process.

Evaluation of Carbon Capture Potential in the Brazilian Cement Sector

2016 ◽  
Vol 830 ◽  
pp. 46-53
Author(s):  
Camilla C.N. de Oliveira ◽  
Alexandre Szklo ◽  
Pedro R.R. Rochedo
Keyword(s):  
Natural Gas ◽  
Petroleum Coke ◽  
Carbon Capture ◽  
Abatement Cost ◽  
Cement Industry ◽  
Emission Sources ◽  
Fuel Saving ◽  
Chemical Absorption ◽  
Fuel Switching ◽  
Stationary Sources

Cement industry has always been among the largest industrial CO2 emission sources, accounting for 7% of global CO2 emission from stationary sources. CCS technology appears as a major option, in addition to fuel saving and fuel switching measures, able to mitigate CO2 emissions. This study evaluates the potential application of carbon capture in the Brazilian cement sector. Among the CO2 capture technologies studied, the only commercially available for the existing cement plants in Brazil is based on the post-combustion capture route, relying on chemical absorption. To calculate the potential of retroffiting Brazilian cement facilities, it was assumed that the steam and power needed by the capture plant would be generated from a cogeneration plant with natural gas or petroleum coke, or a petroleum coke boiler or even a natural gas boiler would generate steam, and power would be purchased from the grid. Findings indicated an abatement cost hovering between $ 114/tCO2 (in Southeast, South and Midwest of Brazil) and $ 117/tCO2 (in North and Northeast). The gross potential equaled 47 MtCO2/year, being reduced to 31 MtCO2/year after discounting the fraction withouth water availability to implement a carbon capture facility.

Sign in / Sign up

Export Citation Format

Share Document