Projects
Projects: Projects for Investigator |
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| Reference Number | EP/E04803X/1 | |
| Title | Towards Zero Carbon Emissions: Novel Low Pressure Molecular Natural Gas/CO2/H2 Storage and Separation using Semi-Clathrates | |
| Status | Completed | |
| Energy Categories | Fossil Fuels: Oil Gas and Coal(Oil and Gas, Other oil and gas) 50%; Fossil Fuels: Oil Gas and Coal(CO2 Capture and Storage, CO2 storage) 50%; |
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| Research Types | Basic and strategic applied research 80%; Applied Research and Development 20%; |
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| Science and Technology Fields | ENGINEERING AND TECHNOLOGY (General Engineering and Mineral & Mining Engineering) 50%; ENVIRONMENTAL SCIENCES (Earth Systems and Environmental Sciences) 50%; |
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| UKERC Cross Cutting Characterisation | Not Cross-cutting 100% | |
| Principal Investigator |
Professor B (Bahman ) Tohidi No email address given Institute Of Petroleum Engineering Heriot-Watt University |
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| Award Type | Standard | |
| Funding Source | EPSRC | |
| Start Date | 15 January 2008 | |
| End Date | 14 February 2011 | |
| Duration | 37 months | |
| Total Grant Value | £412,321 | |
| Industrial Sectors | Energy | |
| Region | Scotland | |
| Programme | Energy : Engineering | |
| Investigators | Principal Investigator | Professor B (Bahman ) Tohidi , Institute Of Petroleum Engineering, Heriot-Watt University (100.000%) |
| Recognised Researcher | Dr AJ Chapoy , Heriot-Watt University (0.000%) |
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| Industrial Collaborator | Project Contact , Orkney Islands Council (0.000%) |
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| Web Site | ||
| Objectives | ||
| Abstract | Recent work carried out in this laboratory has revealed that considerable volumes of low molecular weight gases, including methane, CO2 and hydrogen, can be incorporated into structural cavities of a class of little known clathrate hydrates (or 'gas hydrates'), namely the semi-clathrate hydrates of Quaternary Ammonium Salts (QAS, e.g. tetra-n-butylammonium bromide (TBAB) at very low pressures (to atmospheric) and ambient temperature (30 oC). In addition to favourable conditionsof thermodynamic stability, QAS hydrates have numerous further advantageous properties, including:1. The relative ease with which they can be formed/dissociated (by modest pressure and/or gentle temperature change)2. The potential capacity to store large volumes of gas (62 and 52 vol/vol achieved for CH4 and H2 respectively in our preliminary experiments)3. The capability to strongly discriminate between different gases during gas uptake/hydrate growth (controlled by QAS type and aqueous concentration)4. The ability to produce readily transportable (e.g. in batch reactors, pipelines) hydrate-water slurries5. A very low parent liquid vapour pressure (similar to common salt solutions), meaning gases released from hydrates are of a very high purity (unlike for other volatile organic hydrate promoters such as THF/tetrahydrofuran)6. A relatively low toxicity compared with other organic hydrate promoters (e.g., THF) and chemicals used in gas processing (e.g., amine solutions)These properties give QAS semi-clathrates significant potential as a novel tool for the industrial storage/transportation and separation of gases. Based on the strength of results to date, a patent for this technology has been filed (GB 0511546.4: A method for gas storage, transport, peak-shaving, and energy conversion (2005)). The aim of the work proposed here is to assess the potential of this family of hydrate formers through an intensive integrated experimental and theoretical study. The technology willbeinvestigated using three gases chosen specifically for their current importance in the global energy industry, namely natural gas (NG)/methane (CH4), carbon dioxide (CO2) and hydrogen (H2) | |
| Publications | (none) |
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| Final Report | (none) |
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| Added to Database | 31/05/07 | |
