Borohydride fuel compositions and methods
a technology of borohydride and fuel composition, applied in the direction of waste based fuel, fuel, chemistry apparatus and processes, etc., can solve the problems of complex use, degraded fuel solution, hydrogen evolution
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Examples
example 1
[0036] A fuel tablet containing 87 wt-% sodium borohydride and 13 wt-% sodium hydroxide was prepared by mixing 15.2 grams of NaBH4 and 2.28 grams of NaOH using a mortar and pestle. The powder mixture was placed in a housing and compressed in a hydraulic press using 10,000 lbs of force to produce a puck of 2 inches in diameter. The degree of compaction and the height of the puck were controlled by the amount of force used in compression. When dissolved in water, the tablet produced fuel solutions with sodium borohydride and sodium hydroxide in a 6.7 to 1 ratio by weight, as illustrated in Table 4 below.
TABLE 4FuelWt-% In Fuel SolutionWater, gSolution, gNaBH4NaOH35.525030.44.5658.527620385.5210015.22.28182.522007.61.14
example 2
[0037] Solid hydrated sodium borohydride fuel mixtures were created by combining water, anhydrous NaBH4 powder, and anhydrous NaOH in the proportions shown in Table 5 below; (for reference, sodium borohydride hydrate, NaBH4.2H2O, is a solid containing 51.2 wt-% sodium borohydride and 48.8 wt-% water):
TABLE 5Compositionwt-% NaBH4wt-% NaOHwt-% H2O1550.144.92600.139.93700.129.94800.119.95900.19.9
(a) Pure solid sodium borohydride dehydrate
[0038] These solids became progressively more opaque and more “monolithic” as the proportion of sodium borohydride increased. That is, the fuel mixture of Composition 1 had better powder flow characteristics and could be shaken out of its container more easily than the fuel mixture of Composition 5. The higher concentrations become progressively more water deficient.
[0039] The samples as prepared above were dissolved in sufficient water to obtain fuel solutions of approximately 20 wt-% NaBH4 (for example, 100 g of sodium borohydride dihydrate disso...
example 3
[0040] Fuel compositions of the present invention were tested according to established test methods for substances which, on contact with water, emit flammable gases. A fuel mixture was prepared by combining 320 g of granular sodium borohydride and 48 g of granular sodium hydroxide in a flask and shaking the flask to mix. The fuel composition was tested according to the following procedures:
[0041] (1) A quantity of the fuel mixture measuring approximately 2 mm in diameter was placed in a trough of distilled water at 20° C. Gas evolution was noted, but no spontaneous ignition of the gas occurred.
[0042] (2) A quantity of the fuel mixture measuring approximately 2 mm diameter was placed on the center of a filter paper which was floated flat on the surface of distilled water at 20° C. in a 100 mm diameter evaporating dish. Gas evolution was noted, but no spontaneous ignition of the gas occurred.
[0043] (3) A pile approximately 20 mm high and 30 mm diameter with a hollow in the top was...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com