System and method for thermogravimetric analysis
US4824790A · kind A · utility
18Cited by
16References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1986 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Oct 17, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3595
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An instrument for the chemical analysis of coal and other hydrocarbons combines TGA and FT-IR principles, and utilizes helium to carry the volatiles evolved by pyrolysis of the sample into the optical cell of the FT-IR spectrometer. The connection between the TGA furnace and the optical cell is substantially direct and non-impeding to fluid flow, and the carrier gas is preheated to the same temperature as the sample, preferably using a common heating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.