Direct production of hydrogen and aromatics from methane or natural gas: Review of recent U.S. patents
Since the year 2000, the United States Patent and Trademark Office (USPTO) has granted a dozen patents for inventions related to methane dehydroaromatization processes. One of them was granted to UOP LLC (Des Plaines). It relates to a catalyst composition and preparation method. Two patents were granted to Conoco Phillips Company (Houston, TX). One was aimed at securing a process and operating conditions for methane aromatization. The other was aimed at securing a process that may be integrated with separation of wellhead fluids and blending of the aromatics produced from the gas with the crude. Nine patents were granted to ExxonMobil Chemical Patents Inc. (Houston, TX). Most of these were aimed at securing a dehydroaromatization process where methane-containing feedstock moves counter currently to a particulate catalyst. The coked catalyst is heated or regenerated either in the reactor, by cyclic operation, or in annex equipment, and returned to the reactor. The reactor effluent stream may be separated in its main components and used or recycled as needed. A brief summary of those inventions is presented in this review.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- DE-AC07-05ID14517
- OSTI ID:
- 1038928
- Report Number(s):
- INL/JOU-11-21372; TRN: US201209%%54
- Journal Information:
- Recent Patents on Chemical Engineering, Vol. 5, Issue 0; ISSN 1874-4788
- Country of Publication:
- United States
- Language:
- English
Similar Records
(Pittsburgh Energy Technology Center): Quarterly technical progress report for the period ending June 30, 1986
C1 Chemistry for the Production of Ultra-Clean Liquid Transportation Fuels and Hydrogen