Patent ID: 7863341
Filing Date: 2011-01-04
Classification: C01B,C10G,C10J,C10K

Abstract:
1. A process for the preparation of syngas from two hydrocarbonaceous sources with different hydrogen:carbon ratios the first source comprising coal; and the second source comprising coal bed methane; in which process the first source is converted into a first syngas stream with a first hydrogen:carbon monoxide ratio, and the second source is converted into a second syngas stream with a second hydrogen:carbon monoxide ratio; the first and a part of the second syngas streams are combined into a combined syngas stream, the combined stream having an H 2 /CO-ratio of between 1.1 and 1.9, while using the other part of the second syngas stream for hydrogen supply, and wherein carbon dioxide as made in a hydrocarbon synthesis process is used for enhancing the production of the coal bed methane by injecting the carbon dioxide into a coal bed where it displaces methane molecules that are attached to the surface of the coal to result in a coal bed methane production.