Abstract: Processing is described for magnetic resonance measurements of granular material in the reciprocal Fourier domain to determine grain size distribution and/or pore size distribution in the granular material. In some examples, the granular material is a rock from subterranean reservoir containing water, oil, gas or a combination thereof. The processing of the magnetic resonance data can include a Bayesian analysis and can be used to provide information on length scales below the resolution obtained practicably in conventional magnetic resonance imaging experiments.

Abstract: The invention is a method of dehydrogenating a hydrocarbon, especially an alkane, to form an unsaturated compound, especially an alkene, by contacting the alkane with a catalyst comprising a form of carbon which is catalytically active for the dehydrogenation reaction. The catalyst may be formed by passing a hydrocarbon over a metal compound at a temperature greater than 650° C.