摘要:
A hydrocarbon gas such as methane and LPG is desulfurized in the presence of oxygen and an oxidation catalyst to convert sulfur compounds in the gas to sulfur oxides. The sulfur oxides are then trapped downstream of the oxidation by an adsorbent. The amount of oxygen added to the hydrocarbon gas to promote oxidation is such that the sulfur compounds are selectively oxidized and the oxidation of the hydrocarbon gas is minimized to reduce hydrogen formation.
摘要:
An implant for medical procedures comprises a mesh structure having a multiplicity of openings formed through the thickness thereof, the mesh structure having at least a first connection region and a second connection region. The implant further comprises first and second bio-compatible fixation elements attached to the first and second connection regions respectively, the bio-compatible fixation elements each having a tissue adherence property greater than that of the mesh.