| 摘要 |
FIELD: oil and gas industry. ^ SUBSTANCE: invention can be used for natural and associated petroleum gas conditioning for long-distance transport. The natural gas is supplied to an adsorber wherein a combined adsorbent layer and a downstream silica gel layer are charged. On the adsorber, chemisorption of sulphide traces, such as mercaptans COS and H2S is enabled. On the silica gel layer, adsorption of water vapour and hydrocarbons C6+- is observed. As an adsorbent, aluminium oxide containing 325 wt % of metal oxides of the I-II group, namely: Na, K, Pb, Cs, Cu, Ag, Be, Mg, Ca, Sr, Ba, Zn, Cd and their mixtures is used. Regeneration of the sweet gas saturated silica gel layer and adsorbent is performed at temperature 220-280C. ^ EFFECT: invention allows for more effective natural gas drying and treating process ensured by prevention of carbon deposits and sulphur on the surface of silica gel of a bottom layer and for longer service life of the silica gel layer. ^ 1 tbl, 1 ex |
