Liberato Giampaolo Ciccarelli

Angela Carati

Cristina Flego

Luciano Cosimo Carluccio

Caterina Rizzo

Marco Tagliabue

Gian Paolo Borghi

Angelo Carugati

Roberto Pea

The present invention relates to a process for the separation of gases which comprises putting a mixture of gases in contact with a zeolite of the ESV type to obtain the selective adsorption of at least one of the gases forming the gaseous mixture. The present invention also relates to particular zeolitic compositions suitable as adsorbents.

Process and zeolitic materials for the separation of gases

Process for the removal/reduction of the hydrogen sulfide contained in natural gas which comprises: a) feeding natural gas and water to a reaction vessel maintained under thermodynamic conditions favorable for the formation of HS hydrates and substantially at the production pressure of natural gas; b) discharging the HS hydrates, from the bottom of the reaction vessel; c) optionally melting the hydrates and re-injecting water and/or gas comprising hydrogen sulfide and/or the hydrates as such into the same production field or into a geologically equivalent structure; and d) optionally feeding the remaining natural gas to a conventional softening process.

Process for the reduction/removal of the concentration of hydrogen sulfide contained in natural gas

Process for the dehydration of gases, comprising: absorbing water vapor by means of a hygroscopic liquid consisting essentially of one or more C-Cglycols and an additive capable of forming a minimum type azeotrope with water; distilling the glycol/water/additive mixture to obtain a top product consisting mainly of the water/additive azeotropic mixture and a bottom product consisting mainly of glycol and additive (hygroscopic liquid); recycling the regenerated hygroscopic liquid to the absorption stage.

Process for the dehydration of gases

Process for the removal of the hydrogen sulfide contained in natural gas, which comprises:

Growing community of inventors

San Giuliano Milanese, Italy

Liberato Giampaolo Ciccarelli