Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Total Research & Technology Feluy

Institute Francais Du Petrole

Karin Barthelet

Arnaud Baudot

Fabien Porcheron

Patrick Euzen

Marc-Antoine Lelias

Clotilde Jubin

Vincent Coupard

Nikolai Nesterenko

Philibert Leflaive

Malika Boualleg

Florent Guillou

Marie-Claire Marion

Patrick Bourges

Hugues Dulot

Antoine Daudin

Alexandre Nicolaos

Emmanuelle Bracco

Yann Lepine

Nicolas Legagneux

Laurent Bournay

Joel Patarin

Olivier Ducreux

Abdelhakim Koudil

Jean-Marc Schweitzer

Joseph Lopez

Jeremy Gazarian

Antoine Hugon

Gerhard Pirngruber

Gerald Chaplais

David Peralta

Tiziana Armaroli

Yannick Gelie

Céline Bouvry

The present invention relates to a mass for trapping silicon compounds, comprising a porous alumina-based support and at least one metal chosen from the metals from groups VIB and VIIIB, and exhibiting a grain density of at least 1.20 g/ml, a specific surface of at least 300 m/g and pores with a mean size of less than 6.5 nm, as determined by mercury porosimetry. The present invention also relates to a process for the preparation of said trapping mass and to a trapping process using said trapping mass.

Silicon trapping mass

The present invention relates to a process for trapping silicon compounds in a gaseous or liquid feedstock, comprising bringing the feedstock into contact with a trapping mass with a liquid hourly space velocity LHSV of less than 5 hor a gas hourly space velocity GHSV of less than 500 h.

Method for capturing silicon at low hourly space velocity

The present invention relates to an adsorbent comprising an alumina support and at least one alkali element, said adsorbent being obtained by introducing at least one alkali element, identical to or different from sodium, onto an alumina support the sodium content of which, expressed as NaO equivalent, before the introduction of the alkali element or elements, is comprised between 1000 and 5000 ppm by weight with respect to the total weight of the support. The invention also relates to processes for the preparation of said adsorbent and use thereof in a process for the elimination of acidic molecules such as COS and/or CO.

Alumina-based adsorbent containing sodium and doped with an alkali element for capturing acidic molecules

Capturing mercury or arsenic heavy metal from a moist gas containing water vapour, by:

Process for capturing a heavy metal contained in a moist gas, integrating a heat pump to cool the gas before eliminating water

A process for purifying an olefinic feedstock containing olefins with 4 carbon atoms and impurities including isobutanal, ethanol and acetone, the process including a pre-treatment containing at least one step of eliminating the ethanol and the water present in the olefinic feedstock and a step of simultaneously eliminating the isobutanal and the acetone, by passing the feedstock from the pre-treatment over at least one fixed bed of at least one adsorbent containing at least one material with a zeolite framework, the material with a zeolite framework being chosen from zeolites, AIPOs, SAPOs and mixtures thereof; the step of simultaneously eliminating the isobutanal and the acetone being carried out at a temperature of between 0 and 200&#xb0; C., at a pressure of 0.1 to 10 MPa and with an hourly space velocity of the feedstock over the fixed bed of 0.1 to 10 h.

Method for simultaneously eliminating isobutanal and a feedstocks by adsorption on a zeolite material

A capture mass for heavy metals, in particular mercury, contained in a gaseous or liquid feed, said mass comprising:

Heavy metal capture mass with improved performances

This invention pertains to a method for purifying an olefinic feedstock that comprises olefins with 4 carbon atoms and impurities including isobutanal, ethanol, and acetone, where said method comprises a pretreatment that comprises a step for eliminating acetone and optionally a step for eliminating the water that is present in said olefinic feedstock, and a step for simultaneously eliminating isobutanal and ethanol by running the feedstock obtained from the pretreatment over at least one fixed bed having at least one adsorbent that comprises at least one porous refractory oxide-based material, optionally impregnated with one or more alkaline or alkaline-earth cations; where said step for simultaneously eliminating isobutanal and ethanol operates at a temperature of between 0 and 200&#xb0; C., at a pressure of 0.1 to 10 MPa, and with an hourly volumetric flow rate (VVH) of the feedstock on the fixed bed of between 0.1 and 10 h.

Method for simultaneously eliminating isobutanal and ethanol from olefinic feedstocks by adsorption on a porous refractory oxide-based material

Capturing at least one heavy metal, from mercury and arsenic, contained in a moist gas comprising water vapor, by the following steps:

Process for capturing a heavy metal contained in a moist gas, integrating a heat pump to heat the gas introduced into a capture mass

The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a gaseous or liquid effluent by means of a capture mass comprising a support essentially based on alumina obtained by the gel method and at least one element selected from the group constituted by copper, molybdenum, tungsten, iron, nickel and cobalt. The invention is advantageously applicable to the treatment of gas of industrial origin, synthesis gas, natural gas, gas phase condensates and liquid hydrocarbon feeds.

Performance trapping mass and use thereof in heavy metal trapping

The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a dry or moist gaseous effluent () by means of a capture mass () comprising a porous support at least part of which is of low mesoporosity and an active phase based on sulphur. The invention is advantageously applicable to the treatment of gas of industrial origin, synthesis gas or natural gas.

Capture mass composed of elemental sulphur deposited on a porous support for capturing heavy metals

The invention concerns a capture mass for capturing heavy metals in a liquid or gaseous effluent, comprising a porous solid support, copper sulphide and at least one second metal sulphide the metal of which is selected from the group constituted by chromium, manganese, iron, cobalt and nickel, and in which the ratio of the percentage by weight of the metal or metals other than copper to the percentage by weight of copper is in the range 0.01 to 2. The invention also concerns a process for preparing said capture mass and a process for capturing heavy metals in a gaseous or liquid effluent, in which said effluent is brought into contact with said capture mass.

Polymetallic capture mass for capturing heavy metals

A process for the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a gaseous or liquid effluent by means of a fixed bed process using an adsorbent in the form of monolithic or supported extrudates, said extrudates being characterized by a length h and a section comprising at least three lobes. The adsorbent is composed of at least one active phase based on sulphur in the elemental form or in the form of a metallic sulphide. The process is advantageously applicable to the treatment of gas of industrial origin, synthesis gas, natural gas, gas phase condensates and liquid hydrocarbon feeds.

Shaping capture masses for the purification of a liquid or gas feed containing heavy metals

A novel crystalline hybrid solid with a mixed organic-inorganic matrix is described which has a three-dimensional structure containing an inorganic framework with metallic centers based on zinc connected together via deprotonated organic ligands constituted by the entity &#x2014;OC&#x2014;CH&#x2014;(O)&#x2014;CO. This novel solid is termed IM-21 and has an X-ray diffraction diagram as given below.

IM-21 organic-inorganic hybrid solid and process for preparing same

A method of monitoring breakthrough of an adsorbent bed consisting for example of ion-exchange resins, used during a stage of purification of an ester stream containing glycerin, obtained for example in a vegetable or animal oil and aliphatic monoalcohol transesterification process, permits the instantaneous detection of the presence of glycerol (glycerin) in the ester stream by arranging a turbidimeter at the adsorbent bed outlet.

Method of monitoring adsorbent bed breakthrough in a process for producing alkyl esters from vegetable or animal oil and from an aliphatic monoalcohol

The invention concerns a process for separating meta-xylene from a hydrocarbon feed comprising isomers containing 8 carbon atoms, comprising:

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Lyons, France

Karin Barthelet