摘要:
Process for reforming hydrocarbons or producing aromatic hydrocarbons under severe operating conditions, in the presence of a catalyst comprising an alumina carrier and, expressed by weight with respect to alumina:(a) from 0.05 to 0.6% of platinum(b) from 0.01 to 2% of rhenium(c) from 0.05 to 3% of thallium or indium, and(d) from 0.1 to 10% of a halogen.
摘要:
Catalyst, particularly useful in catalytic reforming and for producing highly pure aromatic hydrocarbons, comprising an alumina carrier and containing, expressed in proportion of the weight of the alumina carrier:0.005 to 1% of platinum0.01 to 4% of gallium, indium or thallium0.01 to 2% of tungsten, and0.1 to 10% of halogen.
摘要:
This process applies to effluents from syntheses of the Fischer-Tropsch type; it comprises several treatments applied to the three cuts obtained from these effluents, i.e. a "light fraction", a "light oil" and a "decanted oil". These treatments comprise such steps as distillation, polymerization, alkylation, hydrotreatment, cracking-decarboxylation, isomerization and hydro reforming. The products are mainly gasoline, kerosene and gasoil.
摘要:
Catalyst for a process of hydroreforming or aromatic hydrocarbon production, comprising an alumina carrier, at least one noble metal of the platinum family, antimony, a metal selected from gallium, indium and thallium and halogen, said catalyst being used in a series of successive reaction zones as a moving bed, transferred from one reaction zone to the next, from the last reaction zone to a regeneration zone and from the latter to the first reaction zone, said process being preferably conducted at a temperature from 510.degree. to 600.degree. C. and under a pressure from 1 to 18 kg/cm.sup.2.
摘要:
Process for reforming hydrocarbons or producing aromatic hydrocarbons under severe operating conditions, in the presence of a catalyst comprising an alumina carrier and, expressed by weight with respect to alumina:(a) from 0.05 to 0.6% of platinum(b) from 0.01 to 2% of rhenium(c) from 0.05 to 3% of thallium or indium, and(d) from 0.1 to 10% of a halogen.
摘要:
A saturated hydrocarbon charge containing both butane and isobutane is subjected to selective hydrogenolysis in the presence of a catalyst comprising a specific carrier and 0.1 - 10 % b.w. of rhodium. Butane is thus selectively converted to ethane and propane, while isobutane is preserved or formed and can be recovered from the reaction product.
摘要:
The viscosity of heavy oils is reduced in order to facilitate pipe line transportation thereof. A fraction of the heavy oil is deasphalted in the presence of C.sub.5 -C.sub.7 hydrocarbons, a portion of the separated asphalt is converted to synthesis gas, at least a portion of said gas is used to manufacture an alcohol mixture including methanol and C.sub.2 to C.sub.10 alcohols, which mixture is admixed with the heavy oil before transportation thereof. This procedure is more beneficial to the transported heavy oil than the prior processes which do not comprise the conversion of the asphalt fraction of the heavy oil.
摘要:
Catalytic process for steam dealkylation of a charge containing at least one alkyl aromatic hydrocarbon, such as a charge issued from effluents of units for catalytic reforming or for producing aromatic hydrocarbons, wherein the catalyst contains an alumina carrier, from 0.1 to 1% of rhodium, from 0.05 to 1% of TiO.sub.2 and optionally from 0.1 to 1% of ruthenium, palladium, iridium, platinum or osmium and/or from 0.01 to 5% of lithium, sodium, potassium, rubidium or cesium.
摘要:
Aromatic hydrocarbons are hydrogenated in the presence of a catalyst obtained by admixing an aluminous carrier with a group VIII noble metal compound and a reducing agent of the formula Al X.sub.y R.sub.3-y where y is 1, 3/2 or 2, X is halogen and R is a monovalent hydrocarbon radical.
摘要:
A catalyst for the steam dealkylation of aromatic hydrocarbons, comprising a carrier and 3 metals, is regenerated in the reaction zone containing the catalyst bed, after disconnection of said zone from the producing unit, by proceeding to the successive steps of: scavenging said zone with hydrogen and then with an inert gas, progressively replacing said inert gas by a gas containing molecular oxygen, burning the catalyst at a temperature lower than 650.degree. C. so as to calcine the carbon deposits of the catalyst, passing through the catalyst bed an air stream containing halogen to increase the halogen content of the catalyst, calcining by means of an air stream at a temperature of 300.degree.-600.degree. C. and purging with an inert gas before reconnecting said reaction zone to the producing unit.