Abstract: The present invention relates to a process for the conversion of an alcohols mixture (A) comprising about 20 w % to 100% isobutanol to make essentially propylene, comprising: a) introducing in a reactor (A) a stream comprising the mixture (A), mixed with a stream (D1) comprising olefins having 4 carbon atoms or more (C4+ olefins), optionally water, optionally an inert component, b) contacting said stream with a catalyst (A1) at a temperature above 500° C.

Abstract: The present invention relates to a process for the conversion of an alcohol mixture (A) comprising about 20 w % to 100% isobutanol to make essentially propylene, comprising: a) introducing in a reactor (A) a stream comprising the mixture (A), optionally water, optionally an inert component, b) contacting said stream with a catalyst (A1) at a temperature above 450° C.

Abstract: A catalyst can include a phosphorus modified zeolite having partly an ALPO structure. The ALPO structure can be determined by a signal between 35-45 ppm in 27Al MAS NMR spectrum. The zeolite can include at least one ten member ring in the structure thereof. The catalyst can also include a binder and one or more metal oxides. The catalyst can be used in processes in the presence of steam at high temperatures, such as temperatures that are above 300° C. and up to 800° C. The catalyst can be used in alcohol dehydration, olefin cracking, MTO processes, and alkylation of aromatic compounds with olefins and/or alcohols.

Abstract: A catalyst can be used to convert an alcohol in a dehydration process into an olefin having the same number of carbon atoms as the alcohol. The catalyst can include a phosphorus modified zeolite made by providing a zeolite with at least one ten member ring in the structure, steaming the zeolite, mixing the zeolite with binders and shaping additives, and shaping the zeolite. An ion-exchange step can be performed, and the shaped catalyst can be steamed. Phosphorus can be introduced on the catalyst at an amount of at least 0.1 wt %, such as by dry impregnation or chemical vapor deposition. A metal can be introduced. The catalyst can be washed and/or calcinated, and steamed in an equilibration step. The steaming severity (X) can be at least about 2. The catalyst can be steamed at a temperature above 625° C., such as a temperature ranging from 700 to 800° C.

Abstract: A method to make a phosphorus modified zeolite can include providing a zeolite including at least one ten member ring in the structure steaming the zeolite, mixing the zeolite with one or more binders and shaping additives, and then shaping the mixture. The method can include making a ion-exchange. The shaped mixture can be steamed. Phosphorous can be introduced on the catalyst to introduce at least 0.1 wt % of phosphorus, such as be dry impregnation or chemical vapor deposition. A metal, such as calcium, can be introduced. The catalyst can be washed, calcinated, and then steamed. The steaming severity (X) can be at least about 2. The catalyst can be steamed at a temperature above 625° C., such as a temperature ranging from 700 to 800° C. The catalyst can be used in alcohol dehydration, olefin cracking, MTO processes, and alkylation of aromatics by alcohols with olefins and/or alcohols.

Abstract: A method to make a phosphorus modified zeolite can include providing a zeolite having at least one ten member ring, making an ion-exchange, steaming the zeolite, and introducing phosphorus on the zeolite. The zeolite can be mixed with one or more binders and shaping additives, and then shaped. A metal can be introduced, and the catalyst can be washed, calcined, and steamed in an equilibration step. The steaming can be at performed at a steam severity (X) of at least about 2. The steaming can be performed at a temperature above 625° C. The catalyst can be used in alcohol dehydration, olefin cracking, MTO processes, and alkylation of aromatics by alcohols with olefins and/or alcohols.

Abstract: The present invention relates to a process for the conversion of an alcohol mixture (A) comprising about 20 w % to 100% isobutanol to make essentially propylene, comprising: a) introducing in a reactor (A) a stream comprising the mixture (A), optionally water, optionally an inert component, b) contacting said stream with a catalyst (A1) at a temperature above 450° C.

Abstract: The present invention relates to a process for the production of fuel additives in which in a first step isobutanol is subjected to a simultaneous dehydration and skeletal isomerisation to make substantially corresponding olefins, having the same number of carbons and consisting essentially of a mixture of n-butenes and iso-butene and in a second step the butene mixture is subjected to etherification, said process comprising: a) introducing in at least one reactor a stream (A) comprising at least 40 wt % isobutanol, optionally an inert component, b) contacting said stream with at least one catalyst in said reactor(s) at conditions effective to simultaneously dehydrate and skeletal isomerise at least a portion of the isobutanol to make a mixture of n-butenes and iso-butene, c) removing the inert component if any, recovering from said reactor(s) a stream (B) comprising a mixture of n-butenes and iso-butene, d) sending the stream (B) to at least one etherification reactor and contacting stream (B) with at lea

Abstract: The present invention relates to a process for the production of propylene in which in a first step isobutanol is subjected to a simultaneous dehydration and skeletal isomerisation to make substantially corresponding olefins, having the same number of carbons and consisting essentially of a mixture of n-butenes and iso-butene and in a second step n-butenes are subjected to methathesis, said process comprising: a) introducing in a reactor a stream (A) comprising isobutanol, optionally water, optionally an inert component, b) contacting said stream with a catalyst in said reactor at conditions effective to dehydrate and skeletal isomerase at least a portion of the isobutanol to make a mixture of n-butenes and iso-butene, c) recovering from said reactor a stream (B), removing water, the inert component if any and unconverted isobutanol if any to get a mixture of n-butenes and iso-butene, d) fractionating said mixture to produce a n-butenes stream (N) and to remove the essential part of isobutene optionally recy

Abstract: The present invention relates to a process for making essentially ethylene and propylene comprising: a) providing an alcohol mixture (A) comprising about 20 w % to 100% isobutanol, b) introducing in a reactor (A) a stream comprising the mixture (A) mixed with methanol or dimethyl ether or mixture thereof, optionally water, optionally an inert component, c) contacting said stream with a catalyst (A1) in said reactor (A), the MTO reactor, at conditions effective to convert at least a part of the alcohol mixture (A) and at least a part of the methanol and/or dimethyl ether to olefins, d) recovering from said reactor (A) an effluent comprising: ethylene, propylene, butene, water, optionally unconverted alcohols, various hydrocarbons, and the optional inert component of step b), e) fractionating said effluent of step d) to produce at least an ethylene stream, a propylene stream, a fraction consisting essentially of hydrocarbons having 4 carbon atoms or more, water and the optional inert component of step a), op

Abstract: The present invention is a process for the dehydration of an alcohol having at least 2 carbon atoms to make the corresponding olefin, comprising: a) introducing in a reactor a stream (A) comprising at least an alcohol, optionally water, optionally an inert component, b) contacting said stream with an acidic catalyst in said reactor at conditions effective to dehydrate at least a portion of the alcohol to make an olefin, c) recovering from said reactor a stream (B) comprising: the inert component and at least an olefin, water and optionally unconverted alcohol, d) optionally fractionating the stream (B) to recover the unconverted alcohol and recycling said unconverted alcohol to the reactor of step a), e) optionally fractionating the stream (B) to recover the inert component, water and the olefin and optionally recycling said inert component and optionally a part of the water to the reactor of step a), wherein, f) an effective amount of a component capable to neutralize a part of the catalyst active site is i

Abstract: The present invention relates to a process for the conversion of an alcohols mixture (A) comprising about 20 w % to 100% isobutanol to make essentially propylene, comprising: a) introducing in a reactor (A) (also called the first reaction zone or low temperature reaction zone) a stream comprising the mixture (A), optionally water, optionally an inert component, b) contacting said stream with a catalyst (A1) in said reactor (A) at conditions effective to dehydrate: at least a portion of the isobutanol to essentially butenes, at least a portion of other alcohols, if any, to essentially olefins other than butene having the same carbon number as the alcohol precursor, c) recovering from said reactor (A) an effluent comprising: butenes, optionally olefins other than butene, water, optionally unconverted alcohols of the mixture (A), various hydrocarbons, and the optional inert component of step a), d) fractionating said effluent of step c) to remove a portion or all the water, unconverted alcohols, optionally th

Abstract: The present invention (in a first embodiment) relates to a process for the simultaneous dehydration and skeletal isomerisation of isobutanol to make substantially corresponding olefins, having the same number of carbons and consisting essentially of a mixture of n-butenes and iso-butene, said process comprising: a) introducing in a reactor a stream (A) comprising isobutanol, optionally water, optionally an inert component, b) contacting said stream with a catalyst in said reactor at conditions effective to dehydrate and skeletal isomerise at least a portion of the isobutanol to make a mixture of n- butenes and iso-butene, c) recovering from said reactor a stream (B), removing water, the inert component if any and unconverted isobutanol if any to get a mixture of n-butenes and iso-butene, Wherein, the WHSV of the isobutanol is at least 1 h?1 or the temperature is from 200° C. to 600° C. and the catalyst is capable to make simultaneously the dehydration and skeletal isomerization of butene.

Abstract: The present invention relates to a process for the conversion of an alcohols mixture (A) comprising about 20 w % to 100% isobutanol to make essentially propylene, comprising: a) introducing in a reactor (A) a stream comprising the mixture (A), mixed with a stream (D1) comprising olefins having 4 carbon atoms or more (C4+ olefins), optionally water, optionally an inert component, b) contacting said stream with a catalyst (A1) at a temperature above 500° C.

Abstract: A process for dehydration of an ethanol feedstock into ethylene, comprising the vaporization of said ethanol feedstock in a mixture with at least a portion of the recycled purified water stream from heat exchange with the effluent that is obtained from the last reactor.

Abstract: The present invention (in a first embodiment) relates to a process for the dehydration of an alcohol having at least 2 carbon atoms to make the corresponding olefin, comprising: introducing in a reactor a stream (A) comprising at least an alcohol, optionally water, optionally an inert component, contacting said stream with a catalyst in said reactor at conditions effective to dehydrate at least a portion of the alcohol to make an olefin, recovering from said reactor an olefin containing stream (B), Wherein, the catalyst is a crystalline silicate of the group FER, MWW, EUO, MFS, ZSM-48, MIT or TON having Si/Al under 100, or a dealuminated crystalline silicate of the group FER, MWW, EUO, MFS, ZSM-48, MTT or TON having Si/Al under 100, or a phosphorus modified crystalline silicate of the group FER, MWW, EUO, MFS, ZSM-48, MTT or TON having Si/Al under 100, the WHSV of the alcohol is at least 4 h?1 and/or the temperature ranges from 320° C. to 600° C.