Conversion of alcohols to hydrocarbons using a dual catalyst system comprising basic oxide on mixed oxide or mesoporous carrier and etched metal loaded zeolite catalyst
A technology of zeolite catalysts and mixed oxides, applied in the direction of metal/metal oxide/metal hydroxide catalysts, carbon compound catalysts, catalysts containing molecular sieves, etc., to achieve the effect of improving stability
Active Publication Date: 2018-08-31
生态石油环保燃料I瑞典有限公司
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[0115] To achieve the desired aromatics levels (less than 35 vol%) and benzene content (ie well below 1 vol%), gasoline is produced from bioethanol using a two-stage reactor system (two reactor beds in series). The reactors contain two different catalysts whereby two or more reactors are maintained at different temperatures. In the first reactor, the temperature range should be in the range of 300°C to 550°C (the first reactor was operated at 400°C unless otherwise specified). Higher temperatures may promote undesired coke formation. 300°C to 550°C temperature range for use with Si 2 o 2 -Al 2 o 3 Ni on (selective to ethylene) and Cu on MgO-modified SBA-15 (selective mainly to butadiene some ethylene), selectively producing olefinic mixtures; still other geological types of materials can be used.
[0116] e.g. Ni / SiO 2 -Al 2 o 3 Ethylene was selectively produced (95%) over long reaction times. In the case of Cu-MgO / SBA-15, the catalyst selectively produced butadiene a...
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Abstract
A method for converting an alcohol to hydrocarbons comprises two serially placed catalysts. The fraction of aromatics is reduced to desired levels. The method comprises: a) contacting the alcohol witha first catalyst on a carrier, said carrier is selected from a mixed oxide and a mesoporous carrier, said first catalyst comprises at least one basic oxide and optionally at least one selected from the group consisting of metals and metal oxides, then b) contacting the resulting mixture from step a) with a second catalyst wherein said second catalyst is an etched metal loaded zeolite catalyst wherein the etched metal loaded zeolite catalyst is manufactured with a method comprising etching with subsequent loading of metal onto the catalyst, wherein the metal is in the form of nano particles, and wherein at least two different metals are loaded onto the etched zeolite catalyst. The hydrocarbons are recovered and used for instance for fuel including gasoline, kerosene, diesel, and jet propellant, and jet fuel. Naturally, other uses of hydrocarbons should not be excluded.
Description
technical field [0001] The present invention generally relates to methods of converting alcohols to hydrocarbons and water. Furthermore, the CO obtained during the optional regeneration cycle of the catalyst bed 2 Carbon dioxide of purely biological origin that can be collected and used elsewhere. For example, hydrocarbons are used as fuel for internal combustion engines and for other purposes. Background technique [0002] In general, it is desirable to be able to convert alcohols to hydrocarbons for purposes including, but not limited to, fuels. Different methods have been used in the past. In recent years, worldwide bioethanol production and conversion of ethanol to gasoline has created significant interest in the need for biorenewable alternatives to petroleum-based fuels and chemicals. Ethanol and many other alcohols (i.e., e.g. glycerol) cannot be readily used as motor fuels, presenting several technical difficulties such as low energy efficiency, cold start proble...
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IPC IPC(8): C07C1/20B01J21/06B01J29/42B01J29/85B01J21/02B01J21/10
CPCB01J29/85C07C1/20C07C1/24C07C2/12C10G3/00C07C2521/12C07C2523/755C07C2529/44C10G3/44C10G3/47C10G3/48C10G3/49C10G3/62C07C2521/08C07C2521/10C10G2400/02C10G2400/04C10G2400/08Y02P20/52B01J21/12B01J23/78B01J29/072B01J29/44B01J29/46Y02P30/20C10G50/00C10G3/45B01J35/19C07C11/04C07C11/167C07C9/14C07C11/02B01J23/755B01J23/83B01J29/42B01J35/30B01J21/10B01J23/002B01J2523/17B01J2523/27B01J2523/57B01J2523/69B01J2523/74B01J2523/824B01J2523/828B01J2523/842B01J2523/847
Inventor 杰里佩卡·米克拉阿贾伊库马尔·萨米卡努肯特·万克林特威廉·锡尔杰波
Owner 生态石油环保燃料I瑞典有限公司