Conversion of Alcohols to Hydrocarbons Using a Dual Catalyst System
A catalyst and alcohol conversion technology, applied in the direction of catalysts, heterogeneous catalyst chemical elements, molecular sieve catalysts, etc., to reduce the problem of coke formation and improve stability
Active Publication Date: 2021-10-08
生态石油环保燃料I瑞典有限公司
View PDF19 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
example
[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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Login to View More
Abstract
One method for converting alcohols to hydrocarbons involves two catalysts placed in series. The fraction of aromatics was reduced to the desired level. The method comprises: a) contacting an alcohol with a first catalyst on a support selected from mixed oxides and mesoporous supports, said first catalyst comprising at least one basic oxide and optionally selected from metal and metal oxide, then b) contacting the resulting mixture from step a) with a second catalyst, wherein the second catalyst is an etched metal-loaded zeolite catalyst, wherein the etched A metal-supported zeolite catalyst is produced by a method comprising etching and subsequently supporting a metal on the catalyst, wherein the metal is in the form of nanoparticles, and wherein at least two different metals are supported on the etched zeolite catalyst. The hydrocarbons are recovered and used in fuels including, for example, gasoline, kerosene, diesel, jet propellants, and jet fuel. Of course, 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...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C07C1/20B01J21/06B01J29/42B01J29/85B01J21/02B01J21/10
CPCB01J29/85C07C1/20C07C1/24C07C2/12C10G3/00C07C2521/12C07C2523/755C07C2529/44C10G3/44C10G3/47C10G3/48C10G3/49C10G3/62C07C2521/08C07C2521/10C10G2400/02C10G2400/04C10G2400/08Y02P20/52B01J21/12B01J23/78B01J29/072B01J29/44B01J29/46Y02P30/20C10G50/00C10G3/45B01J35/19B01J2235/15C07C11/04C07C11/167C07C9/14C07C11/02B01J23/755B01J23/83B01J29/42B01J35/30B01J21/10B01J23/002B01J2523/17B01J2523/27B01J2523/57B01J2523/69B01J2523/74B01J2523/824B01J2523/828B01J2523/842B01J2523/847
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