Title:
METHOD FOR DIRECTLY PREPARING GASOLINE FRACTION HYDROCARBONS BY CARBON DIOXIDE HYDROGENATION
Document Type and Number:
WIPO Patent Application WO/2018/049938
Kind Code:
A1
Abstract:
A method for directly preparing gasoline fraction hydrocarbons by carbon dioxide hydrogenation, comprising: directly converting a mixed gas consisting of carbon dioxide and hydrogen with the catalysis of a multifunctional composite catalyst under reaction conditions of a temperature of 250-450°C, a pressure of 0.01-10.0 MPa, an airspeed of 500-50,000 mL/(h•gcat), and a H2/CO2 molar ratio of 0.5-8.0, to produce gasoline fraction hydrocarbons. The composite catalyst is a mixture of a first component and a second component, the first component being an iron-based carbon dioxide hydrogenation catalyst, and the second component being one or more than two metal-modified or non-modified molecular sieves. In the method, a per-pass conversion of CO2 may be up to 33% or higher; the methane selectivity in hydrocarbon products is lower than 8%; the selectivity of gasoline fraction hydrocarbons having 5-11 carbon atoms is higher than 70%; and gasoline fraction is dominated by isoparaffins and aromatic hydrocarbons, and the octane value is high.
Inventors:
GE QINGJIE (CN)
WEI JIAN (CN)
XU HENGYONG (CN)
WEI JIAN (CN)
XU HENGYONG (CN)
Application Number:
PCT/CN2017/095133
Publication Date:
March 22, 2018
Filing Date:
July 31, 2017
Export Citation:
Assignee:
DALIAN INST CHEM & PHYSICS CAS (CN)
International Classes:
B01J29/46; B01J29/40; C07C9/14; C07C15/02
Domestic Patent References:
| WO2012135089A1 | 2012-10-04 |
Foreign References:
| CN1127240A | 1996-07-24 | |||
| CN104117380A | 2014-10-29 | |||
| CN105289710A | 2016-02-03 |
Attorney, Agent or Firm:
SHENYANG PATENT & TRADEMARK AGENCY ACADEMIA SINICA (CN)
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