Catalyst for preparing liquefied petroleum gas from syngas, and preparation method thereof
A technology of liquefied petroleum gas and catalyst, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of low added value and affect technical and economic benefits, achieve high conversion rate, increase benefits, reduce cost effect
Active Publication Date: 2019-09-27
BEIJING GAOXIN LIHUA TECH CO LTD +1
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- Description
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Problems solved by technology
Many by-products will be produced in this reaction. In the prior art, the methane content of by-products in the production of liquefied petroleum gas from syngas is relatively high. As we all know, methane in the products is a component with low added value, and the high amount of methane generated affects the technology. Economic benefits, beneficial to production
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0051] The specific implementation process is roughly the same as that of Comparative Example 1, the difference is that AgNO was added when preparing the solution 3 , the content of Ag is 0.5wt%, and the catalyst Cat1 is obtained. Cat1 prepared in Example 1 was used as the catalyst for the second stage. When reacting for 8 hours, the product was introduced into gas chromatography for on-line analysis. The reaction results are shown in Table 2.
Embodiment 2
[0053] Using the method of Example 1, the difference is that the amount of Ag added is reduced to obtain catalyst Cat2.
Embodiment 3
[0055] Adopt the method of embodiment 1, difference is that the amount of adding Ag increases, obtains catalyst Cat3.
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The invention discloses a catalyst for preparing liquefied petroleum gas from syngas, and a preparation method thereof. The catalyst comprises Ni, Cu, Ag and an Hbeta molecular sieve, and concretely comprises, by mass, 5-15% of Ni and Cu, 2% or less of Ag, and the balance of the Hbeta molecular sieve; and a mass ratio of Ni to Cu is 0.9:1 to 1:0.9, and a mass ratio of Ni to Ag is (4-22):1. The catalyst can be used in the second stage of a technology for preparing liquefied petroleum gas from syngas through a two-step process. The catalyst has the advantages of high conversion rate of the syngas, high selectivity of the liquefied petroleum gas in the product, great reduction of the methane content, and good activity stability in the application.
Description
technical field [0001] The invention relates to a catalyst for preparing liquefied petroleum gas from synthesis gas and a preparation method thereof, in particular to a catalyst used for the conversion of dimethyl ether and its preparation method for the second stage in the preparation of liquefied petroleum gas by a two-step synthesis process. Preparation. Background technique [0002] Liquefied petroleum gas (LPG) is mainly composed of propane and butane, and contains a small amount of propylene and butene. Liquefied Petroleum Gas (LPG) is an environmentally friendly energy source, featuring high calorific value, no dust, less pollution, and easy transportation. It has become an indispensable and important resource for civil and industrial production. China is adjusting its energy structure, and liquefied petroleum gas as a clean fuel is in line with the national development strategy. At present, various cities in China have successively established automobile gas statio...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B01J29/76C10L3/12
CPCB01J29/7615C10L3/12B01J2229/18
Inventor 张谦温宋兆伟扬大奎韩静
Owner BEIJING GAOXIN LIHUA TECH CO LTD