Non-precious metal reforming catalyst and its application
A reforming catalyst and precious metal technology, applied in molecular sieve catalysts, physical/chemical process catalysts, organic chemistry, etc., can solve the problems of no development of nickel phosphide catalysts, low product selectivity, and rapid deactivation of carbon deposits, etc. High selectivity and stability, high catalytic reforming activity, low cost effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0019] Specifically, the preparation method of the above reforming catalyst includes the following steps:
[0020] (1) Using aluminum hydroxide dry rubber powder, ZSM-5, lanthanide metal oxides and nickel hypophosphite as raw materials; Ni 2 The precursor of P is Ni(H 2 PO 2 ) 2 ·6H 2 O, its loading amount is 5wt%-20wt% of the catalyst based on the weight of NiO; and adding an appropriate amount of acid peptizer, such as nitric acid, hydrochloric acid, acetic acid, formic acid, citric acid, trichloroacetic acid, malonic acid, etc., and its added amount accounts for 2.0wt% to 6.0wt% of the composite carrier; the water-to-powder ratio is generally 90% to 100%, preferably about 95%; the extrusion aid is generally sesame powder, polycarboxylic acid and the composite of the two, and the added amount accounts for the composite 1.0wt%~3.0wt% of the carrier weight; the addition amount of ZSM-5 accounts for 10~90wt% of the composite carrier; the lanthanide metal oxide is lanthanum oxide an...
Embodiment 1
[0023] This example prepares Ni 2 P (20wt%) non-precious metal reforming catalyst, its preparation method is as follows: Weigh 26.0g aluminum hydroxide dry rubber powder, 35.2g ZSM-5, 2.89g CeO 2 , 50.0g Ni(H 2 PO 2 ) 2 ·6H 2 O and 1.0g sesame powder and other raw materials, and mix them evenly; add 2.62g of 65-68% concentrated nitric acid to 63.9g of deionized water, and then add the prepared dilute nitric acid solution dropwise to the above-mentioned mixture. In the solid powder, hand-kneaded while dripping; the hand-kneaded mixture is continuously mixed and extruded on the extruder for 2 times, and then the catalyst precursor wet bar of specific shape is extruded, dried at room temperature, dried at 60°C under vacuum for 24h and Drying in nitrogen at 120°C for 12 hours, calcining the precursor at 300°C in a certain flow of nitrogen for 1 hour, and finally pretreating it in situ in a fixed bed reactor for 5 hours to obtain the reforming catalyst, numbered A.
Embodiment 2
[0025] This example prepares Ni 2 P (15wt%) non-precious metal reforming catalyst, its preparation method is as follows: Weigh 26.0g aluminum hydroxide dry rubber powder, 35.2g ZSM-5, 2.89g CeO 2 , 35.3g Ni(H 2 PO 2 ) 2 ·6H 2 O and 1.0g sesbania powder and other raw materials, other preparation processes are the same as in Example 1; the obtained reforming catalyst is numbered B.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More