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Catalyst, preparation method thereof and method for converting light olefin and/or alkane into aromatic hydrocarbon

A technology of light olefins and catalysts, which is applied in the direction of catalyst activation/preparation, addition of unsaturated hydrocarbons and saturated hydrocarbons, catalysts, etc., which can solve the problems of increased operating costs of catalysts, achieve good life, and high BTX yield Effect

Pending Publication Date: 2022-07-01
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing catalysts and the methods used face challenges such as rapid catalyst deactivation requiring repeated chemical treatment and / or regeneration leading to higher demands on equipment and facilities and the need to use more complex reactors leading to increased operating costs, etc. challenges and problems

Method used

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  • Catalyst, preparation method thereof and method for converting light olefin and/or alkane into aromatic hydrocarbon
  • Catalyst, preparation method thereof and method for converting light olefin and/or alkane into aromatic hydrocarbon
  • Catalyst, preparation method thereof and method for converting light olefin and/or alkane into aromatic hydrocarbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] The molar ratio of nickel nitrate (Ni(NO) was 0.4:1. 3 ) 2 ) and phosphoric acid (H 3 PO 4 )mix. Ammonium hydroxide was added until the pH of the mixture was greater than 7, the mixture was vacuum filtered while washing thoroughly with deionized water, and then dried in an oven at 80 °C overnight, named Sample A with Ni:P 1:1 with NiHPO 4 chemical formula.

Embodiment 2

[0084] Mix 0.1 g of sample A and 10 g of ZSM-5 with a SAR of 30 evenly, then crush it with a hydraulic press, and bake it in air at 550 °C for 4 hours, then sieve it with 20-40 mesh, and the sample is named as sample B. NiHPO 4 The content of Ni:P is 0.18% by weight, and Ni:P is 1:1.

Embodiment 3

[0086] Sample B was reduced in hydrogen at 630°C for 60 minutes, designated as sample C, which contained nickel phosphide (NiP) and zeolite. Sample C can also be obtained directly from nickel phosphides and zeolites.

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Abstract

The invention provides a catalyst, a preparation method thereof and a method for converting light olefins and / or alkanes into aromatic hydrocarbons. The catalyst contains a microporous zeolite-like material, a binder accounting for 0-50 wt% of the total weight of the catalyst and a metal phosphide accounting for 0.01-10 wt% of the total weight of the catalyst. Alkanes and / or olefins can be aromatized with high selectivity when providing aromatics, such as one or more BTX products, using the catalysts described herein or using the processes provided herein. The yield of the obtained BTX is high, and the catalyst has a good service life in the use process.

Description

technical field [0001] The present invention generally relates to petrochemical processing, and more particularly, to a catalyst, a method for its preparation, and a method for converting light olefins and / or alkanes to aromatics. Background technique [0002] The shale gas revolution has led to exponential growth in North American natural gas (NG) and natural gas liquids (NGL) production since the mid-2000s. This has driven prices of NGL components, mainly ethane, to record lows over the past few years. Inexpensive and abundant ethane is the main driver for ethylene production converted from traditional naphtha feedstocks to ethane crackers. The supply of ethane and ethylene continues to increase, which keeps them relatively cheap and readily available in the market. At the same time, switching from naphtha to ethane crackers results in much lower aromatics yields, causing shortages in aromatics production and thus creating a large price gap between ethane or ethylene and...

Claims

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Application Information

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IPC IPC(8): B01J27/185B01J29/46C07C2/58C07C15/02
CPCB01J27/1853B01J29/46C07C2/58C07C15/02B01J37/0018C07C2/42C07C2527/185C07C2/76C07C5/3335C07C2529/40C07C2523/755C07C2523/745Y02P20/52B01J35/40C07C15/04C07C15/06C07C15/08C07C11/04B01J21/04B01J37/18C07C2521/04C07C2/74C07C2529/46B01J37/04
Inventor 丽萨·阮王辉单军军路易斯·吉伦刘华张爱华乔舒亚·迈尔斯
Owner CHNA ENERGY INVESTMENT CORP LTD
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