Method and device for preparation of alcohols from hydrocarbons

A methanol, porous support technology, used in oxidation reaction preparation, chemical instruments and methods, catalyst activation/preparation, etc.

Pending Publication Date: 2020-09-25
特拉内尔有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no artificial catalyst can truly mimic this fascinating reaction

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  • Method and device for preparation of alcohols from hydrocarbons
  • Method and device for preparation of alcohols from hydrocarbons
  • Method and device for preparation of alcohols from hydrocarbons

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0131] Figure 7 A schematic diagram of a methane to methanol plant unit as one of the embodiments of the present invention is shown. This schematic shows a batch flow reactor where the reaction starts and ends with on-off switching of the electric field. In the experimental setup, the thermionic emission device was placed on a hot plate calibrated with a thermocouple so that the temperature reached 25 °C or 45 °C. The gas phase is prepared as CH in a ratio of 60%:20%:20%, respectively 4 / H 2 O / O 2 . Fill the gas-tight 50 ml syringe 11 with the gas mixture. Load the syringe into a syringe pump and deliver gas at varying rates. The pump used (Harvard Apparatus syringe pump, model PHD 22 / 2000) delivered a maximum flow rate of 3.68 mL / sec, which could potentially be increased several-fold with upgraded systems. The gas in the outlet tube was passed through a condenser and kept on ice to minimize methanol evaporation. A portion of the liquid was taken for NMR analysis.

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Embodiment 2

[0135] Figure 10 Represents a tubular "cylindrical" geometry that differs from the planar geometry of the electrodes of the DMTM device of Example 1. The device is characterized by a helical central anode 15 with a horizontal gas delivery tube 16 . A cathode MP / MIZ or MP / MZ heterostructure 17 with zeolite or zeolite-like material on the inside (indicated by wavy lines) is provided in a tubular configuration around the central anode at a distance of about 2 cm. A gas mixture inlet 18 and a recycle line 19 for unreacted starting materials are provided. The condensed product is recovered at outlet 20 .

[0136] It is generally desirable to employ this geometry to have a more symmetrical distribution of the reactant gas mixture within the device (as opposed to an asymmetrical distribution in a rectangular device). Unexpectedly, however, when the planar and tubular geometries have the same surface area, the latter geometry shows enhanced emission of high-energy electrons. This...

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Abstract

The present invention relates to a method of producing methanol from methane, wherein hot-electrons generated under an external electric field in a process taking place in a multi-layer heterostructure comprising a nanoporous layer drive the conversion from methane to methanol. The structure generates hot electrons by providing spatial enhancement of the electric field, and purges hot holes whichare created when hot electrons depart. This combination enhances heterogeneous catalysis of the conversion reaction.

Description

technical field [0001] The present invention relates to the production of alcohols from hydrocarbons in a scalable manner under ambient conditions using thermionic-driven conversions. More specifically, the present invention relates to methods of generating hot electrons under an external electric field and multilayer heterostructures including nanoporous layers. [0002] The present invention fills a long-standing gap in the energy industry. Background technique [0003] Catalytic conversion of methane "value-added" (i.e., from methane directly to methanol (DMTM) on a large scale) under economically feasible and environmentally friendly conditions has been recognized as one of the key challenges of contemporary catalysis. According to Nobel laureate Sir Derek Barton, this challenge constitutes "the holy grail of chemistry". While methane is an inert compound and cannot be transported because it is a gas, methanol is quite unique in its versatility as a chemical feedstock,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/02C07C29/48B01J37/02B01J29/072B01J35/00B01J29/46C25B3/23C25B9/17
CPCB01J37/0246B01J29/072B01J29/46B01J35/0033C25B3/23C25B9/17C25B11/051C25B11/031C25B11/043C25B11/055C25B11/075
Inventor K·A·H·阿波-哈希马
Owner 特拉内尔有限公司
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