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Production of aromatics-rich higher hydrocarbons from solid biomass

A technology of solid biomass and biomass, applied in the field of conversion of biomass to hydrocarbons

Inactive Publication Date: 2019-03-15
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, the challenge is to minimize the generation of waste products that may need to be treated prior to disposal and / or deactivation by poison catalysts

Method used

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  • Production of aromatics-rich higher hydrocarbons from solid biomass
  • Production of aromatics-rich higher hydrocarbons from solid biomass
  • Production of aromatics-rich higher hydrocarbons from solid biomass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3、5-6

[0100] 100% zeolite extrudates were prepared according to the general procedure described in US 5558851, US 6261545 and US 6632415, where the reaction mixture contained only enough water to allow extrusion. Silica ( 233 or ) with sodium aluminate, sodium hydroxide (5N), water and optionally tetrapropylammonium bromide and seed crystals (for example, ZSM-5 Zeolyst CBV 3024E from Zeolyst International, added at 3% w relative to dry ingredients) Combine in a heated double-arm mixer. The molar composition ranges of the mixtures used in these formulations are as follows.

[0101] SiO 2 / Al 2 o 3 =23-38

[0102] TPA+ / SiO2 2 =0–0.02

[0103] OH- / SiO 2 =0.095-0.225

[0104] Na+ / SiO 2 =0.095-0.225

[0105] h 2 O / SiO 2 =4.8-8.2

[0106] Continue heating and mixing until the mixture is dry to extrudable. The LOI (volatiles measured at 550°C) of the mixture before extrusion ranged from 44-60%. The mixture was then extruded through a 1 / 16 inch die using a Bonnot extruder...

Embodiment A-

[0111] Example A- F: condensation

[0112]The model feed was prepared from water, 2-propanol, THF, acetone, acetic acid, 1,3 propanediol in a weight ratio of 70:15:7:4:3:1. The feed was continuously passed through the catalyst bed with the catalysts of Table 2 as described below, with frequent regeneration by coke combustion. All reactions were performed at a temperature of 375°C, a nitrogen pressure of 100 psig, and a flow rate of 1 WHSV based on the total feed to a 1 / 2 inch by 10 inch reactor bed operated downflow. Sampling reaction twice a day, coke burning 1-2 times / week. The reaction is stopped when the catalyst stops producing significant fuel (organic phase of the product leaving the reaction bed) or the fuel quality is low (low aromatics, high olefin content, etc.). The product contains an organic phase and an aqueous phase (total product is a combination of organic and aqueous phases).

[0113] The catalysts of Examples A-F are provided as follows:

[0114] Comp...

Embodiment 1

[0116] Catalyst for Test C - Example 6

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Abstract

A process for the production of an aromatics-rich hydrocarbons useful as gasoline component from solid biomass is provided. The process provides for longer condensation catalyst life by contacting thestable oxygenated hydrocarbon intermediate produced from digestion and hydrodoxygenation of the solid biomass to a binder-free shaped ZSM-5 catalyst.

Description

[0001] This application claims the benefit of pending US Provisional Application 62 / 367,761, filed July 28, 2016. technical field [0002] The present invention relates to the conversion of biomass to hydrocarbons. More specifically, the present invention relates to the improved production of higher hydrocarbons from solid biomass for use as liquid biofuels. Background technique [0003] A great deal of attention has been focused on developing new technologies for providing energy from non-fossil fuel sources. Biomass is a resource that shows promise as an alternative to fossil fuels. Biomass is also renewable relative to fossil fuels. [0004] Biomass can be used as a source of renewable fuel. One type of biomass is plant biomass. Plant biomass is the world's richest source of carbohydrates due to the lignocellulosic material that makes up the cell walls in higher plants. The plant cell wall is divided into two parts, the primary cell wall and the secondary cell wall. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00C10G1/06C10G1/08
CPCC10G1/065C10G1/083C10G2300/1014C10G3/49Y02P30/20B01J29/40C07C1/24G01N2030/025
Inventor K·A·约翰逊R·M·科瓦列斯基
Owner SHELL INT RES MAATSCHAPPIJ BV