Device and method for recovering paraffin from Fischer-Tropsch paraffin residues

A technology of free dewaxing and paraffin, applied in the field of waste dewaxing slag recovery, can solve the problems of harsh equipment requirements and poor separation effect, and achieve the effect of reducing emissions

Inactive Publication Date: 2016-05-04
BEIJING BIOTECHINA ENVIRONMENT CORP
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the method of treating Fischer-Tropsch wax slag is generally adopted under the condition of high temperature in its liquid state, to filter the paraffin respectively, gravity s

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for recovering paraffin from Fischer-Tropsch paraffin residues
  • Device and method for recovering paraffin from Fischer-Tropsch paraffin residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the present invention, and those of ordinary skill in the art based on the functions, methods, or structural changes made by these implementations Equivalent transformations or substitutions all fall within the protection scope of the present invention.

[0022] ginseng figure 1 as shown, figure 1 It is a structural schematic diagram of a device for recovering paraffin from waste dewaxing slag of the present invention. In the figure, the inlet and outlet: 101 is air, 102 is air after preheating, 103 is wax slag, 104 is natural gas, 105 is cooling water outlet, 106 is Cooling water intake, 107 is nitrogen, 108 is tail gas, and 109 is wax liquid.

[0023] The present embodiment provides a device for reclaiming paraffin from waste dewaxing slag (Fisher-Tropsch synthesis produces par...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of recovery from Fischer-Tropsch paraffin residues and particularly relates to a device and a method for recovering paraffin from the Fischer-Tropsch paraffin residues. The device comprises a pyrolysis furnace, a precipitator, a condensing device and a gas-liquid separator, wherein the pyrolysis furnace is connected with the precipitator which is connected with the condensing device, and the condensing device is connected with the gas-liquid separator which is connected with the pyrolysis furnace; an inner barrel and an outer barrel are arranged in the pyrolysis furnace, a boost screw is arranged in the inner barrel, and a flue is formed between the inner barrel and the outer barrel; the pyrolysis furnace is further provided with a nitrogen inlet and a residue discharge port. The device and the method have the advantages that the purpose of paraffin recovery is achieved through separation of the paraffin from catalyst residues, the effective constituent yield of the paraffin residues is higher than 82%, produced non-condensable gas returns to the hearth of the pyrolysis furnace for combustion, flue gas emission is reduced, and the method is a clean process for recovering the paraffin from the Fischer-Tropsch paraffin residues.

Description

technical field [0001] The invention belongs to the technical field of recovering waste dewaxing slag, and in particular relates to a device and a method for recovering paraffin from waste dewaxing slag. Background technique [0002] Using coal-based or natural gas-based synthesis gas as raw material, Fischer-Tropsch reaction occurs under the action of a catalyst, and liquid fuels and other chemical products mainly composed of paraffins can be synthesized. In order to maintain the reactivity of the Fischer-Tropsch catalyst, the waste catalyst will be regularly removed and replaced. At the same time, in the refining process of the synthetic liquid product heavy wax, the filter aid used will form a filter cake. The waste generated by these two processes The solid wax residue contains 30% to 50% paraffin, and the remaining components are spent catalysts. Usually, the method of treating Fischer-Tropsch wax slag is generally adopted to filter the paraffin separately under the co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C10G73/00
CPCC10G73/00C10G2300/1022
Inventor 李国文木塔里甫吴志刚王彦成赵春强祁涛
Owner BEIJING BIOTECHINA ENVIRONMENT CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap