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Supercritical hydro extraction of kerogen and aqueous extraction of alumina and soda ash with a residue for portland cement production

A technology for kerogen and residues, which is applied in the fields of supercritical water extraction of kerogen and water extraction of alumina and soda ash and residues used for Portland cement preparation, can solve problems such as low oil yield and the like, and achieves The effect of reducing environmental pollution

Inactive Publication Date: 2005-10-26
约翰·S·伦德尔
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the low yield of oil from oil shale, especially "carbonaceous" oil shale

Method used

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  • Supercritical hydro extraction of kerogen and aqueous extraction of alumina and soda ash with a residue for portland cement production
  • Supercritical hydro extraction of kerogen and aqueous extraction of alumina and soda ash with a residue for portland cement production
  • Supercritical hydro extraction of kerogen and aqueous extraction of alumina and soda ash with a residue for portland cement production

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Embodiment Construction

[0037] figure 1 An embodiment of an oil shale processing apparatus of the present invention is shown in FIG. The main product produced is synthetic crude oil suitable for pipeline transportation. The oil shale input 102 is crushed by a pulverizer 104 . Crushed oil shale stream 106 is mixed with recycled solvent and input to dehydrator 108 . Wastewater 110 is removed from the system. A recovered solvent vapor stream 112 is added, concentrated for heat recovery, and output as a slurry stream 114 . Heat exchanger 116 provides a recovered heat stream 118 and outputs an oil product stream 120 . The downstream process receives hot oil product stream 122 and loses the elevated heat to heat recovered stream 118 , leaving cooled oil product 120 . The kerogen converter 124 outputs a slurry 126 . The reactant gas is exhausted in stream 128 . Oil separator 130 outputs an oily solids stream 132 and an oil product stream 122 . Solvent extractor 134 outputs a solids stream 136 , and ...

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Abstract

The present invention discloses a method and a device for extracting a hydrocarbon product, alumina and barilla from oil shale, and the oil shale contains the chemical substances with various contents, all of which are extracted by most of the hydrocarbon solvents under the temperature of approximate 400 DEG C. The oil shale residue is filtered by sodium carbonate aqueous solution under a decreased temperature of 150 DEG C and a corresponding decreased pressure to obtain useful alumina and barilla ingredients. Under a temperature of 100 DEG C, the useful hydrate ingredient of the barilla is deposited from filtering medium along with the useful alumina ingredient settled by CO2. Under a temperature of 65 DEG C, the circulated particulate aluminum trihydrate is selected to produce the alumina. By resolving the circulated acid steam of the alumina, aluminium hydroxide is converted into acidic alumina in order to filter out any silica impurities. Under a temperature of approximate 200 DEG C and a pressure of 250 PSIG, alkaline aluminium sulphate is deposited, and under a temperature of approximate 900 DEG C, the subsequent calcination is carried out. Consequently, the alumina is produced, and sulfur oxide gas is recycled by a sulphuric acid device.

Description

[0001] Related Patent Applications [0002] This application for patent asserts that application number 10 / 247,868, filed September 19, 2002, is entitled "Supercritical Water Extraction of Kerogen and Aqueous Extraction of Alumina and Soda Ash and Residues Used in Portland Cement Preparation." Priority of the U.S. Patent Application for "Apparatus and Method", and its continuation U.S. application, the entire contents of which are hereby incorporated by reference. [0003] This patent application is also filed on January 24, 2000 with application number 09 / 490,254 entitled "Supercritical Water Extraction of Kerogen and Aqueous Extraction of Alumina and Soda Ash and Residues Used in Portland Cement Preparation Continuation-in-Part of U.S. Patent Application for "Apparatus and Method", the entire contents of which are hereby incorporated by reference. technical field [0004] The present invention relates to methods of extracting kerogen bituminous material from oil shale to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G1/06C10G1/04
CPCC10G1/042C10G1/04
Inventor 约翰·S·伦德尔
Owner 约翰·S·伦德尔
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