Process for separating particles containing alkali metal salts from liquid hydrocarbons

A technology for liquid hydrocarbons and alkali metals, which is applied in refining with metals, refining with non-metals, and treating hydrocarbon oils, etc. It can solve problems such as no conventional commercial use and difficult industrial scale

Active Publication Date: 2019-06-14
ENLIGHTEN INNOVATIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, removing these by-products from processed feedstock can be challenging
Suspensions and / or emulsions that may form by-products often cannot be completely removed using standard separation techniques and are difficult to do efficiently on an industrial scale
In fact, due in part to this problem, there is no routine commercial use of large-scale desulfurization using sodium metal or other alkali metals

Method used

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  • Process for separating particles containing alkali metal salts from liquid hydrocarbons
  • Process for separating particles containing alkali metal salts from liquid hydrocarbons
  • Process for separating particles containing alkali metal salts from liquid hydrocarbons

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0055] Example 1 - Desulfurization with sulfur followed by sulfur treatment and solids separation

[0056] Use basically as figure 1 The continuous system shown was to treat a vacuum residue oil feedstock with sodium metal in a pilot plant under the following conditions to obtain a mixture of treated oil and fine particles comprising sodium sulfide.

[0057] Oil feed rate: 66kg / h

[0058] Sodium feed rate: 2.1kg / h

[0059] Hydrogen feed rate: 250g / h

[0060] Reaction temperature: 352°C

[0061] Response pressure: 1425psi

[0062] Equal parts of the mixture of oil and fines were mixed with elemental sulfur under the following batch conditions (Table 1). Measure the amount of sulfur remaining in the oil.

[0063] Table 1

[0064]

[0065]

example 2

[0066] Example 2 - Continuous desulfurization with sodium followed by continuous sulfur treatment and solids separation

[0067] Use basically as figure 1 The continuous system shown was treated with sodium metal in a pilot plant in a pilot plant under the following four test conditions to obtain a mixture of treated oil and fine particles containing sodium sulfide.

[0068] Table 2

[0069]

[0070] Tests 2A-2D provided four mixtures of sodium-reacted oil feedstock and particles containing sodium sulfide, according to figure 1 The conditions for using the present separation method in a pilot plant were processed in a continuous manner and for trials 3A to 3D are shown in Table 3 below. Measures the amount of sulfur in sweetened liquid hydrocarbons.

[0071] table 3

[0072] condition

example 3

[0073] Example 3 - Removal of Residual Sodium from Desulfurized Liquid Hydrocarbons.

[0074] After desulfurization and separation of solids according to the procedure of Example 2, according to figure 1 The process for treating desulfurized liquid hydrocarbons with a mixture of acetic acid and sodium acetate and carried out under the conditions shown in Table 4 below.

[0075] Table 4

[0076]

[0077]

[0078] *Continuous condition except as indicated

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Abstract

The present technology provides a process that includes the steps of: heating a first mixture of elemental sulfur and particles comprising an alkali metal sulfide in a liquid hydrocarbon to a temperature of at least 150 DEG C, to provide a sulfur-treated mixture comprising agglomerated particles; and separating the agglomerated particles from the sulfur-treated mixture to provide a desulfurized liquid hydrocarbon and separated solids. This process may be used as part of a suite of processes for desulfurizing liquid hydrocarbons contaminated with organosulfur compounds and other heteroatom-based contaminants. The present technology further provides processes for converting carbon-rich solids (e.g., petroleum coke) into fuels.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Application No. 62 / 404119, filed October 4, 2016, U.S. Provisional Application No. 62 / 513871, filed June 1, 2017, and U.S. Provisional Application No. 15 / 446299, the contents of which are incorporated herein by reference in their entirety. field of invention [0003] This technology relates to methods for removing particles containing alkali metal salts, such as alkali metal sulfides, from liquid hydrocarbons. It also relates to methods of converting carbon-rich solids into fuels. Background technique [0004] Liquid hydrocarbons, including many oil feedstocks, often contain sulfur in the form of difficult-to-remove organosulfur compounds as well as metals and other heteroatom-containing compounds that hinder the use of the hydrocarbons. Sulfur can cause air pollution and can poison catalysts used in petroleum processing or designed to remove hydrocarbons and nitrogen oxides...

Claims

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Application Information

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IPC IPC(8): C10G29/02C10G29/04C10G53/02
CPCC10G29/02C10G29/04C10G53/02C10G2300/202C10G2300/205
InventorJ·H·戈登M·泽纳提斯M·马科夫斯基J·基尔帕克
OwnerENLIGHTEN INNOVATIONS INC