Unlock instant, AI-driven research and patent intelligence for your innovation.

Processes for upgrading algae oils and products thereof

A technology of oil quality and mixture, applied in the petroleum industry, fat oil/fat production, refined hydrocarbon oil, etc.

Inactive Publication Date: 2014-07-23
SAPPHIRE ENERGY
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This led the inventors to extend their work from oils, triglycerides and fatty acids to algae-derived oils by citing algae oils as high triglyceride oils in a patent application for renewable oils, although in this way they have not actually dealt with algae-derived oils.

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
  • Processes for upgrading algae oils and products thereof
  • Processes for upgrading algae oils and products thereof
  • Processes for upgrading algae oils and products thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0113] The algal oil feedstock was produced from Nannochloropsis algae by hydrothermal treatment and heptane extraction according to the method outlined in the previous section "Hydrothermal Treatment of Biomass and Acidification to Produce Crude Algal Oil". The hydrothermal treatment step (step b in the method listed above) was carried out at 260°C for 0.5 hours. The obtained algal oil feedstock was subjected to various hydroprocessing experiments, including decarboxylation (1SEBR), hydrogenation (2SEBR), decarboxylation followed by hydrogenation (3SEBR) and three catalytic hydrotreatments (4SEBR, 5SEBR and 6SEBR). The algae oil feedstock was also heat treated in hydrogen (no catalyst, 7SEBR). Table 1 summarizes the conditions and reagent pools for these experiments, figure 1 The oil products of these experiments are shown.

[0114] Table 1: Catalyst / Process Conditions

[0115]

[0116] Experimental runs for groups 1-7SEBR were performed in a semi-batch reactor (in the ...

Embodiment 2

[0170] Additional experiments were performed with the same Nannochloropsis-derived algae oil feedstock as in Example 1, but the feedstock was upgraded under different process conditions. Specifically, the effects of increasing reaction temperature, retention time, and hydrogen pressure on algal oil upgrading were investigated. According to the aforementioned procedure of the present invention, elemental analysis (EA) and high temperature GC-MS analysis were performed on the produced algae oil products and samples.

[0171] Table 8 lists the run samples and corresponding experimental conditions. Thus, the run samples of this example included a higher decarboxylation test temperature (375°C) than the decarboxylation run 1SEBR (350°C). Therefore, the results of running 1SEBR and 8SEBR were compared, as shown in Table 8. Run 9SEBR was catalytic hydrotreating at 1000 psig, but the retention time (2 hours) was longer than the catalytic hydrotreating run in Example 1 (1 hour), ther...

Embodiment 3

[0184] Using the same algal oil feedstock derived from Nannochloropsis as in Example 1, additional experiments were performed by catalytic cracking of the algal oil feedstock in a Micro Catalytic Cracking (MAT) system. MAT equipment and testing are well known in petroleum processing R&D and have been designed and developed over the years to be highly consistent with large fluid catalytic cracking (FCC) units.

[0185] The predictive power of the MAT test is quite remarkable considering that only gram-scale feedstock is required, while commercial FCC units can process feedstock in excess of 1 million barrels per day (MBPD). Like commercial FCC units, the MAT test operates at cracking temperatures of about 1000 degrees Fahrenheit, with very short catalyst-feedstock contact times (5-10 seconds), and uses zeolite-based catalysts at atmospheric pressure.

[0186] In the present embodiment, the MAT test is used to compare the FCC process and the

[0187] A reference petroleum feeds...

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

PropertyMeasurementUnit
boiling pointaaaaaaaaaa
specific surface areaaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

Algae oil feeds comprise a wide range of molecular species forming a complex mixture of molecules having varying sizes and therefore varying boiling points, comprise high nitrogen, oxygen, and fatty acid content, but comprise low sulfur, saturated hydrocarbons, and triglycerides. The wide range of molecular species in the algae oil feeds, very unusual compared to conventional refinery feedstocks and vegetable oils, may be upgraded into fuels by conventional refining approaches such as thermal and / or catalytic-hydroprocessing. Hydrotreating at high pressure over large-pore catalyst, and optionally followed by FCC cracking, has shown a beneficial product slate including coke yield. Thermal treatment prior to hydrotreating may improve hydrotreating feedstock quality. Unusual behavior of the algae oils in thermal treatment and / or hydroprocessing, including cracking to lower boiling range compounds, may provide a high quality product slate with the flexibility to adjust the product slate due to the cracking behavior exhibited by these algae oils.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application No. 61 / 553,128, filed October 28, 2011, which is hereby incorporated by reference in its entirety for all purposes. Background technique [0003] Many renewable oils, or "bio-oils", consist almost entirely of triglycerides and / or free fatty acids derived from triglycerides. Examples of vegetable oils are rapeseed oil and soybean oil, which can be used as food products, and linseed oil and jatropha oil, which are non-food oils. Even tallow is composed almost entirely of triglycerides. There is great interest in using these oils as fuel, and a desire to reduce the country's and the world's dependence on oil is given. Processes such as UOP's Ecofining have been developed commercially. Oils from all plants and algae, including various species, and processes to obtain their products have emerged. The composition of these products consists mainly or e...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/00C10G3/00C11B1/10
CPCC11B1/02C11B1/04C11B1/10C11C3/00C11C3/123C11C3/126C10G3/42C10G3/50C10G11/18C10G2300/1014Y02P30/20C07C1/2078C07C5/02
Inventor D·萨杰克维斯基S·鲁西斯R·克兰福德
Owner SAPPHIRE ENERGY