An overview of the process is shown in Fig.
Schematic overview of the 1G + 2G process and alternative configurations
Schematic overview of the 1G + 2G process and alternative configurations
Example 3
Astragalus membranaceus was crushed and sieved through 8 mesh to obtain Astragalus membranaceus powder. The Astragalus membranaceus powder was mixed evenly with distilled water with a weight ratio of 2.5:1, sterilized in a steam sterilization pot at 90° C. for 60 min, and then cooled to room temperature to obtain a solid medium of Astragalus membranaceus. Paecilomyces cicadae was evenly inoculated into the solid medium of Astragalus membranaceus with an inoculation amount of 20 wt % of Astragalus membranaceus. The inoculated medium was cultured at a constant temperature of 26° C. and a constant relative humidity of 80% for 24 days to obtain fermentation fungal substance of Astragalus membranaceus/Paecilomyces cicadae E (hereinafter referred to as “fungal substance E”).
Example 5
4-Tert-octylphenol (255 g) was dissolved in xylene (255 g) in a three-neck flask equipped with a dimroth coil condenser and a dropping funnel at 70° C. followed by the addition of BF3*(OEt2) (0.921 mL). Divinylbenzene (195 g, 62% purity: divinylbenzene:ethylvinylbenzene=62:38) was added dropwise via the dropping funnel over a period of 14 minutes to the reaction mixture. After the addition the solution was stirred for 2 hours at a reaction temperature of 90° C. The polymerization was quenched by the addition of chalk. Filtration of the crude product and purification via steam distillation at 230° C. yielded the resin as colorless solid. The results of characterization of the tackifier are presented in the table below.
Example 2
BC non-woven was produced by the method of the present invention. In particular, BC non-woven was sterilized with e-beam or by exposure to steam after removal from the culture vessel and separation from the BC that remained in the culture vessel. The BC network structure was investigated with scanning electron microscopy. It was found that the network structure was neither disturbed by sterilization with steam nor by e-beam sterilization.
Example 1
An Arab light crude oil with an API gravity of 33.0 and a sulfur content of 1.6 wt. % was fractionated in a distillation column to form a light stream and a heavy stream. Properties of the feed crude oil stream and the resulting fractions (based on their wt. % composition in the crude oil) are given in Table 1 below.
The same Arab light crude oil used in Example 3 was directly cracked in the same cracking reactor and under the same conditions as was used in Example 3.
As can be seen in Table 4, the yield of total light olefins from the inventive EX-3 is significantly higher than the yield of light olefins in the comparative CE-1. Additionally, EX-3 shows significantly lower coke formation than the comparative CE-1.
Example 2
The heavy stream from Example 1 was hydrotreated in a three-stage hydrotreater. The reaction conditions were: a weighted average bed temperature of 400° C., a pressure of 150 bar, a liquid hourly space velocity (LHSV) of 0.5 h−1, an H2/oil ratio 1200:1 (v/v), an oil flowrate of 300 ml/h, and an H2 flowrate of 360 L/h.
The first stage of the hydrotreater used a KFR-22 catalyst from Albemarle Co. to accomplish hydro-demetallization (HDM). The second stage of the hydrotreater used a KFR-33 catalyst from Albemarle Co. to accomplish hydro-desulfurization (HDS). The third stage of the hydrotreater used a KFR-70 catalyst from Albemarle Co. to accomplish hydro-dearomatization (HDA). The first, second, and third stages were discrete beds placed atop one another in a single reaction zone. The heavy stream flowed downward to the first stage, then to the second stage, and then to the third stage. Properties of this hydrotreated heavy stream are shown in Table 2 below.
Example 3
A catalyst with the composition shown in Table 3 below as used in all of the reactions.
An Advanced Cracking Evaluation (ACE) unit was used to simulate a down-flow FCC reaction zone with multiple inlet points. The ACE unit emulates commercial FCC process.
Prior to each experiment, the catalyst is loaded into the reactor and heated to the desired reaction temperature. N2 gas is fed through the feed injector from the bottom to keep catalyst particles fluidized. Once the catalyst bed temperature reaches within ±2° C. of the reaction temperature, the reaction can begin. Feed is then injected for a predetermined time (time-on-stream (TOS)). The desired catalyst-to-feed ratio is obtained by controlling the feed pump. The gaseous product is routed to the liquid receiver, where C5+ hydrocarbons are condensed and the remaining gases are routed to the gas receiver. After catalyst stripping is over, the reactor is heated to 700° C., and nitrogen was replaced with air to regenerate the catalyst. During regeneration, the released gas is routed to a CO2 analyzer. Coke yield is calculated from the flue gas flow rate and CO2 concentration. The above process was repeated for each of Examples 3(A) and 3(B).
The light stream from Example 1 was combined with the hydrotreated heavy stream from Example 2 to form a combined feed stream. The combined feed stream was fed to the ACE unit. A time-on-stream (TOS) of 75 seconds and a temperature of 675° C. was used. Fresh catalyst was steamed deactivated at 810° C. for 6 hours to resemble the equilibrium catalyst in the actual process. The steam deactivated catalyst was used in this reaction. It should be understood that TOS is directly proportional to residence time.
Example 6
Fresh krill was pumped from the harvesting trawl directly into an indirect steam cooker, and heated to 90 C. Water and a small amount of oil were removed in a screw press before ethoxyquin (antioxidant) was added and the denatured meal was dried under vacuum at a temperature not exceeding 80 C. After 19 months storage in room temperature, a sample of the denatured meal was extracted in two steps with supercritical CO2 in laboratory scale at a flow rate of 2 ml/min at 100 C and a pressure of 7500 psi. In the second step 20% ethanol was added to the CO2. The two fractions collected were combined and analyzed by HPLC using ELS detection. The phosphatidylcholine was measured to 42.22% whereas the partly decomposed phosphatidylcholine was 1.68%. This data strongly contrasts the data obtained by analysis of a krill oil sample in the marketplace that showed a content of 9.05% of phosphatidylcholine and 4.60% of partly decomposed phosphatidylcholine.