On 1/7, the Alky started to only process FCCU BB and no longer process Coker BB. Alkylation chemistry, neither likes contaminants nor diluents. Contaminants are direct acid consumers. The more contaminants in the feed, the more often the unit will be at an acid constraint. Diluents do not react in alkylation chemistry, but they take up space and decrease the effective area for isobutane and olefin to contact. With less contact, side reactions like polymerization are more likely to occur; polymerization reactions are a direct acid consumer. Comparing the FCCU and Coker BB, Coker BB contains far more contaminants and diluents than FCCU BB (see Table 2, pg.4). By lowering the amount of contaminants and diluents, acid consumption reduced 0.2 …show more content…
By leaving the acid and olefin in contact with no isobutane, polymerization occurred which increased acid consumption. After the shutdown, processing off-spec material also contributed to an increased acid consumption (see Figure 2, pg.4). Because of long residence times between the contactors and settlers, it will take time for the acid consumption to reduce to pre-shutdown levels. Acid spend strength has been higher than required for this period (see Figure 4, pg.5). Process Support recommends lowering the amount of fresh acid consumed to get closer to the spend target. Noticeably, there is very little reduction in acid strength from A train to B train. This indicates that there is not much additional reaction happening between the two. Process Support will contact Stratco to determine what could be causing this phenomenon. In general, the unit consumes more acid than required (91 target spend strength vs. 89 technical target spend strength) because controlling the series acid flow is a manual operation (see Figure 4, pg.5). During the turnaround, instrumentation will be installed to better control acid spend strength to the lower target (see Figure 5,
Sampling acetic acid in wet and dry chips shall be conducted once each month and when the volatile organic compounds (VOC) grades of EVOH are changed for Lines 1100, 1200, 1300, and Line 1400. The sample period shall be for two consecutive days to reflect two daily average acetic acid emissions. Records will be made available to the Texas Commission on Environmental Quality (TCEQ) Executive Director upon request. 6. The permit holder shall maintain records of ethylene vinyl alcohol annual production rate for each line and update them on a monthly basis.
#10. J.R. Richard Suffers Stroke On Field Houston Astros pitching ace J. R. Richard collapsed during a rehab stint, at the Astrodome, on July 30, 1980. Thje Astros put Richard on the DL when he felt numbness and his arm “go dead” during a July 14 game against the Braves. For two weeks he felt lingering pain and tightness. He complained to the training staff and sought medical advice, but Richard said that his concerns fell on deaf ears.
A buffer solution minimises change in PH of a solution when small amounts of acid or alkali are added to the solution, with an an acidic buffer solutions maintaining a PH<7 (ChemGuide, 2017). It works through an equilibrium, so if the concentration of H+ or OH- are changed, equilibrium will shift to oppose this change and return solution PH to original value. The Alka Seltzer mixture contains an excess amount of the bicarbonate ion which is vital for the buffering action taking place within the solution. This is because the excess bicarbonate ion present, allows the solution to act as a buffer as it’s able to react with small quantities of acids and bases added to the solution, therefore resisting a change in PH by neutralising them.
Multiple factors could have affected each one of the state’s and county’s decisions on whether they succeeded from the union or stayed loyal. The main historical factors under consideration were the number of slaves per white man, the agricultural wealth per white man, the availability of transportation by rail or water, and the percent slave population in respect to total population. While reviewing the data, I found that throughout Georgia and the counties Bibb and Heard, there was a large presence of slaves per white man as well as a large overall population of slaves in each of these regions. There was about three slaves per white man and around a 40% overall slave population. This evidence compelled me to think that these regions would
While the absolute value of slope of the graph for the solution containing only 0.5 mL mitochondrial suspension was 4 x 10-4, the slope of the graph for the solution containing 0.5 mL of mitochondrial suspension, 0.5 mL of 100 mM succinate, and 0.5 mL of 100 mM malonate was 7 x 10-4. Although this change is not large, it does demonstrate that the addition of TCA cycle intermediates has an impact on reaction rate. The decrease in the rate of reaction of the sample containing 0.5 mL of mitochondrial suspension, 0.5 mL of 100 mM succinate, and 0.5 mL of 100 mM malonate as compared to the sample with only 0.5 mL of mitochondrial suspension and 0.5 mL of 100 mM succinate shows that the addition of malonate inhibits the reduction of
June 16, 2010 is the year 29 year old LaNell.l Barsock was killed in Palmdale by Larene Eleanor Austin, 33 in Lancaster, CA, after a short-term romantic relationship with the victim LaNell Barsock. The two had met on craigslist but later on Barsock ended the relationship to further things with her boyfriend. Afterwards Eleanor Austin shot Barsock in the head on June 16, 2010, she foraged a letter supposedly from Barsok breaking up with her boyfriend. Austin then presented it to police in which it was used as evidence presented in the trial. Officials cleared Barsocks boyfriend and Austin fled to Belize where she was arrested January 2012 in the Central American country of Belize after she was seen on Americas most wanted.
August 21, 1991 little after 2 pm, when an explosion occurred on Coode Island, a 600,000 litre chemical storage tank that was filled with acrylonitrile caught on fire and exploded. The fire burned extreme hazardous chemicals including, methyl ethyl ketone, acrylonitrile, and benzene forming clouds of toxic black smoke more than 18 miles from the site, prompting the closure of roads and evacuation of Schools, nearby buildings and ships. All residents were told to stay inside with doors and windows closed to avoid smoke from entering the building. Tank number 80that was containing acrylonitrile (vinyl cyanide) monomer went into the air which discharged its contents into the tank bund.
Notes for Barbs meeting: 1. Barb needs to stay in her apartment. There is no reason to think otherwise. 2.
(1) Title: BARD v. JAHNKE (2006). (2) Facts: Jahnke and is his family are the owners of a fairy farm where the incident occurred. One of the animals, a bull, names Fred, has been permitted by Jahnke to roam around freely in the low cow district, in order to impregnate other female cows. Fred, just like Jahnke’s other bulls, has never caused or threatened to harm another being, hence has never been tied up. John Timer was asked by Jahnke’s son to do some repair work in the low cow district, who then asked Larry Bard to assist him.
The purpose of this experiment is to perform a two step reductive amination using o-vanillin with p-toluidine to synthesize an imine derivative. In this experiment, 0.386 g of o-vanillin and 0.276 g of p-toluidine were mixed into an Erlenmeyer flask. The o-vanillin turned from a green powder to orange layer as it mixed with p-toludine, which was originally a white solid. Ethanol was added as a solvent for this reaction. Sodium borohydride was added in slow portion as the reducing agent, dissolving the precipitate into a yellowish lime solution.
Firstly, because the NaHCO3 compound was not stored in a sealed container, therefore dust particles could have changed the results, and making the product impure. Also, there are uncertainties associated with the instruments used in this experiment. This, if the products were measured slightly more than should be, this could have affected the concentrations of the solutions, and therefore causing a larger
1.0 Introduction and Identification of Problems BabbaCo, Inc. is an American based company founded by a mother of three and serial entrepreneur Jessica Nam Kim. It started off by offering infant-related products and managed to grow the business to a few hundred thousand dollars in revenue in less than a year’s time. Soon after, the young startup encountered the problem of low repeat sales. Thus, the entrepreneur started to rethink BabbaCo’s business model. With the revamp of the product offerings, it changed to a subscription-based business model with the introduction of Babba Box.
Bottling Company Case Study As a manager at a major bottling company, customers have complained that the bottles of the brand of soda produced in the company contain less than the advertised sixteen (16) ounces of product. There is need to solve the problem at hand and has to be investigated. Employees are instructed to pull thirty (30) bottles off the line at random from all the shifts at the bottling plant and measure the amount of soda there is in each bottle.
In the carbonated soft drinks industry, Coke Cola and Pepsi Co are the biggest players in the market for aerated beverages. Both the companies have been competing strongly against each other for decades. The market is dominated by these two industry leaders with a total market share of 72%; Coke’s market share is 42% and Pepsi’s 30%. This is known as an oligopoly market; where there are few large firms competing with each other in the industry. Since both the company’s market share so large, the market is very close to a duopoly (other players having a very small impact on the market).
Discuss, using personal experience, available course material and supporting research literature. For almost two years, I have been working part time at a factory, which produces paint for one of the largest paint sellers in the world, Glidden. The quality of these paint factories are greatly affected due to the several chemicals needed to produce these large amounts of paint barrels. My job was to fill up paint pails and then seal these pails and load them onto trucks that would come every two hours.