The document discusses fractional distillation, which is used to separate crude oil into its components by boiling it and collecting the fractions based on differing boiling points. Crude oil consists mainly of alkanes and is separated via fractional distillation into useful products like petrol, kerosene, diesel, and lubricating oils. Industrial cracking is then used to break larger hydrocarbon chains in less valuable fractions into shorter, more valuable chains to increase yields. Thermal cracking uses high heat and pressure, while catalytic cracking uses lower temperatures but requires a zeolite catalyst.
A multiple-effect evaporator, as defined in chemical engineering, is an equipment for efficiently using the heat from steam to evaporate water.
Steam is mostly used as heating medium in Multiple effect evaporator.
Multiple Effect Evaporation remains one of the popular method for the concentration of aqueous solutions.
This Presentation gives an overview about the multiple effect evaporators. The intention is also focused on designing principles of Single and Multiple Effect Evaporators
I hope You all like it. I hope It is very beneficial for you all. I really thought that you all get enough knowledge from this presentation. This presentation is about materials and their classifications. After you read this presentation you knowledge is not as before.
Presentation on fractional distillation. Introduction to distillation, fractional distillation, its principle, working, applications, advantages and disadvantages.
A multiple-effect evaporator, as defined in chemical engineering, is an equipment for efficiently using the heat from steam to evaporate water.
Steam is mostly used as heating medium in Multiple effect evaporator.
Multiple Effect Evaporation remains one of the popular method for the concentration of aqueous solutions.
This Presentation gives an overview about the multiple effect evaporators. The intention is also focused on designing principles of Single and Multiple Effect Evaporators
I hope You all like it. I hope It is very beneficial for you all. I really thought that you all get enough knowledge from this presentation. This presentation is about materials and their classifications. After you read this presentation you knowledge is not as before.
Presentation on fractional distillation. Introduction to distillation, fractional distillation, its principle, working, applications, advantages and disadvantages.
This presentation is regarding alternate fuels and their future scope, for I.C. Engine and with that we try to achieve as low as possible gas emission, this presentation give brief introductory idea about fuels and their properties.
How to work oil refineries
A refinery is a factory. A refinery takes a raw material (crude oil) and transforms it into petrol and hundreds of other useful products. A typical large refinery costs billions of pounds to build and millions more to run and upgrade. It runs around the clock 365 days a year, employs hundreds of people and occupies as much land as several hundred football pitches.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
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It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
2. Crude oil
• I will be using crude oil as a recurring example during
my PowerPoint (it represent the mixture).
• It is an exceptionally valuable resource that is made
up mostly of alkanes.
• Crude oil is not renewable as it takes years to form,
this makes it ever more precious.
• It is very impure, but oil is more efficient when it is
pure.
• As there is a limited amount of oil, we need to
minimise the amount of waste. A mechanism used to
minimise waste is fractional distillation. The process
will be repeated to furthermore to decrease the
amount of waste.
3. Fractional distillation
• Fractional distillation is
the breaking down of a
mixture into its
component parts.
• This is done by boiling
the mixture and
separating the products
by their varying boiling
points.
4. Method summary
• The mixture is separated by boiling and
collecting each substance as it boils.
• Each substance is called a fraction, this is a
mixture of hydrocarbons of similar chain
length. As they are of similar chain length they
have similar properties and therefore boil at a
similar time.
5. Method stages
• The crude oil is heated in a furnace.
• A mixture of both liquid and vapour rise, and pass into a
tower that is cooler at the top than the bottom.
• The vapours pass up this tower in which there are trays
stacked at different levels, the trays contain bubble caps to
trap the vapour.
• As the vapour rises it gets cooler, once sufficiently cool the
vapour will condense into liquid and will therefore be
collected in the tray below.
• The shorter chained hydrocarbons condense in the trays
nearer to the top of the tower and vice versa. This occurs as
they have lower boiling points, and are therefore liquids in
lower temperatures.
6. Products
Name Approx boiling temperature (C) Uses
Petrol 40 Vehicle Fuel
Naptha 180 Industrial cleaners and solvents, petrol
industry
Kerosene (paraffin) 200 Used as a gas for some heaters
Diesel Oil 250 Vehicles e.g. lorries (produces less CO2
than petrol)
Lubricating Oil 280 Reduce friction between multiple parts
Fuel Oil 310 The fuel used in ships and power stations
Greases and Wax 340 Used to make things like candles
Bitumen 367 Used for road tar and roofing
7. Method flaws
• Small collections/pockets of certain length hydrocarbons may get trapped
in trays that don’t corresponded with there boiling point.
• Also some substances have overlapping boiling points (as shown in the
table) and will therefore remain mixed.
• Pollutants are created, some pollutants may induce taxes or disposal
expenses.
• There are lots of products that are less valuable that are produced.
Product Gases Petrol Naptha Kersosen
e
Gas oil Fuel oil
and wax
Approxi
mate
boiling
point/ K
310 310-450 400-490 430-523 590-620 Above
620
Chain
length
1-5 5-10 8-12 11-16 16-24 25+
Percenta
ge
Present
2 8 10 14 21 45
8. Industrial cracking
• Individual fractions all have different values, the general trend
is that the longer the fractions are the less valuable they are.
The naphtha fraction from the fractional distillation of crude
oil is in huge demand, this makes it valuable as buyers will be
competing for it. This fraction is desired for petrol and by the
chemical industry.
• Industrial cracking is used to crack larger chains into more
valuable shorter chains.
• An additional benefit of cracking is that some alkenes are
produced, alkenes are more reactive than alkanes and
therefore have some desirable uses.
• There are two sub-categories of industrial cracking. Thermal
cracking and Catalytic cracking
9. Thermal cracking
• This involves heating alkanes to a high temperature (700-1200K),and putting them
under high pressure, up to 7000kPa.
• Such high amounts of energy are required to break carbon-carbon bonds. These
bonds break in a way that one electron from the pair in the covalent bond goes to
the end carbon atom in each chain, one of chains pulls hydrogen off of the other,
consequently one of the chains needs to be double bonded to fulfil the necessary
amount of bonds, this is how the alkenes are formed.
H H H
H
R - C - C - C - C
- R Thermal
H H H H
H H
. Cracking C C
H
- - R .
R - - C C
H H
H
H H
C C
H
H
H
R
H
H
R - - - H
C C + =
H H
Free radicals-electrons=
dot
10. Catalytic cracking
• Catalytic cracking is very similar to thermal cracking, but less
energy is used (lower temperature and pressure),
temperature approx. 720K.
• As there is less energy used a catalyst is required to make the
reaction successful. The catalyst used is a Zeolite catalyst.
Zeolites have a honeycomb structure with an enormous
surface area, because of these properties it will have
particularly regular collisions.
• The products of catalytic converting are mostly branched
alkanes, such as cyclokanes and aromatic compounds.