User Account

All Pages

help please!, Chemistry

Assignment Help:
Methane (CH4), or natural gas, is commonly used all over the world as a source of energy and fuel. Many homes in the United States combust methane to generate heat for hot water heaters, central air heaters, and is used extensively in gas powered stoves and ovens. Currently methane is mass-produced in a variety of different ways, many of which are not sustainable or environmentally friendly. Many people (see www.builditsolar.com for additional reading if you are interested) have started producing their own methane in a variety of different ways. Even though most of these methods are not very efficient, they can be somewhat sustainable if reclaimed or waste materials are used from local sources. One way to “home-brew” methane in a decently sustainable way is to collect waste vegetable oil from various local restaurants and “pyrolyze” it with high heat (typically ~700 K) in the presence of oxygen. Pyrolysis is a very similar chemical reaction to combustion; however, it differs in the types of products it makes.



Corn oil, a commonly used vegetable oil at fast-food restaurants, is composed of approximately 65% by mass linoleic acid (HC18H31O2) and 35% by mass oleic acid (HC18H33O2). In reality there are many other components of corn oil, but these are the main ingredients. The un-balanced reactions below show the pyrolysis of linoleic and oleic acids, respectively, in the presence of oxygen.



HC18H31O2+ O2(g) àCH4(g) + CO2(g) + H2O(g) + H2(g)



HC18H33O2 + O2(g) àCH4(g) + CO2(g) + H2O(g) + H2(g)



In the pyrolysis of re-claimed, or waste corn oil, both reactions are equally important in the production of methane. Note, many other by-products are also generated in these reactions; however, we can ignore them in this exercise.



In the 2011-2012 academic year, Dr. Harmon used approximately 515 kg of methane (that’s a real “ish” number! I got it from my PG&E power bill) in his home for heating, hot water, and stove/oven use. How many 75-gallon barrels of waste corn oil should Dr. Harmon collect to produce his own methane for 1 entire year assuming he uses the exact same amount of methane as in the 2011-2012 academic year? The density of oleic and linoleic acids are very similar, you may assume both are 0.90 g/cm3. Additionally, you may assume the percent yield of methane production from corn oil pyrolysis is 100% (in really it is much smaller).



HINT: To make this problem easier, you may assume 65% of the methane produced comes from linoleic acid and 35% of the methane produced comes from oleic acid.

Related Discussions:- help please!

#title. castner kellner process, #quest what is castner kellner procession....

#quest what is castner kellner procession..

Cellulose - biomolecules, Cellulose - Biomolecules Cellulose is found i...

Cellulose - Biomolecules Cellulose is found in all plants and thus is the most abundant of all carbohydrates. It is the substance required to form cell walls and another struct

Magnetic separation, give a brief explaination of magnetic separation is...

give a brief explaination of magnetic separation is. ?

Mole concepts, : As previously stated, the concentration of NaCl, KCl and ...

: As previously stated, the concentration of NaCl, KCl and Phosphate in working strength 1 x PBS is 0.137M NaCl, 0.012M Phosphate, 0.027M KCl, pH 7.4 How do they compare to the

Why covalent compounds are insoluble in water, Why was covalent compounds a...

Why was covalent compounds are insoluble in water and ionic compounds soluble in water? Ans) When ionic bonds form, one atom becomes positively charged, while the other becomes ne

Ionic bonds, ionic bonds are usually formed by combination of elements with...

ionic bonds are usually formed by combination of elements with which type of ionisation potential or electron affinity

Structure of atom, energy of electron in hydrogen atom

energy of electron in hydrogen atom

Solvent extraction using metal chelarors, The following information is avai...

The following information is available for the extraction of Cu2+ into CCl4 with dithizone: KD,c = 7 ´ 104; b = 5 ´ 1022; Ka,HL = 3 ´ 10–5; KD,HL = 1.1 ´ 104; n = 2. What is the ex

Total number of unpaired electrons in an atom, Total number of unpaired ele...

Total number of unpaired electrons in an atom of atomic number 29 is: (1) 1        (2) 3        (3) 4        (4) 2 Ans: 1

Soda lime glass and safety glasses, Q.   Write an account of soda lime glas...

Q.   Write an account of soda lime glass and safety glasses. Ans. Soda-Lime Glass or soft glass: It is the ordinary glass in which Na 2 O is added to the melt to oxide on hea

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd