Environmental impacts of oil sands Energy Education

The environmental impact of the oil sands is an issue that has been extremely divisive As with the extraction and use of any fossil fuel negative environmental effects arise as a result of the extraction upgrading and processing of bitumen from the oil sands Although some steps are being taken to reduce the severity of these impacts such as reclamation there are still associated

Squeezing Oil From Sand HowStuffWorks

Conditioning starts the process of separating sand and bitumen and breaks apart any large pieces of oil sands The oil sand is mixed with warm water called a slurry and transported by pipeline to an extraction facility Here the slurry is put through a separation process where sand sinks to the bottom and impure bitumen froth rises to the

Extraction Technologies for Natural Bitumen and Heavy Oil

UNESCO – EOLSS SAMPLE CHAPTERS COAL OIL SHALE NATURAL BITUMEN HEAVY OIL AND PEAT – Vol II Extraction Technologies for Natural Bitumen and Heavy Oil James G Speight ©Encyclopedia of Life Support Systems EOLSS hand the API gravity of heavy oil is on the order of 10 to 20o The viscosity of heavy

Oil sands Wikipedia

bitumen flotation oil sands bitumen extraction O il sands are a lso kn own a s tar sands and bitumin ous s ands They are unco nsolida ted san d deposi ts that are im pregna ted with h igh

Environmental consequences of oil production from oil sands

Dec 16 2016 · The total water footprint of bitumen extraction and processing from oil sands deposits in Alberta differed greatly depending on the extraction method We found that 2 8 L of water were required to obtain a liter of bitumen using in situ drilling Figure 3 Table 5 while surface mining required 28 5 L of water per liter of bitumen Figure 4

Extraction of Bitumen from oil sands YouTube

May 16 2014 · bitumen extraction test calculation bituminous macadam mix design percentage test calculation 2018 Duration 10 19 techgoyal construction guru Recommended for you

The Extraction of Heavy Oil from Trinidad Tar Sands Using

D R McGaw et al The Extraction of Heavy Oil from Trinidad Tar Sands Using Supercritical Carbon Dioxide 46 Soxhlet extraction using toluene gave a mean total bitumen extraction of 14 7 3 samples This is consistent with the results on the same deposit as

White Paper Accelerated Solvent Extraction for Bitumen

SDSE as the industry standard for bitumen extraction from oil sands Bitumen is a sticky black and highly viscous liquid or semi solid form of petroleum These two extraction techniques were compared for the extraction of bitumen solids and water from oil sands In each instance the accelerated solvent extraction

Canadian Natural Resources Oil Sands Mining and Upgrading

The Horizon Oil Sands include a surface oil sands mining and bitumen extraction plant complemented by on site bitumen upgrading with associated infrastructure to produce high quality SCO In late 2017 the Phase 3 expansion was completed at Horizon the final step in the Company s transition to a Long Life Low Decline asset base

China Full Automatic Bitumen Extraction Apparatus Factory

Product Details STCT 5 Full Automatic Bitumen Extraction Apparatus Application determination of the quantitative amount of bitumen in bituminous paving mixtures whilst providing high safety to the operator Parameters 1 Working voltage 380V±10 or 220V±10 2 Motor power 1 5kW 3 Rotation speed 5 500rpm 11 000rpm 4 One extraction takes 40 min 5 Environment temperature shall between

Steam assisted gravity drainage Energy Education

Steam assisted gravity drainage or SAGD is a method that is widely used to extract bitumen from underground oil sands deposits This method involves forcing steam into sub surface oil sands deposits to heat the bitumen locked in the sand allowing it to flow well enough to be extracted This technology is particularly relevant in Canada because it is the primary method of in situ extraction

Extraction of bitumen from oil sands with hot water and

1 Introduction Oil sands are a combination of clay sand water and bitumen The bitumen is similar to crude oil but denser with higher viscosity averaging 83 2 carbon 10 4 hydrogen 0 94 oxygen 0 36 nitrogen and 4 8 sulfur Hot water extraction process HWEP is a mining ex situ method currently employed in Canada for extraction of bitumen

Process for Solvent Extraction of Bitumen from Oil Sand

Dec 20 2011 · Water based bitumen extraction technology from mineable oil sands faces major challenges of high water usage and tailings disposal In the present study a process for solvent extraction of bitumen from Athabasca oil sands was investigated In this process oil sand is mixed with light hydrocarbon solvents and the solvent–bitumen solution is separated from the mineral

Technology Petroteq Energy Inc PQEFF

In testing periods these solvents separated up to 99 of heavy bitumen asphalt and other lighter hydrocarbons from the oil sands while preventing their precipitation during the extraction process Solvents used in this composition form an azeotropic mixture which has a

What is Bitumen and Why a Pipeline is Important

May 19 2018 · Bitumen Extraction The hot water process is used to extract bitumen from oil sand Mined oil sand contains 10 to 12 bitumen and the rest is made up of mineral matter and water The oil sand is mixed with water in a processing drum or pipeline during the hot water process

Bitumen The Canadian Encyclopedia

Bitumen Extraction In the 1920s chemist Dr Karl Clark of the Alberta Research Council developed the hot water process a method of extracting bitumen from oil sand Clark s method is still used today Oil sand as mined commercially contains an average of 10 12 per cent bitumen 83 85 per cent mineral matter and 4 6 per cent water

Energy at a Glance Pennsylvania State University

Deposits of oil sands The largest of these deposits is in Canada The Athabasca Oil Sands representing about 80 of Canada s bitumen reserves also happens to be the only one shallow enough to lend itself to surface mining which as we will see is the primary method for removing oil sands

US5534136A Method and apparatus for the solvent

A method and apparatus for extracting bitumen whereby tar sand containing bitumen components is contacted with a heated thinning oil mixture to reduce the tar sand viscosity and dissolve bitumen to form a lower viscosity feed slurry The feed slurry is contacted with a light oil in a separator wherein the mixture is separated into product oil and oil sand

The Opposite of Mining Tar Sands Steam Extraction Lessens

Jan 02 2013 · The Opposite of Mining Tar Sands Steam Extraction Lessens Footprint but Environmental Costs Remain Melting bitumen in place is less unsightly than mining tar sands but increasing efficiency


Jan 17 2018 · bitumen extraction test for bituminous concrete pwd road construction Civil engineering live video Duration 12 21 techgoyal construction guru 6 249 views 12 21

Solvent Extraction of Bitumen from Oil Sands Energy Fuels

In the present study solvent extraction of bitumen from Xinjiang oil sands was investigated using solvents such as alkanes toluene and chloroform and mixed solvents such as n hexane–ethyl acetate and cyclohexane–methyl ethyl ketone MEK The n heptane asphaltene content in the extracted bitumen was measured by saturate aromatic resin and asphaltene SARA analysis and the

Canada s oil sands The steam from below Science

ONE of the bleakest scenes of man made destruction is the strip mining of oil sands in the forests of Alberta Canada The sand is permeated with natural bitumen a type of petroleum with the

BITUMEN IN NIGERIA Heinrich Böll Stiftung

Bitumen is typically found surround ing sand grains encased in water and clay which is where it gets its alternative name oil sands The bitumen must be removed from the sands and processed before it can be refined like conven tional oil Unlike the light sweet crude found in the Niger Delta extra heavy oil and bitumen are viscous and dense To

New Extraction Technique Could Replace SDSE for Bitumen

The oil sands are large deposits of bitumen a sticky black and highly viscous liquid or semi solid form of petroleum The largest deposit is located in northeastern Alberta Canada A report issued by Alberta s Oil Sands Discovery Centre states there are an estimated 1 7 to 2 5 trillion barrels of bitumen in Alberta representing 39 of Canada s total oil production

Influence of Oil Sands Composition on Bitumen Quality

Keywords oil sands petrologic end members clay minerals bitumen extraction supernatants INTRODUCTIONO il sands deposits are primarily a mixture of bitumen 4–18 wt inorganic materials i e non clays and clay minerals 55–80 wt and salty water 2–15 wt 1 The oil sands depositin Alberta displays a wide varietyof mineral

Upgrading and extraction of bitumen from Nigerian tar sand

The bitumen extraction from 50 g piece of tar sand was carried out at 50 60 and 65 MPa and 110 °C by pure carbon dioxide and with the addition of 10 mL of fresh or salty water The recovery decreased in the following order with salty water with fresh water pure CO 2 The maximum recovery of 29 6 was obtained at 50 MPa with the addition of

Bitumen from Oil Sands Lab Activity Ward s Science

Using actual oil sands from the Athabasca oil sand deposits in Alberta students will examine the nature and characteristics of oil sand and then formulate and test methods of bitumen extraction Accessories information A refill kit is available and contains only consumable component items

Bitumen Extraction Explained Oil Sands Magazine

In the present study solvent extraction of bitumen from Xinjiang oil sands was investigated using solvents such as alkanes toluene and chloroform and mixed solvents such as n hexane–ethyl

Scientists extract hydrogen gas from oil and bitumen

Aug 19 2019 · Scientists have developed a large scale economical method to extract hydrogen H2 from oil sands natural bitumen and oil fields This can

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