Andy Brown by huanghengdong

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									Hi, my name is Andy Brown, I'm the Executive Vice President for Shell in Qatar. And also the
managing director of Pearl GTL. And here we are, in the middle of the Pearl GTL site, in Ras
Laffan city.

Ras Laffan city is on the northeast coast of Qatar, about 80 kilometres north of Doha. It's
actually on the sea side and offshore here we have the massive North Field. 900 TCF of gas,
which is the largest gas field in the world.

We have offshore there a block where we've been drilling wells, where we'll produce gas
through pipelines 60 kilometres on shore, for processing here in Pearl GTL.

This is the largest construction site in the oil and gas industry. We've had as many as 48,000
people constructing the plant here.

When that gas comes onshore we process it in this area here. This is called the gas
processing unit. In here, the gas comes in and the gas is very rich, with liquid. We separate
those liquids off. They're called condensate. We also take some of the lighter liquids off. We do
that in the unit over here. We chill the gas, so the liquids drop out of the gas in these units.
That makes products like propane and butane. The gas then comes further into this plant.
Together with the condensate, the propane, the butane and actually ethane we make, we
make 120,000 barrels a day of those associated products. But we have to clean the gas out
even further before it goes into the GTL process. We do it over here. This is called the acid gas
removal unit. In these units we have to take the hydrogen sulphide out of the gas and we make
in total about 600 tonnes a day of sulphur. That then is exported, along with the condensate,
the LPG, to export markets around the world. What comes out of this plant is very clean gas.
Very clean methane, which will then go further into the GTL process.

The second ingredient we need for the GTL process is oxygen. Behind me here are the air
separation units. There are eight of them. These are the largest air separation units in the
world. We make 28,800 tonnes a day of oxygen in these plants. And we do it, by taking air,
compressing it, and then chilling it to about minus 180 degrees centigrade. In these cold
boxes, these tall towers you see here, is where the oxygen and the nitrogen as liquid, separate
out and allows us to create that oxygen. To compress the air we need enormous air
compressors and there are eight of these, each about seventy megawatts in power. To drive
those we use steam that we get from our process.

So we integrate the energy we get from the process with what we need to drive the machinery.
And the oxygen from here then goes into our GTL reactors. These are reactors that run at
about 1350 degrees centigrade. It's very hot. Metallurgy is very important there. We make from
that syngas, carbon monoxide and hydrogen. Of course we recover as much of that heat as
possible in a big steam system that drives a bunch of the equipment on the plant.

But the carbon monoxide and hydrogen comes in here to the GTL reactors. And through the
tubes of the reactors, it is converted to the GTL waxes. In these reactors many, many
thousands of tubes in each reactor... Actually if you lay the tubes end to end, you'll go all the
way from here to Japan. Each of those tubes is full with catalysts that have specially been
formulated by Shell. Over thirty years of research to refine that particular catalyst. Almost 5000
tonnes of it. And the surface area of that catalyst is like eighteen times the surface area of the
state of Qatar.

So we get from these reactors wax, but we also get water. We actually make more water than
wax. That water is then taken to our effluent treatment plant on the other side of the plant and
cleaned up and reused. So we actually don't use any fresh water at all on the plant, we reuse
all our water back in the steam systems.
The waxes from the GTL reactors come here to the liquid processing unit. This is the refinery.
The first thing we take is the light ends off that wax. This makes excellent feed stocks for
detergents. Then the rest of the waxes come to this unit here. This is called our hydrocracker,
it's one of the largest in the Shell group. That's where we cut those waxes into the smaller
components, which we distil over in the distillation unit here into things like kerosene for
aviation fuels, gasoil for diesel cars, naphtha for petrochemicals.

That also has a very heavy end. That heavy material goes into making lubricants through our
base oil plant. We actually have the largest quality base oil plant in the whole world, here on
Pearl GTL.

All those products are then sent down to our tank farm, we have one million cubic metres of
storage in that tank farm, before the products are then exported and they're sent to customers
right across the world, in the US, in Europe, in Asia and Shell is involved in a lot of that
distribution and the marketing of those products downstream.

We've been round all the process facilities on Pearl GTL, but really, the core of the GTL plant
is here in utilities. Because in our processes we produce lots of heat and we leave lots of
services. So the integration of the process in utilities is crucial to get the efficiency we need for
the Pearl GTL plant. In here, in the heart of the utilities, you get essentially water systems, we
have steam systems, 8000 tonnes per hour of steam will be distributed around the plants. This
is the largest steam system built in one place in the world. That steam and electrical power will
drive rotating equipment of 1200 megawatts of power, it's a phenomenal amount of rotating
equipment. That's all coordinated from here in the utilities plant.

So the water that we have recovered from the GTL reactors, in the effluent treatment plant, is
cleaned up so it can be reused. And it's first reused here in these degassing vessels, which is
the boiler feed, before that steam is then generated. That steam is generated in all our key
reactors, but also from the back of the gas turbines here and we have six 40 megawatt gas
turbines here that actually get their power from off-gas from the reactors.

So we integrate everything to make sure we use every last bit of energy. And so that these gas
turbines, 240 megawatt in total, they also have heat recovery units on the back of them. They
recover even more steam. So, as you can see, this whole plant is full integration of energy,
process and utilities.

 This is the largest construction site in the oil and gas industry. Some of the quantities that
we've installed are quite incredible. We've installed 600,000 m3 of concrete. That's the same
as seven Wembley stadiums. We've laid 11,000 kilometres of cables. We've erected 120,000
tonnes of steel, that's fifteen Eiffel towers of steel. And we've laid also about 100,000 tonnes of
pipes. We brought all those materials in here to Ras Laffan. That's two million freight tonnes of
material. To do that, we built our own quay here in Ras Laffan city so we could bring the ships
directly in, close to this site.

So it's a fantastic experience for all of us to be involved in this enormous project. One of the
best things about working here, is working with the team. We've had 48,000 people working
here. We've built the Pearl village, where they live. So that we can look after them. We can
look after their welfare, we can look after their safety training, to make sure that every day they
go home safely. As a result, we get a great safety record. The whole team has really pulled
together to make Pearl GTL possible.

It is truly one of the most impressive projects in the world. It's a project that's linked to the
largest gas field in the world. It makes very clean products for distribution right across the
world. Being that hard link to that gas field, making those products for generation, after
generation, after generation, we'll be able to deliver these products for my children and my
children's children. This is a fantastic achievement, we're making history and we're all very
proud to be a part of it.

								
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