Product Specifications

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Product Description

Overview

Quick Details

Place of Origin: Alaska, United States

Brand Name: ZA

Type: Anthracite

Application: Anthracite Coal

Shape: LUMP

Sulphur Content (%): 6

Fixed Carbon (%): 4

Moisture (%): 1

Phosphorus Content (%): 1

Volatile Matter (%): 8

Supply Ability

Supply Ability: 2000000 Metric Ton/Metric Tons per Week

Packaging & Delivery

Coal is a complex combination of organic matter and inorganic ash formed over eons from successive layers of fallen vegetation. Coals are classified by rank according to their progressive alteration in the natural metamorphosis from lignite to anthracite. Coal rank depends on volatile matter, fixed carbon, inherent moisture, and oxygen, although no one parameter defines rank.

Typically coal rank increases as the amount of fixed carbon increases and the amount of volatile matter decreases.

Anthracite coal is a high-ranking coal with more fixed carbon and less volatile matter than bituminous, subbituminous, or lignite varieties.

Anthracite also has higher ignition and ash fusion temperatures. In the U.S., nearly all anthracite is mined in northeastern Pennsylvania and consumed in Pennsylvania and its surrounding states. The only significant amount of anthracite is used for steam/electric production. Anthracite currently accounts for only a small fraction of the total quantity of coal combusted in the U.S. The anthracite burned is primarily reclaim from old production as no new anthracite is mined.

Another form of anthracite coal burned in boilers is anthracite refuse, commonly known as culm. Culm was produced as breaker reject material from the mining/sizing of anthracite coal and was typically dumped by miners on the ground near operating mines. It is estimated that there are over 16 million tons of culm scattered in piles throughout northeastern Pennsylvania.

The heating value of culm is typically in the 2,500 to 5,000 British thermal units/pound (Btu/lb) range, as compared to 12,000 to 14,000 Btu/lb for anthracite coal.

What is anthracite used for?

It is used to produce electrical power. The coal is burned to heat water into steam…the steam turns the electrical generators. It is used for heat in industry and it’s by-products.

Control

Controls on anthracite-fired boilers have mainly have been applied to reduce PM emissions.

The most efficient particulate controls—fabric filters, electrostatic precipitators (ESP), and scrubbers—have been installed on large pulverized anthracite-fired boilers. In fabric filters (baghouses), particulate-laden dust passes through a set of filters mounted inside the collector housing.

Dust particles in the inlet gas are collected on the filters by inertial impaction, diffusion, direct interception,and sieving. The collection efficiencies of fabric filters or coal-fired boilers can exceed 99 percent.

Mining Anthracite

Anthracite Coal is mined from the oldest geological formations, and therefore has spent the longest time underground and been subjected to the most pressure and heat, making it the most compressed and hardest coal.

Hard coals contain greater potential to produce heat energy than do the softer, geologically “newer” coals.

Coal deposits are scattered around the globe, but the coal from a 500 square mile region of northeastern Pennsylvania is special.

During the Paleozoic era, 300 million years ago, what is now rugged and mountainous terrain was a steamy plain filled with swamps. Tropical plants grew and died here, and as decaying matter, sank to the bottom of these swamps to form a dense organic substance known as peat.

Over millions of years, shifts in the earth’s plates and other landscape changes compressed prehistoric peat deposits into mineral layers known as coal.

Other terms which refer to anthracite are black coal, hard coal, stone coal, blind coal, Kilkenny coal, crow coal (or craw coal from its shiny black appearance)

Supply Ability

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