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Recently, two sets of aromatization Shandong plant put into production,
gas processing project Adds "newcomer." With the value of gas
hydrocarbons are gradually excavated, in addition to aromatization
completely apart, isomerization, methyl ethyl ketone, butyl acetate and
other gas processing has been rapid development of gas catalytic cracking
process to be accelerated to as the main civil gas resources, consumption
structure, are turning to high value-added chemical products processing,
chemical products and liquefied petroleum gas processing, solvent
processing from the original, turned to the olefin and other basic raw
materials. Gas into chemical products deep processing times.
LPG is the main component of a mixture of propane and butane, and
accompanied by a small amount of propylene and butene. In recent years,
large-scale refineries come on stream, along with a substantial increase
in gas production, and gradually show signs of excess production; while
natural gas and other natural gas projects as well as dimethyl ether and
other alternative energy applications, further squeezing the liquefied
gas the civilian market, gas processing profits shrunk dramatically.
Processing into chemical products, liquefied petroleum gas has become an
important way.
Pushing gas level of profitability
Aromatization is the use of gas inside the olefin component, the
production of high octane aromatics and high-clean gas production
process, and liquefied petroleum gas and gasoline, aromatics and other
products spread significantly, thus the use of gas as a raw material for
profitable processing . Therefore, LPG and gasoline into aromatics, can
effectively improve the economic efficiency of local refineries. Since
2009, the local concentration of refineries in Shandong have been started
on the aromatization device. And now the new gas on the catalytic
cracking unit, is liquefied in the olefin components through pyrolysis,
propylene, industrial-grade isobutane, propane and mixed aromatic
hydrocarbons (blending component) as the main part of the gas cracker
there ethylene output.
According to a company of Dongying gas cracker person in charge of the
preparations, their yield of propylene is expected to reach 20% to 30%
ethylene yield is expected in 30% to 40%, the rest of propane, isobutane,
and mixed aromatic components , which isobutane purity above 95%.
Pyrolysis products of propylene, ethylene is higher than the price of
aromatics. According to Zhuo record information data show that olefin-
rich gas resources in Shandong Province mainstream market price - 6,200
yuan in 6 100 (t value, the same below), propylene market in the 12400 -
the mainstream price 12,500 yuan, the mainstream market price of propane
in 6000 ~ 6200 yuan, mixed aromatics mainstream price ~ 8300 yuan in
8200, 95% isobutane content of the mainstream market price in 5800 ~ 5900
yuan. A 20 million ton / year gas cracker gross margin is 1.23 times the
cost of production, creating an annual net profit is expected to reach
2.5 billion, catalytic cracker gas level of profitability is much higher
than aromatization device.
Upgrading of traditional craft products
Gas processing chemical products, but also some of the traditional
chemical production processes have an impact.
Butyl acetate traditional production process, is the use of acetic acid
and butanol dehydration from the reaction, the main raw material is
butanol, the current market price has risen to 15,000 yuan, of which
acetic acid in the current market price of 3,500 yuan, the final butyl
acetate generated the current market price is only 7500 yuan. Count
catalyst unit operating costs and labor costs, butyl acetate has been
well below the market price of the cost line, eliminate backward
production technology workers to find new methods of production is
imminent.
Relatively low gas prices butanol, the use of gas inside the olefin
component, butyl acetate can reduce the production cost of raw materials,
carbon-ene-product - high-octane gas, the octane number and the heat was
significantly increase, the market price around $ 5100, but also as a
vehicle for further processing liquefied petroleum gas, greatly reducing
overall costs, so that butyl acetate production cost of raw materials
needed in 3000 to 4,500 yuan, with a larger profit margins. Compared to
the acetic acid and butanol dehydration reaction of the process line, the
cost has been substantially reduced.
According to the reporter, Shandong Weifang Chemical Technology Co., Ltd.
Yixing produce 50,000 tons of butyl acetate, the project put into
operation, still have to start construction this year 50,000 tons / year
plant. Kenli Petrochemical, Shandong, Hebei joint petrochemical, Jilin
Petrochemical, Yangzi Petrochemical and Daqing Petrochemical Company have
launched plans for the project sec-butyl acetate.
Nourish the development of downstream products
China's fine chemical products, raw materials, production costs are high,
gas processing chemicals to liquefied petroleum gas as raw material
components for olefin aromatization, isomerization, catalytic cracking,
producing methyl ethyl ketone, butyl acetate, maleic anhydride with
hydrocarbons as raw material , butadiene, isobutylene, to produce
olefins, aromatics, alkanes and other 10 types of chemical products, this
will rise to Oxo alcohols, vinyl acetate, xylene, and more fine chemical
products. Gas catalytic cracking olefins with methanol to olefins is
expected to become common olefin resources to add. Shandong enterprises
intend to use a catalytic cracking gas and coal to take the propylene
synthesis gas (carbon monoxide and hydrogen) Oxo Oxo, gas processing
chemical products to the oil industry, coal chemical, salt chemical
industry chain to form a network.
It should be noted that chemical products, liquefied petroleum gas
processing project quickly launched, boosting the gas prices rise, the
current focus on gas processing project in Shandong, significantly higher
gas market conditions, raw material procurement is gradually transferred
to the outside.