Ammonium Nitrate Plants Capacity Increasing

Ammonium Nitrate Plants

Capacity Increasing

Nitrogen + Syngas 2019

International Conference & Exhibition

Aleksandr Vasilev – Deputy Technical Director, JSC GIAP

© ALVIGO. All rights reserved

JSC GIAP was founded in 1931;

At present GIAP is included in ALVIGO

Group of Company;

ALVIGO is a group of Design Institutes,

united in a single management complex;

It also includes NIAP LLC and

Khimtekhnologiya, Ltd design institutes;

Activity of ALVIGO is focused on the

production of ammonia, methanol,

ammonium nitrate, nitric acid, acetylene,

acetic acid, and other products of chemical

industry.

27.03.2019

ALVIGO Group of Company

Slide 2


27.03.2019

Ammonium Nitrate Production Experience

Slide 3

АС-50 (4 plants)

АС-60 (26 plants)

АС-67 (7 plants)

АС-72 and АС-72 М (16 plants)

0

2000

4000

6000

8000

10000

12000

Общая мощность агрегатов по производству аммония нитрата Total capacity of ammonium nitrate production plants

GIAP has designed 50+ ammonium nitrate production plants:

Total capacity is more than 11 million tons per year

Ammonium Nitrate Technology


27.03.2019

Prilled Ammonium Nitrate Process Stages

Slide 5

NH3

НNO3

Evaporation

Prills

Cooling

Neutralization Prilling

NH4NO3

Discharge

treatment

To atmosphere


Neutralization Stage

27.03.2019 Слайд 6

Pressure of neutralization

process is atmospheric;

Natural circulation in vessel;

Process is conducted with an

excess of nitric acid;

Local treatment of secondary

steam;

Concentration of solution at outlet

is 89-93% wt.

Secondary Steam

(gas.)

2nd Stage Neutralizer

(gas.)

AN Solution

Neutralizing Heat

Recovery Unit

(Neutralizer)


Evaporation Stage

27.03.2019 Слайд 7

Production of ammonium

nitrate melt is in one stage at

atmospheric pressure;

Residual moisture content in

melt is not more than 0.3 %

wt;

There is no necessity to

locate evaporator unit on the

top of prilling tower.

Scrubber

Evaporator

AN solution

Steam-Air mixture

AN melt

AN melt

Pump

AN solution

AN solution

Steam

Steam Condensate

Air 2nd stage neutralizer

AN melt

(gas.)


Prilling and Cooling Stage

27.03.2019 Слайд 8

Prilling unit is a metallic

tower of rectangular section

Prills cooler is a 3-section

device of “fluidized” bed

High efficiency system of

atmospheric discharge

treatment

To atmosphere To atmosphere

AN melt

AN solution

AN solution

Air

Air

(Liquid)

Air Air Conditioning

Unit

Steam-Air

mixture

Prilling tower

Cooler in “fluidized” bed

Prilled AN


27.03.2019

Quality Parameters of Finished Product

Slide 9

Parameter Name GOST 2-2013

Grade B

(higher grade)

Finished

Product

Mass fraction of nitrogen, %, not less than 34.4 34.5-34.6

Mass fraction of water, %, not more than 0.3 0,2

Grain-size distribution:

Mass fraction of prills:

- from1 to 4 mm, %, not less than

- from 2 to 4 mm, %, not less than

- less than 1 mm, %, not more than

- more than 6 mm, %, not more than

95

80

3

0

98

85±5

1

0

Static strength of prills, calculated as prill,

N/prill (kg/prill), not less

8 (0.8)

12(1.2)

Friability, %, not less than 100 100


27.03.2019

Consumption Indices per 1t of Product

Slide 10

Name Unit Consumption with

operational losses

Raw Material

Gas Ammonia (100% NH3) kg 213

Nitric Acid (100% HNO3) kg 787

Utilities

Saturated Steam Р=1.5 MPa G t 0.3

Circulating Water m3 7

Electrical Energy kWh 25

AC-72 Plants Capacity Increasing


АС-72 Plants Capacities

Slide 12 27.03.2019

After Revamping 2200-2400 tpd

Achieved Capacity 1600 tpd

Design Capacity 1360 tpd


Neutralization

Prilling

(revamping)

Evaporation Neutralization

27.03.2019

Revamping Scheme of АС-72 Plants

Slide 13

NH3 НNO3

Evaporation

NH4NO3

Discharge

treatment

(revamping)

To atmosphere

Additional

treatment of

discharge

Prills cooling

(revamping)

Additional Line of

Neutralization and Evaporation


Air Treatment Scrubber Revamping of АС-72 Plants

Slide 14 27.03.2019

2 stage – filtering treatment

for entrapping of fine

particles and ammonium

nitrate aerosols

1stage – scrubber part with

sieve trays


Main Revamping Parameters of АС-72 Plants

Slide 15 27.03.2019

Parameter

Name

Before

Revamping

After

Revamping

Plant Capacity, tpd 1600 2200-2400

Impurity Content in

Air Discharged, mg/m3:

NH4NO3 > 100 30-50

NH3 > 40 10-15


Track Record of Ammonium Nitrate Plants Revamped

27.03.2019 Слайд 16

Year Customer Services Capacity,

tpd

At

progress KuibyshevAzot,

Togliatti, Russia Ammonium nitrate granulation plant 2300

At

progress KemerovoAzot,

Kemerovo, Russia Revamping of AC-72/1,2 plants with с

capacity increasing

2300

2018 Acron,

Dorogobuzh, Russia Revamping of АС-72/1,2 plants 2300

2017 FosAgro-Cherepovets,

Cherepovets, Russia Revamping of discharge treatment system 1800

2015 UralChem,

Kirovo-Chepetsk,

Russia

Revamping of АС-72 plant with capacity

increasing and reduction of atmospheric

discharge

2100

2007 Neochim,

Dimitrovgrad, Bulgaria Revamping of АС-72 plant with capacity

increasing and reduction of atmospheric

discharge

2150


Thank you for attention

27.03.2019 Slide 17

Ammonium Nitrate Plants Capacity Increasing

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