---------- Forwarded message ----------
From: Dr Amarnath Giri<AmarnathGiri@nagarjunagroup.com>
Date: Mon, Apr 18, 2016 at 9:44 PM
Subject: for me
To: goswami248@gmail.com
Dr. Amar Nath Giri
EHSQ
("Many Species: One Planet ,One Future)
.
From: Dr Amarnath Giri<AmarnathGiri@nagarjunagroup.com>
Date: Mon, Apr 18, 2016 at 9:44 PM
Subject: for me
To: goswami248@gmail.com
Sr.No | Description of the job | Benefits expected Improvement on Environment |
| Ammonia Plant - II | ||
1 | Primary Reformer (EF-201): Burners and air registers repair | Better firing pattern and reduction in NOx content in flue gas, facilitates to reduce excess oxygenReduction in flue gas temp & NOx formation and energy savings |
2 | Seconday reformer (ER-203) refractory repair | This reduces the thermal losses and conserve energy & avoids unexpected outages.Reduction of thermal losses & conservation of natural resources |
3 | Cleaning of waste hear boiler (EE-208) tubes | This improves the heat transfer in RG boiler and thus aims in increasing the front end steam generation.Conservation of Energy & conservation of natural resources |
4 | NRV inspection d/s of 04-HV-302 (Third stage outlet) | Avoid addl.pressure drop & conserve energyConservation of Energy |
5 | Provision of new line for heating Methanator using ammonia plant- I syn gas. | This modification will reduce about 4 hrs. of time during startup and thus avoids unfructuous venting of gas.Air pollution reduction and resource conservation |
6 | Arresting of Methanator safety valve (PSV-13) passing | This facilitates in reduction of air pollution and conserves energy.Air pollution reduction and resource conservation |
7 | EE 551 4 new tubes inserted | Improves Heat transfer areaConservation of energy |
8 | Syn gas compressor turbine (TK 431) vacuum improvement | Saves steam consumptionResource (NG)conservation |
9 | Syn gas compressor (EK-431) LP barrel seals replacement with SS seals from Aluminium seals. | This facilitates in reduction of oil leakage, oil content in final liquid effluent.Reduction of ammoniacal nitrogen in liquid effluent and resource (Oil) conservation |
10 | Interconnection of process air compressors (K-421 & EK-421) of Plant-I & Plant-II | This will avoid shut down of the plant due to air compressor suction strainer choking.Air pollution reduction and resource conservation |
11 | Heat exchanger leaks in EE-504, EE-505,EE-510 attended. | This reduces the TKN content in the final liquid effluent, for better maintenance of cooling water system, savings in chemical consumption, improved heat transfer and reduction on refrigeration load.Reduction of TKN in liquid effluent and resource ( Chlorine, acid, alkali, CT Chemicals) conservation |
12 | PGRU molecular seive bed (V-552) /absorber (C-550) repair. | This repair will avoid venting of Tail gas, Purge gas and thus reduces the air pollution.This also improves the ammonia recovery.Air pollution reduction and improved ammonia recovery aims in conservation of natural resources |
13 | Heat exchanger leaks in EE-602 attended. | This avoids the frequent choking and reduce frequent backwashing in cooling tower system.Energy conservation and operational advantagious |
| Cooling Towers of Process Plant-II | ||
1 | Cooling tower basin & sump cleaning and repair of screens & V bars | Reduction of chlorine consumption and improved heat transfer in process plants, supply of more cooler waterResource conservation (Chlorine) and improved heat transfer in process plants. |
| Urea-2 | ||
1 | Hydrolyzer preheater (E-119) Chemical cleaning & hydrolyzer (ER-102) internal cleaning | To remove oil accumuation and reduce HS steam consumption of Hydrolyser and to improve process condensate qualityResource (NG) conservation & improvement in urea process condenste |
2 | Provision of drain for EV-101 to drain the accumulated oil | To remove oil accumuation and improve prill qualityImproved prill qualtiy & reduction of fugitive ammonia emissions |
3 | E-142 Tube leak arresting | Improves the quality of process condensateResource conservation |
4 | Cleaning of oil in the process system in urea plant 2 | Improves the quality of product and improves the heat transfer efficiency.Resoure conservation & improved quality of urea |
5 | Cleaning of EE-107, EE-108, EE-161, EE-117 exchangers | The ammonia losses from MP, LP & Waste water vents are expected to come down for better condensation in the above condensers.Reduction of ammonia emissions and improved ammonia recovery |
6 | Cleaning of M.P. Decomposer | Expected to perform better resulting in reduced steam consumption and improved product urea quality.Improved urea product quality and reduction of ammonia emissions. |
7 | Provision of Blow down vent stack sample points for ME-114, ME-115, ME-121 | As a result of this, identification of exact source of ammonia leaks will be easier and facilitates for timely actions to improve ammonia recovery.Facilitates to improve ammonia recovery and reduction in ammonia emissions |
8 | Passing PSVs 17, 21, 35, 38, 55, 163 attended | This will reduce the passing of ammonia and CO2 into atmosphere.Reduction of air emissions (NH3 & CO2) & improved ammonia recovery |
9 | Cleaning of Stripper, MPD, LPD and Pre Vacuum concentrator | This will reduce the biuret content in the final product and thus avoids the ammonia emissions.Improved urea product quality and reduction of ammonia emissions. |
10 | Cleaning of Prill Tower top louvers | This improves the air draft in the prill tower which results in reduction of concentration of ammonia and dust emissions.Reduction of ammonia & dust emissions from prill tower |
| Utilities | ||
1 | NG pressure control valve in AST area | Avoids air pollution and aims resource conservation.Resource(NG) |
2 | HRSG-C furnace repair and arresting leaks in CPH | Reduces thermal pollution and improves energy.Resource(NG) |
3 | Cooling towers fills/distributor nozzles renewal | Better cooling water temp. facilitates better ammonia condensation and lower ammonia emissions from process.Resource( NG, NH3 ) conservation |
Dr. Amar Nath Giri
EHSQ
("Many Species: One Planet ,One Future)
.