methanol production from associated petroleum gas p3group

Process Flow 1 Feed Pretreatment - PFD 100 APG is passed through an absorber, where MDEA absorbs H2S and CO2 . The sweetened gas is sent to the steam reformer, whilethe MDEA is regenerated using a stripper. 2 Steam Reforming and Syngas Conditioning - PFD 200 Sweet Gas Methanol Purification - PFD 400 4 Excess unreacted gas is removed from the methanol stream to generate a recycle stream back to the conditioning reactor. The remaining impure methanol-water mixture is purified in an ordinary distillation column to produce 99.85 wt% pure methanol as distillate. Conditioned Syngas Sweet Gas LRich MDEA Wastewater Pure Methanol L Conditioned Syngas LImpure Methanol Methanol Synthesis Reactor CO + 2H2 = CH3OH 3 Methanol Synthesis - PFD 300 Conditioned syngas is converted into methanol in the methanol synthesis reactor. Isothermal conditions are maintained by sand in a fluidized cooling jacket. The generated impure methanol stream is purified downstream. Market Analysis Since February of 2016, the price of Methanol has risen by 180% to $500 per tonne. Demand for methanol will exceed 100 million tonnes by 2023. The major demand is driven by Northeast Asia. P3 Group Methanol Production from Associated Petroleum Gas UBC Department of Chemical and Biological Engineering CHBE 453/454 Chemical and Biological Process and Product Design 17/18 Group Members: Aabid Mulla, Amanda Melney, Bissultan Umbet, Haren Teckchandani, Harsh Teckchandani, Onyinye Ofulue and Pranav Bajaj Introduction Environmental Analysis This project presents an economically feasible gas-to-liquid process technology aimed at reducing greenhouse gas emissions contributed by the flaring and venting of associated petroleum gas (APG). APG is a naturally occuring gas found in petroleum deposits, and is now captured due to strict environmental regulations. Feed flowrate of APG - 73 tonnes/hr Annual Production Capacity of Methanol - 712,800 tonnes Plant Location - Grande Prairie, AB PFD 100 Emission Factor Emission Factor (EPA) Sulfur Dioxide 0.35 lb/Mft3 6.63 lb/Mft3 PFD 200 Sulfur Dioxide 0.35 lb/Mft3 0.60 lb/Mft3 PFD 400 Volatile Organic Compounds 27.32 lb/ton 2.20 lb/ton The emission factors of other gaseous compounds emitted are several magnitudes lower than the corresponding emission factors based on United States Environmental Protection Agency (EPA) standards. Cooling water from heat exchangers is cooled down to 20 °C in cooling towers and is then recycled back to the heat exchangers. Wastewater contains 95 wt% water and 5 wt% methanol. The stream will be treated and BOD5 values must be monitored. Process Safety High pressure Hazard Safeguard Process control loops High alarms Safety relief valves H2S / CO release Pressure indicators Gas detectors Emergency flare High temperature Insulation Process control loops High alarms Syngas Conditoning Reactor CO2 + H2 = CO + H2O Economic Analysis Fixed Capital Investment: $644,041,095 Annual Revenue: $356,400,000 Annual Operating Cost: $288,612,023 Internal Rate of Return: 15% Net Present Worth: $238,123,076 All dollar values are in USD. Interest rates are assumed to be 12%. CCA Class 53 (50% depreciation) for equip- ment is used. Provincial and Federal taxes at 32%. Fixed Capital Investment Steam Reforming Reactor CnHm + nH2O = nCO + (n+0.5m)H2 Impure Methanol MDEA APG Steam

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Page 1: Methanol Production from Associated Petroleum Gas P3Group

Process Flow

1 Feed Pretreatment - PFD 100APG is passed through an absorber, where MDEA absorbs H2S and CO2 . The sweetened gas is sent to the steam reformer, whilethe MDEA is regenerated using a stripper.

2 Steam Reforming and Syngas Conditioning - PFD 200

Sweet Gas

Methanol Puri�cation - PFD 4004

Excess unreacted gas is removed from the methanol stream to generate a recycle stream back to the conditioning reactor. The remaining impure methanol-water mixture is purified in an ordinary distillation column to produce 99.85 wt% pure methanol as distillate.

Conditioned Syngas

Sweet Gas

LRich MDEA

Wastewater

Pure Methanol

LConditioned Syngas LImpure

MethanolMethanol Synthesis Reactor CO + 2H2 = CH3OH

3 Methanol Synthesis - PFD 300

Conditioned syngas is converted into methanol in the methanol synthesis reactor. Isothermalconditions are maintained by sand in a �uidized cooling jacket. The generated impure methanol stream is puri�ed downstream.

Introduction

Market AnalysisSince February of 2016, the price of Methanol has risen by 180% to $500 per tonne.

Demand for methanol will exceed 100 million tonnes by 2023.

The major demand is driven by Northeast Asia.

P3GroupMethanol Production from Associated Petroleum Gas

UBC Department of Chemical and Biological EngineeringCHBE 453/454 Chemical and Biological Process and Product Design 17/18

Group Members: Aabid Mulla, Amanda Melney, Bissultan Umbet, Haren Teckchandani, Harsh Teckchandani, Onyinye Ofulue and Pranav Bajaj

Introduction

Environmental Analysis

This project presents an economically feasible gas-to-liquid process technology aimed at reducing greenhouse gas emissions contributed by the flaring and venting of associated petroleum gas (APG). APG is a naturally occuring gas found in petroleum deposits, and is now captured due to strict environmental regulations.

Feed flowrate of APG - 73 tonnes/hr

Annual Production Capacity of Methanol - 712,800 tonnes

Plant Location - Grande Prairie, AB

PFD 100

Emission Factor Emission Factor (EPA)

Sulfur Dioxide 0.35 lb/Mft3 6.63 lb/Mft3

PFD 200 Sulfur Dioxide 0.35 lb/Mft3 0.60 lb/Mft3

PFD 400 Volatile Organic Compounds

27.32 lb/ton 2.20 lb/ton

The emission factors of other gaseous compounds emitted are several magnitudes lower than the corresponding emission factors based on United States Environmental Protection Agency (EPA) standards.

Cooling water from heat exchangers is cooled down to 20 °C in cooling towers and is then recycled back to the heat exchangers.

Wastewater contains 95 wt% water and 5 wt% methanol. The stream will be treated and BOD5 values must be monitored.

Process Safety

High pressure

Hazard Safeguard

Process control loopsHigh alarmsSafety relief valves

H2S / CO releasePressure indicatorsGas detectorsEmergency �are

High temperature Insulation Process control loopsHigh alarms

Syngas Conditoning ReactorCO2 + H2 = CO + H2O

Economic Analysis

Fixed Capital Investment: $644,041,095

Annual Revenue: $356,400,000

Annual Operating Cost: $288,612,023

Internal Rate of Return: 15%

Net Present Worth: $238,123,076

All dollar values are in USD. Interest rates are assumed to be 12%. CCA Class 53 (50% depreciation) for equip-ment is used. Provincial and Federal taxes at 32%.

Fixed Capital Investment

Steam Reforming ReactorCnHm + nH2O = nCO + (n+0.5m)H2

ImpureMethanol

MDEA

APG

Steam

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