Search results for: “climate model”
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Pressure swing adsorption: energy economics?
Pressure swing adsorption purifies gases according to their differing tendencies to adsorb onto adsorbents under pressure. Pressure swing adsorption costs $0.1/kg when separating pure hydrogen from reformers, and $2-3/mcf when separating bio-methane from biogas. Our cost breakdowns include capex, opex, maintenance, zeolite replacement, compression power and CO2 costs.
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Newlight AirCarbon: bioplastics breakthrough?
Newlight is converting (bio-)methane and air into polyhydroxybutyrate (PHB), a type of polyhydroxyalkanoate (PHA), a biodegradable bioplastic which it markets as AirCarbon. The product is ‘carbon negative’, biodegradable, strong, ‘never soggy’, dishwasher safe. Our AirCarbon technology review found some good underlying innovations, but was unable to de-risk cost and capex aspirations.
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Acetylene: production costs?
Acetylene production costs are broken down in this data-file, estimated at $1,425/ton for a 10% IRR on a petrochemical facility that partially oxidizes the methane molecule. CO2 intensity is over 3 kg/kg. Up to 12MTpa of acetylene is produced globally for welding and as a petrochemical building block.
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Energy needed to produce steam: enthalpy and entropy data?
This data-file quantifies the energy needed to produce steam, for industrial heat, chemicals, CCS plants and hydrogen reforming? As rules of thumb, low pressure saturated steam at 100◦C requires 2.6 GJ/ton (720kWh/ton), medium pressure dry steam at 6-bar and 300◦C requires 3 GJ/ton (830kWh/ton) and super-critical steam at 250-bar and 600◦C requires 4 GJ/ton (1,150kWh/ton).
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Propylene oxide: production costs?
Propylene oxide production costs average $2,000/ton ($2/kg) in order to derive a 10% IRR at a newbuild chemicals plant with $1,500/Tpa in capex. 80% of the costs are propylene and hydrogen peroxide inputs. 60-70% of this $25bn pa market is processed into polyurethanes. CO2 intensity is 2 tons of CO2 per ton of PO today,…
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Offshore wind: capacity by country and forecasts?
Global offshore wind capacity stood at 60GW at the end of 2022, rising at 8GW pa in the past half decade, comprising 7% of all global wind capacity, and led by China, the UK and Germany. Our forecasts see 220GW of global offshore wind capacity by 2030 and 850GW by 2050, which in turn requires…
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Hydrogen peroxide: production costs?
Hydrogen peroxide production costs run at $1,000/Tpa, to generate a 10% IRR at a greenfield production facility, with c$2,000/Tpa capex costs. Today’s market is 5MTpa, worth c$5bn pa. CO2 intensity runs to 3 kg of CO2 per kg of H2O2. But lower-carbon hydrogen could be transformational for clean chemicals?
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Residential energy consumption over time?
Global residential energy demand runs at 2.5 MWH pp pa, of which c40% is from electricity, 40% is gas, c13% is biomass and c7% is oil. In our gas and power models, electrification rises to 65% by 2050, to help renewables reach 50% of global electricity. Heat pumps improve efficiency and lower primary demand in the developed world.
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Fans and blowers: costs and energy consumption?
Fans and blowers comprise a $7bn pa market, moving low-pressure gases through industrial and commercial facilities. Typical costs might run at $0.025/ton of air flow to earn a return on $200/kW equipment costs and 0.3kWh/ton of energy consumption. 3,000 tons of air flow may be required per ton of CO2 in a direct air capture…
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Boltzmann energy overview?
The Boltzmann constant, denoted as kB, or 1.381 x 10^-23 J/K, is the most important number in thermodynamics. It denotes the rate at which a single particle will gain thermal energy (in Joules) as its absolute temperature rises (in Kelvin). It underpins the Boltzmann distribution and the Maxwell-Boltzmann distributions, which matter in modelling gases, energy…
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