CO2, Comparison and Water

Sandia team puts power into local grid with supercritical CO2 closed-loop Brayton-cycle turbine

Green Car Congress

AUGUST 22, 2022

Because so much energy is lost turning steam back into water in the Rankine cycle, at most a third of the power in the steam can be converted into electricity. In comparison, the Brayton cycle has a theoretical conversion efficiency upwards of 50%. The recuperator improves the overall efficiency of the system.

Grid

Grid Power Powered CO2

RENK supplies special gear units for compressors for production of green steel

Green Car Congress

AUGUST 23, 2023

Germany-based RENK Group, a manufacturer of mission-critical drive technologies, is supplying three high-speed special gear units via RENK-Maag GmbH , a group company, for compressors for the production of green steel to Siemens Energy Compressors GmbH as part of the “SALCOS” (Salzgitter Low CO2 Steelmaking) project of the Salzgitter AG steel group.

Supplies

Supplies Green Production Hydrogen

SRI developing process for co-gasification of methane and coal to produce liquid transportation fuels; negligible water consumption, no CO2

Green Car Congress

DECEMBER 20, 2011

Researchers from SRI International (SRI) are developing a methane-and-coal-to-liquids process that consumes negligible amounts of water and does not generate carbon dioxide. Lifecycle GHG comparison. Water consumption less than 235 kg/barrel. Top: Conventional F-T process. Bottom: SRI process. Click to enlarge. Click to enlarge.

Coal

Coal Water Transportation Fuel

Geely invests in Carbon Recycling Intl.; vehicles fueled by methanol from CO2, water and renewable energy

Green Car Congress

JULY 8, 2015

Geely’s CRI investment and work with renewable methanol is similar to the approach Audi is taking with its own e-fuels projects—producing very low carbon liquid or gaseous fuels using only renewable energy, water and CO 2. Their results showed that in comparison with gasoline mode, CO emitted in methanol mode decreased 11.2%.

Renewable

Renewable Carbon Water Fuel

New Audi paintshop at Ingolstadt; heating energy & water per car down by 20%, CO2 by 30%, VOCs by 90%; bell-bell

Green Car Congress

SEPTEMBER 22, 2016

Heating energy and water consumption per car are reduced by 20%. This comparison helps to prevent possible production flaws in the electronic quality process, with support from an electronic quality inspection. For example, a big‑data robot measures the painted automobiles at more than 100 measuring points.

Audi

Audi Water Energy CO2

USC team develops highly efficient catalyst system for converting CO2 to methanol; 79% yield from CO2 captured from air

Green Car Congress

FEBRUARY 3, 2016

Though mixed with water, the resulting methanol can be easily distilled, Prakash said. For a comparison, there’s more than 23 times as much the noble gas Argon in the atmosphere—which still makes up less than 1% of the total volume.). They then heated the solution, converting 79% of the CO 2 into methanol. Click to enlarge.

Convert

Convert CO2 Conversion 2000

Stanford researchers develop copper-based catalyst that produces ethanol from CO at room temperature; potential for closed-loop CO2-to-fuel process

Green Car Congress

APRIL 11, 2014

volts versus the reversible hydrogen electrode) in CO-saturated alkaline water. For the Nature study, Kanan and Li built an electrochemical cell: two electrodes placed in water saturated with carbon monoxide gas. The challenge was to find a cathode that would reduce carbon monoxide to ethanol instead of reducing water to hydrogen.

Fuel

Fuel CO2 Carbon Conversion

Copper foam catalyst yields different product slate from CO2 than smooth electrodes; importance of catalyst architecture

Green Car Congress

AUGUST 13, 2014

In comparison to smooth copper electrodes, the faradaic efficiencies of CO, methane, and ethylene are reduced significantly, whereas C 2 and C 3 products such as ethane and propylene are produced in small but detectable quantities—overall, a very different product outcome than obtained from planar electrodes.

CO2

CO2 Production Conversion Hydrogen

Full lifecycle CO2 of new Mercedes C-Class 10% less than outgoing model

Green Car Congress

MARCH 31, 2014

CO 2 emissions of the C 180 in comparison to its predecessor [t/car]. The C 180 with manual transmission shows a drop in fuel consumption in comparison to its predecessor from between 7.6 Electric water pump, which makes on-demand operation possible (C 180 and C 200). Source: Mercedes-Benz. Click to enlarge. l/100 km (36.8

Mercedes

Mercedes CO2 2007 MPG

CO2-neutral hydrogen storage with a bicarbonate/formate system

Green Car Congress

JUNE 14, 2011

to sodium formate in 96% yield at 70 °C in water/THF without additional CO 2. In comparison to CO 2 , solid bicarbonate is easy to handle and is very soluble in water. In comparison to CO 2 , solid bicarbonate is easy to handle and is very soluble in water. Our new concept has a number of advantages.

Hydrogen

Hydrogen CO2 Sodium Store

Ford cuts manufacturing energy use 22% in 6 years; targeting additional 25% Drop by 2016

Green Car Congress

JUNE 16, 2012

Other successful initiatives—highlighted in Ford’s 13th annual Sustainability Report—include reductions in water use, waste-to-landfill and CO 2 emissions as well as improvements in vehicle fuel economy and safety. Ford’s progress has been achieved by investing in energy-saving practices and equipment.

2016

2016 Ford Manufacturer Energy

GWU team demonstrates one-pot process for optimized synthesis of controlled CNTs from CO2; coupling cement and C2CNT

Green Car Congress

MARCH 27, 2017

Stuart Licht ( earlier post ) have developed a new process that transforms CO 2 into a controlled selection of nanotubes (CNTs) via molten electrolysis; they call the process C2CNT (CO2 into carbon nanotubes). The production of synthetic fuels from carbon dioxide (and/or water) has been widely studied and can be efficient.

CO2

CO2 Carbon Gas-Electric 2017

Proof-of-principle of cost-effective methane cracking technology for H2 production without CO2; 50% cleaner than SMR, comparable to electrolysis

Green Car Congress

NOVEMBER 19, 2015

CO 2 emissions from the ammonia industry alone amount to approximately 200 million tons per year—by comparison, Germany generates around 800 million tons of carbon dioxide per year. The compared hydrogen production technologies were steam methane reforming (SMR) and water electrolysis coupled with renewable electricity.

Cleaner

Cleaner Production Kits CO2

DOE awards ~$25M to 8 projects for CO2 capture and compression; $15M for novel Direct Fuel Cell system

Green Car Congress

SEPTEMBER 2, 2015

Water vapor, residual oxygen, nitrogen and the CO 2 from the input fuel pass through the cathode to the system exhaust. A secondary benefit is to show that this technology has a reduced footprint in comparison to competing baseline technologies. The cathode consumes oxygen from the air and the CO 2 from the carbonate ion transfer.

Fuel

Fuel Coal CO2 Exhaust

Tesla Model 3 used by Police Department reveals massive financial savings

Teslarati

JULY 22, 2021

The EV Club of Connecticut completed a vehicle cost comparison analysis after the first year of ownership shows that, despite the additional initial cost of the Model 3, reduced maintenance costs, along with decreased customization needs for the Model 3, gave the department a savings of around $17,600. Reduced maintenance.

Connecticut

Connecticut Tesla Maintenance Purchase

Review finds encouraging progress in electrochemical reduction of CO2 to organic compounds; substantial advances in catalysts, electrolytes and reactors still required

Green Car Congress

DECEMBER 7, 2010

In comparison, the electrolysis of water, which is a mature technology, also allows storage of electricity in chemical form (hydrogen); however, hydrogen does not fit into the existing infrastructure as well as liquid fuels, has a lower volumetric energy density, and requires compression or liquefaction for storage.

Conversion

Conversion CO2 Hydrogen Carbon

CPT, TU Wien study finds 48V mild diesel hybrid cuts engine-out NOx 9%, 4.5% fuel economy improvement

Green Car Congress

MAY 31, 2017

The decrease in NOx emissions, moreover, was achieved with a near 5 per cent fuel economy improvement and corresponding CO2 reduction, delivered simultaneously by the SpeedStart starter-generator. The precision and repeatability of laboratory test cycles, however, makes them invaluable for vehicle back-to-back and technology comparisons.

Fuel Economy

Fuel Economy Diesel Economy Engine

Figuring Out Semiconductor Manufacturing's Climate Footprint

Cars That Think

FEBRUARY 9, 2024

This has a GWP value of 25,200 kilograms of CO2 equivalent. So that really means that it has over 25,000 times more damaging effects to the climate compared to a CO2, so the equivalent CO2 molecule. But there’s also others like NF4 that— these also have over 1,000 times more damaging to the climate than CO2. Moore: Okay.

Climate

Climate Manufacturer Emissions Industrial

The Dirty Truth of Petrol & Diesel Vehicles

Plug In India

NOVEMBER 4, 2021

Shipping is responsible for an estimated 100 crore tonnes of CO2 per year, and 10% of that is shipping oil. of electricity comes from sources that emit no CO2. And if the EV is powered with clean electricity, it is clean from start to finish. In India 39.1% In Europe it is even better at 56%.

Petrol

Petrol Diesel Vehicles Oil

Naysayer Alert – the hydrogen red herring

My Electric Car

AUGUST 21, 2020

The only by products are water and a fair degree of heat, the latter indicating a degree of inefficiency and wasted energy. Second, while hydrogen can be otherwise produced through the electrolysis of water, this process requires huge amounts of clean and fresh water – a vital and highly valuable commodity of life that can’t be wasted.

Hydrogen

Hydrogen Petrol Gas-Electric Lithium Ion

Study on Greenhouse Gas Emissions from Global Cities Highlights Importance of Geophysical and Technical Factors

Green Car Congress

SEPTEMBER 7, 2009

The metabolism of a city can be interpreted either primarily in terms of energy flows or more broadly including a city’s flows of water, materials, and nutrients. They calculated emissions for ten cities (or metropolitan regions), which vary in population from 432,000 to 9,519,000; comparisons are in per capita terms. t e CO2/cap.)

Emissions

Emissions Global Gas Los Angeles

Zinc Orthogermanate Nanoribbons Support Improved Photocatalytic Reduction of CO2 to Renewable Methane

Green Car Congress

SEPTEMBER 29, 2010

Researchers at Nanjing University and Anhui Polytechnic University in China have synthesized zinc orthogermanate (Zn 2 GeO 4 ) ultralong nanoribbons which show promising photocatalytic activity toward the reduction of CO 2 into renewable methane (CH 4 ) and water. —Liu et al. The nanoribbons delivered a CH 4 yield of ~1.5

Renewable

Renewable CO2 Water Conversion

Volkswagen presents status of fleet study in electromobility; latest generation of twïnDRIVE plug-in hybrid

Green Car Congress

JUNE 29, 2011

In parallel, more and more electricity is being generated from solar and water power. L/100 km (112 mpg US) is attained (equivalent to 49 g/km CO2). As a comparison, the Golf blue-e-motion concept car with full electric drive has a battery capacity of 26.5 These forms of energy must also be used for mobility, Volkswagen says.

Plug-in

Plug-in Fleet Plug Hybrid

MIT study finds including non-CO2 emissions from synthetic aviation fuel in lifecycle analysis of climate impact can lead to decrease in relative environmental merit; need for a holistic analysis framework

Green Car Congress

NOVEMBER 23, 2011

However, this approach neglects non-CO 2 combustion emissions and effects, namely, soot and sulfate aerosols, water vapor, and NO x. Greenhouse gases are a convenient metric of comparison because their cause and environmental effect are both important and readily quantified. Many other factors have less quantifiable impacts.

MIT

MIT Climate Emissions Ozone

Japanese carmakers still ‘most sustainable’

Green Cars News

OCTOBER 30, 2009

A focus on tailpipe CO2 emissions has distracted away from the impact of car production, suggests Professor Frank Figge who co-authored the ‘Sustainable Value in Automobile Manufacturing’ study. billion, in comparison with BMW, which having used all the resources considered necessary to create value doubled its sustainable value to €2.8

Sodium

Sodium 2007 GM 2005

Headwaters Inc and Axens Form Direct Coal Liquefaction Alliance

Green Car Congress

JANUARY 21, 2010

Building on decades of experiences in DCL and a database on a wide range of coals, both companies have continued to increase liquid yields, improve energy efficiency, lower production costs and reduce the environmental footprint (CO 2 emissions and water consumption). Half the water consumption. 25% higher thermal efficiency.

Coal

Coal Diesel Hydrogen Gasoline

Automakers agree on common plug to recharge electric vehicles

Tony Karrer Delicious EVdriven

APRIL 20, 2009

A 220 volt socket like on your water heater or dryer would be better, ad these typically have 40 or 50 amp circuits, so they can deliver 8,000 to 10,000 watts - is this what they mean? Nuclear waste is a problem much harder to solve than CO2, and dams have quite an impact in the environment. excluding coal power in china.

Recharge

Recharge Plug Electric Vehicles 2009

GM Says Chevrolet Volt Won't 'Pay the Rent' | Autopia from Wired.com

Tony Karrer Delicious EVdriven

APRIL 16, 2009

That way you have a fair basis of comparison, you know, apples to apples and all that jazz. Generating electricity from wind and geothermal rather than a CO2 producing sources would help alleviate that problem. The intolerable act is to pretend that making cars into plug-ins will reduce CO2. Many others are not so careful.

Volt

Volt GM Chevrolet EV1

EV Driven

Sandia team puts power into local grid with supercritical CO2 closed-loop Brayton-cycle turbine

RENK supplies special gear units for compressors for production of green steel

SRI developing process for co-gasification of methane and coal to produce liquid transportation fuels; negligible water consumption, no CO2

Geely invests in Carbon Recycling Intl.; vehicles fueled by methanol from CO2, water and renewable energy

New Audi paintshop at Ingolstadt; heating energy & water per car down by 20%, CO2 by 30%, VOCs by 90%; bell-bell

USC team develops highly efficient catalyst system for converting CO2 to methanol; 79% yield from CO2 captured from air

Stanford researchers develop copper-based catalyst that produces ethanol from CO at room temperature; potential for closed-loop CO2-to-fuel process

Copper foam catalyst yields different product slate from CO2 than smooth electrodes; importance of catalyst architecture

Full lifecycle CO2 of new Mercedes C-Class 10% less than outgoing model

CO2-neutral hydrogen storage with a bicarbonate/formate system

Ford cuts manufacturing energy use 22% in 6 years; targeting additional 25% Drop by 2016

GWU team demonstrates one-pot process for optimized synthesis of controlled CNTs from CO2; coupling cement and C2CNT

Proof-of-principle of cost-effective methane cracking technology for H2 production without CO2; 50% cleaner than SMR, comparable to electrolysis

DOE awards ~$25M to 8 projects for CO2 capture and compression; $15M for novel Direct Fuel Cell system

Tesla Model 3 used by Police Department reveals massive financial savings

Review finds encouraging progress in electrochemical reduction of CO2 to organic compounds; substantial advances in catalysts, electrolytes and reactors still required

CPT, TU Wien study finds 48V mild diesel hybrid cuts engine-out NOx 9%, 4.5% fuel economy improvement

Figuring Out Semiconductor Manufacturing's Climate Footprint

The Dirty Truth of Petrol & Diesel Vehicles

Naysayer Alert – the hydrogen red herring

Study on Greenhouse Gas Emissions from Global Cities Highlights Importance of Geophysical and Technical Factors

Zinc Orthogermanate Nanoribbons Support Improved Photocatalytic Reduction of CO2 to Renewable Methane

Volkswagen presents status of fleet study in electromobility; latest generation of twïnDRIVE plug-in hybrid

MIT study finds including non-CO2 emissions from synthetic aviation fuel in lifecycle analysis of climate impact can lead to decrease in relative environmental merit; need for a holistic analysis framework

Japanese carmakers still ‘most sustainable’

Headwaters Inc and Axens Form Direct Coal Liquefaction Alliance

Automakers agree on common plug to recharge electric vehicles

GM Says Chevrolet Volt Won't 'Pay the Rent' | Autopia from Wired.com

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