May 17, 2020

Hydrocarbon Ethanol Production

Natural Gas
4 min
Hydrocarbon ethanol production could produce more than a million tons of ethanol annually without using a grain of corn
TO ENHANCE YOUR READING EXPERIENCE, VIEW THIS ARTICLE IN OUR INTERACTIVE READER! Written by Travis Jacobsen Where is the written rule that ethanol has...


Written by Travis Jacobsen

Where is the written rule that ethanol has to be produced from precious food sources? Recently introduced technology enables large scale, ethanol production using conventional sources such as natural gas rather than corn or other food at costs that are nearly half of corn-based methods. 

A Celanese Corporation research and development team in Clear Lake, Texas, developed the technology, called TCX™, making hydrocarbon-based ethanol a viable player among the world’s liquid fuels. Business media is already citing the technological breakthrough as a ‘game-changer’ (Forbes Magazine – Nov. 16, 2010) for global ethanol production since using hydrocarbons does not impact food supplies and prices or arable land. Instead, it provides a flexible and more cost effective ethanol source for industrial manufacturers and fuel refiners worldwide.

Corn-based ethanol has written its own story. Prices are unstable and escalating. In April 2011, U.S. corn prices spiked to their highest level since 2008, requiring massive subsidies paid by governments in several countries to make the use of corn-based ethanol economical. Corn as a feedstock is also inefficient. Consider the energy needed to plant, grow, harvest, refine and transport the corn for ethanol. Some estimate it takes more energy to create corn-based ethanol than it produces.

Finally, even if the entire supply of corn grown in the U.S., the world’s biggest producer, were converted to motor vehicle fuel, it would only fulfill about 25% of the U.S. gasoline demand. And the equation does not consider the impact on food prices.

Hydrocarbon-based ethanol shatters the paradigm limiting ethanol production sources. It opens doors to economical and efficient ethanol production without consuming arable land or competing with sources of food. Celanese will launch its TCX™ ethanol production in China targeting industrial ethanol applications. Chemically similar to fuel-use ethanol, industrial-use ethanol is a smaller, but rapidly growing, segment. The company has announced plans to construct one, and possibly two, greenfield units in China. Each site is capable of producing more than 1 million tons of ethanol and could be operational within 30 months of project approvals. Additionally, Celanese recently announced plans to accelerate its market entry by choosing to modify and enhance its existing integrated acetyl facility at the Nanjing Chemical Industrial Park with its TCX advanced ethanol technology. The modifications would add approximately 200,000 tons of ethanol production capacity by mid-2013, pending approvals, and would accelerate Celanese’s ethanol production project in China six to twelve months from its previous plan. Coal will be the feedstock for the Chinese ethanol production plants.

While Celanese initially targets the industrial-use market, it continues to advance plans for application of the technology in the larger transportation fuel-use market. China, with the world’s most rapidly growing transportation fuels and energy demand, is one of the company’s initial targets.

In addition to China, other countries or regions meeting these four major criteria are prime candidates for hydrocarbon-based TCX™ ethanol production:

1) Desire to reduce imported energy dependence

2) Access to economically attractive hydrocarbons (natural gas, coal or pet coke)

3) Government policies that support technology and raw material neutrality

4) Interest in improving tailpipe emissions

In the United States, Celanese plans to build a developmental TCX™ ethanol production unit at its Clear Lake, Texas facility, where the technology was invented. This facility will use natural gas as its primary raw material. But for now, production in the U.S. will be limited to technology advancement only. Current legislation does not allow ethanol produced from natural gas to be used as a fuel blend – even though the cost of ethanol produced using Celanese TCX™ technology is equivalent to gasoline produced from $60 per barrel crude oil.

Fuel ethanol production does not have to be constrained by corn production. With Celanese’s advanced TCX™ technology, ethanol production is economical and scalable for consumption worldwide.

As Celanese chairman and CEO Dave Weidman says, “While we are focusing on industrial uses at this time, we are also exploring opportunities to apply this technology to fuel ethanol applications in regions where the commercial environment is supportive.”

The benefits of hydrocarbon-based ethanol are clear. By using the most available and economically viable hydrocarbons in the region, Celanese’s innovative TCX™ technology has significant cost advantages over conventional ethanol production methods and will reduce an economy’s dependence on foreign oil and the use of arable land.

It’s time to look at ethanol production in a new way.

Travis Jacobsen, Celanese Media Relations

Share article

Oct 19, 2020

Itronics successfully tests manganese recovery process

Scott Birch
3 min
Nevada firm aims to become the primary manganese producer in the United States
Nevada firm aims to become the primary manganese producer in the United States...

Itronics - a Nevada-based emerging cleantech materials growth company that manufacturers fertilisers and produces silver - has successfully tested two proprietary processes that recover manganese, with one process recovering manganese, potassium and zinc from paste produced by processing non-rechargeable alkaline batteries. The second recovers manganese via the company’s Rock Kleen Technology.

Manganese, one of the four most important industrial metals and widely used by the steel industry, has been designated by the US Federal Government as a "critical mineral." It is a major component of non-rechargeable alkaline batteries, one of the largest battery categories sold globally.

The use of manganese in EV batteries is increasing as EV battery technology is shifting to use of more nickel and manganese in battery formulations. But according to the US Department of Interior, there is no mine production of manganese in the United States. As such, Itronics is using its Rock Kleen Technology to test metal recoverability from mine tailings obtained from a former silver mine in western Nevada that has a high manganese content. 

In a statement, Itronics says that its Rock Kleen process recovers silver, manganese, zinc, copper, lead and nickel. The company says that it has calculated – based on laboratory test results – that if a Rock Kleen tailings process is put into commercial production, the former mine site would become the only primary manganese producer in the United States.

Itronics adds that it has also tested non-rechargeable alkaline battery paste recovered by a large domestic battery recycling company to determine if it could use one of its hydrometallurgical processes to solubilize the manganese, potassium, and zinc contained in the paste. This testing was successful, and Itronics was able to produce material useable in two of its fertilisers, it says.

"We believe that the chemistry of the two recovery processes would lend itself to electrochemical recovery of the manganese, zinc, and other metals. At this time electrochemical recovery has been tested for zinc and copper,” says Dr John Whitney, Itronics president. 

“Itronics has been reviewing procedures for electrochemical recovery of manganese and plans to move this technology forward when it is appropriate to do so and has acquired electro-winning equipment needed to do that.

"Because of the two described proprietary technologies, Itronics is positioned to become a domestic manganese producer on a large scale to satisfy domestic demand. The actual manganese products have not yet been defined, except for use in the Company's GOLD'n GRO Multi-Nutrient Fertilisers. However, the Company believes that it will be able to produce chemical manganese products as well as electrochemical products," he adds.

Itronics’ research and development plant is located in Reno, about 40 miles west of the Tesla giga-factory. Its planned cleantech materials campus, which will be located approximately 40 miles south of the Tesla factory, would be the location where the manganese products would be produced.

Panasonic is operating one of the world's largest EV battery factories at the Tesla location. However, Tesla and other companies have announced that EV battery technology is shifting to use of nickel-manganese batteries. Itronics is positioned and located to become a Nevada-0based supplier of manganese products for battery manufacturing as its manganese recovery technologies are advanced, the company states.

A long-term objective for Itronics is to become a leading producer of high purity metals, including the U.S. critical metals manganese and tin, using the Company's breakthrough hydrometallurgy, pyrometallurgy, and electrochemical technologies. ‘Additionally, Itronics is strategically positioned with its portfolio of "Zero Waste Energy Saving Technologies" to help solve the recently declared emergency need for domestic production of Critical Minerals from materials located at mine sites,’ the statement continues.

The Company's growth forecast centers upon its 10-year business plan designed to integrate its Zero Waste Energy Saving Technologies and to grow annual sales from $2 million in 2019, to $113 million in 2025.

Share article